Auto Run and Auto Play functions can pursue your Windows performance. Even that can enlarge chance for viruses attacking to your operation system.
Not all disks need this function, to starting their work. So it’s better for you turn off this function, because you steel can use your CD by using your browser (manually).
There is step by step for do that :
Klik Start menu => Run
On open tab, write-down gpedit.msc
Will be seen group policy window
Klik Administrative Template above Computer Configuration
On right side double klik on System folder
found Turn off AutoPlay and double klik
will be seen pop up turn off autoplay properties window, chose enabled
klik pull down menu on Turn off AutoPlay on tab, after that chose all drives if you want to turn off auto play on all drives or chose CD-ROM Drives if you just want to turn off auto play on CD-Rom, in this chosen USB Flash disk and Floppy disk auto play function still active
Klik OK, and repeat all step above for Administrative Template on User Configuration
Friday, February 15, 2008
SECURE and OPTIMIZE Your WinXP by Turn off AutoRun and AutoPlay Functions
TIPS Buy Motherboard for Your Computer
If you want to buy a motherboard you must notice some things. So you do not need to make regretting any more. There some tips for your consideration to buy motherboard.
1. Adjust Brand between Motherboard and Processor
Motherboard as a connector for many devices has important relationship with type of processor. Because if you chose wrong socket to processor. May simply, your processor can not attached and work properly. For example, if you use Processor Intel Pentium 4 Extreme Edition (Prestonia) so you can use motherboard with socket LGA 775.
There are some socket specification and their processor
2. Buy Motherboard that Can Anticipated Growth of Epoch
Growth of Computer is really faster, so you need a motherboard that has ability to accommodate that growth. Chose motherboard that can anticipated growth of computer devices like RAM (chose MB which compatible for SDRAM or DDR SDRAM), Harddisk (chose that support harddisk interface Ultra ATA / 100) and support AGP Port.
3. Motherboard with Appropriate Chipset
Take mistake on chipset choosing, will decrease your processor performance and your computer will be unstable. But many number of choice can make we confuse, at least you can paid your attention on some things above
- For Intel Pentium processor or Celeron Third Generation and more, chose motherboard with Intel 815E chipset, 815EP, VIA Apollo series, SIS 63X series or Ali Aladdin Pro series
- For AMD Athlon or Duron Processor, chose motherboard with VIA chipset KT series, Ali Magic 1 or SIS 73X series
4. Motherboard with many ports
Some additional Port which enough important are amount of adequate socket (minimal have 3 sockets DIMM), have AGP port, USB port, AMR (Audio Modem Riser) and so on.
5. Motherboard that Offering Overclocking Ability From BIOS
With overclocking from BIOS, you can get easily for controlling frequency increases and voltage of processor and memory step by step and also minimalist risk to computer broken.
6. Corresponding to Your Finance Condition
This is most important part. Buy a good motherboard usually need much money. But don’t need to spend to much, if you buy motherboard that have direct integration with other Cards like VGA Card, Sound Card, LAN Card and any else.
But if you need more performance from your computer, buying those cards separately (buy with the specification that you want) is better for you.
So it’s depend no you.
From various reference
Wednesday, February 06, 2008
Your Computer Is Your Enemy
The old cliché, "If you want a friend, get a dog" still stands in the 21st
Century. It is well established in the medical community that animals can do
much to extend the human life span as well as improve the quality of life. Don't
live on or vicariously through your computer.
A pastor once said his job was to comfort the afflicted and to afflict the
comfortable. Thus we have the difference between a real live pet and an
inanimate electro-mechanical object - in this case the personal computer. The
pet comforts while the computer, improperly used and/or over used, is a thief
and a murderer.
Besides, the computer, especially if you run a Microsoft Operating System
and Microsoft production software, requires much more maintenance than does a
pet.This alone is enough to drive most users' blood pressure through the roof.
How many times do you suspect that needs to happen before it begins to take a
toll on the human body? It is even more aggravating than the days when we
only received three (3) snowy channels on a small black and white television and
each channel required another trip outside in the rain, in the cold, in the
snow, in the heat to adjust the huge antenna attached to a corner of the house
which spilled the rain directly into your face as you looked up to see in which
direction the antenna was pointing. If you were lucky someone was in the house
calling to you when you got the best picture.
You know what I am talking about... like when your computer locks up with a box
popping up on the monitor's screen saying it needs to restart now, and won't let
you do anything else until you acquiesce and reboot. There goes your last few
minutes of work. Another blood pressure jump! It sure is for the Tennessee
Mountain Man!
Father may know best, but mother knows even better and she always made the
children set across the room from the TV concerned about it ruining their
vision. Now that same mom allows the children and grandchildren to set on top of
a twenty-one (21) inch monitor, even closer to a laptop, and play games ad
infinitum. The result being more and more of our children are wearing glasses
and contact lenses at younger and younger ages.
Mom also insisted that little ones spend much more time outside playing in the
yard than obsessing over the magic box in the corner, and the children were
healthier. There were fewer cases of childhood diabetes and hardly any childhood
obesity.
Children learned skills greater than cheating x-box and PSP, and mom and pop
never heard of Carpal Tunnel Syndrome. The computer man and everyone else is
seemingly required to work on or at computer consoles to some extent these days.
As a result, the entire family now either suffers from a computer related
ailment or is at real risk of developing one.
With the advent and prevalence of the personal computer and gaming gizmos, the
heart, which is a muscle, gets little or no exercise. As if the TV did not
create enough couch potatoes resulting in what amounts to atrophy of the heart
muscle, the PC seems to have claimed the remainder of man.
A computer cannot hold you on cold nights or enjoy a walk hand-n-hand with you
in the moonlight. It cannot comfort you when you are sick or improve your mood
when you are sad. It cannot feed you when you are hungry nor give you a drink
when you are thirsty... at least not yet. The PC cannot yet carry on a civil or
reasoned conversation. Irrespective of one's addictions and all the attractions
on the internet, it is not true social interaction and it certainly cannot
satisfy the libido try as some may.
Used improperly it can and does drive wedges between husbands and wives, and
between children and parents. Like a drug, once addicted, and it is addictive,
it can cost one his job and it has. Like a nosy gossiping neighbor or ticked off
lover, it has the propensity to tell the world (friend and foe alike) everything
it knows (both good and bad) about you. And, in case you didn't know, there are
hackers from people with malicious intentions, to your employer, to Microsoft,
to insurance companies, to financial institutions, to the government who have
the ability to ask your computer what it knows about you whenever they wish.
And, your computer... your friend in whom you confide everything, like a spurned
lover is more than willing to betray her paramour and spill her guts literally.
My computer... my friend? With such friends who needs enemies?
If you don't know how to protect yourself from a gabby computer you might want
to seek the help of professionals like the folks at Remote Helpdesk 1. Now shut
the glib computer down, and go outside and play.
Video Card
A video card, also referred to as a graphics accelerator card, display adapter, graphics
card, and numerous other terms, is an item of personal computer hardware whose function
is to generate and output images to a display. It operates on similar principles as a
sound card or other peripheral devices.
The term is usually used to refer to a separate, dedicated expansion card that is plugged
into a slot on the computer's motherboard, as opposed to a graphics controller integrated
into the motherboard chipset. An integrated graphics controller may be referred to as an
"integrated graphics processor" (IGP).
Some video cards offer added functionalities, such as video capture, TV tuner adapter,
MPEG-2 and MPEG-4 decoding or even FireWire, mouse, light pen, joystick connectors, or
even the ability to connect two monitors.
Video cards are not used exclusively in IBM type PCs; they have been used in devices such
as Commodore Amiga (connected by the slots Zorro II and Zorro III), Apple II, Apple
Macintosh, Atari Mega ST/TT (attached to the MegaBus or VME interface), Spectravideo
SVI-328, MSX and in video game consoles.
Memory (RAM)
Memory or RAM (Random Access Memory) is a primary
component that help
Processor performances in speedy.
written and read.
Memory work by remembering all that have been input. So over greater
the memory capacity, can make computer work more quickly.
According to process that they do, memory are divided coming 4 kinds of
memory :
3. Working Storage, as saving data which on process and will be
process
A Small History Of Motherboards
In this day and age our world is mainly run by one thing: computers. Everyone
wants a better performing computer, laptop or pocket PC,
because of the wide range of applications available for them. But how did it all
start? Who were the pioneers of it all?
Before we discuss this aspect, you need to know what a computer consists of. The
most common type of a computer is called IBM-compatible. There are
several components that make such a machine work and these are: the
motherboard, microprocessor, RAM and other devices usually linked to the
motherboard through cables or various other connectors.
The main topic of this article is motherboards. They represent the
central piece of any desktop computer, because through them all the other
devices communicate, synchronize and perform various functions for which they
are designed.
Let’s talk about computers in their beginning. The first computer that used a
motherboard as the central piece was presented on the market in 1981 by IBM –
the IBM PC. You may have guessed this, since today’s computers are called
IBM-compatible.
The features of this computer consisted of: 4.77MHz Intel microprocessor,
16K bytes of memory, 8-bit ISA connectors and ports for keyboard and tape. Other
ports like serial, parallel and floppy drive connectors could be provided
through plug-in boards. All of these features may seam ancient to us now, but at
that time they were top of the line.
Before the presentation of the IBM PC, all the computers were built using a case
and the components were linked using a backplane. This consisted of a set of
slots linked together with wires. The difference between a backplanes and
motherboards is the lack of on-board power of processing and the CPU is on a
separate plug-in card.
The cost effectiveness of placing more components onto a single hardware piece
became a well-known fact. Therefore, in the late 1980s, motherboards were
improved with a set of chips that were capable to support some low-level
peripherals like mouse and keyboard, serial and parallel ports, floppy disk
drives and more.
Today’s motherboards are far more advanced. Since the beginning of the 21st
century, it became common for a motherboard to support video, audio, networking
and storage functions without needing other expansion cards. For people who
wanted higher performances, for example, 3D gaming, a separate graphics card was
the only thing they needed.
If you want to purchase a new computer, you should purchase it according to your
needs. If you want to play advanced video games, than a high performance PC is
required. On the other hand, for simple tasks like editing documents and reading
email, you do not need to spend a fortune.
A little information never hurt anybody. Do your homework before you make any
purchase and compare the performances of one system with the ones of another!
You should also be careful regarding the compatibility of you motherboard with
the other components.
Article Directory: http://www.articledashboard.com
Now you know how motherboards came into play and the importance of them for all
the people around the world. Always be sure that a motherboard has all the
features you need before you buy it so you won’t be sorry afterwards.
Motherboard
Motherboard is board that have connective among
component one with the other component (On the radio, it's same like PCB).
components (Processor, Memory, Display Card, and other component).
As a connectivity, motherboard is a important components because ifmotherboard is broken, other device on this component will be broken too is an
effect from the happening or misconnection among components, so your computer
will not run correctly.
Top 8 Computer Maintenance Tips
Owning a computer leads to having to maintain it, and unfortunately for
many of us this can be seen as a cumbersome process. But if you follow the
simple guidelines listed below you’ll find that maintaining your computer is
really not as hard as it may appear.
These steps will not only aid in giving you
better performance but can prevent future problems with the operation of your
computer.
Here are the top 8 tips for maintaining your computer and ensuring you
get the most out of it...
1. Windows Updates. Although this is often seen as a chore, it’s
important to have your windows updates set to “Automatic”. This ensures that
your computer is receiving all the latest updates and patches from Microsoft
automatically. By having this enabled you’ll be protected against all the latest
security holes that may infect other computers that are not updated.
2. Defragmenter. It’s a known fact that defragmenting your computer on a
bi-monthly basis can result in smoother performance. This aids in making your
hard drive faster (and we all want a faster hard drive).
3. Virus, Spyware, Adware Protection. It’s crucial to ensure proper
maintenance of your computer that you have real time protection for viruses,
Spyware and Adware. This aids in the smooth operation of your computer.
4. Disk Cleanup. Windows has a built in disk cleanup system that will
clean and free space on your hard drive. You should run this monthly or
bi-monthly to ensure your hard drive is optimized for space. To find this option
you can go to start, program, accessories, system tools, disk cleanup.
5. Startup Limit. You should limit the number of applications that load
at startup. You can edit this option using the “msconfig” option that can be
typed as a command in windows using the run command. You’ll then be able to edit
the programs that load at startup. By limiting the number of applications at
startup, you’ll have a better operating computer at boot time, while
operational, and at shut down.
6. Windows Firewall. By default Windows has a built in firewall. This is
especially important for users with high speed connections. Ensure that you have
your firewall enabled to limit any intrusions.
7. Temporary Files. Be sure to remove temporary internet files and
windows temp files periodically as these can lead to unnecessary disk space that
can further slow down your computer. By clearing these files you free space on
your computer.
8. Shutdown Computer. Many of us get lazy and just leave the computer on
overnight. This can actually lead to memory issues and will slow down the
overall performance of your computer. Ensure that you shut down your computer
overnight or when not in use. Also try to never turn off the computer without
Windows completely shutting down first or it can lead to drive failure.
These are just basic computer maintenance tips you can follow to aid in
maintaining your computer. It will lead to overall better performance, and will
give your computer more durability.
By: Article Directory:
http://www.articledashboard.com
useful computer maintenance tools around, then visit www.cureyourregistry.com
and learn about registry repair. Download a free trial to one of the web’s top
Windows registry cleaner tools.
Tuesday, February 05, 2008
Charles Babbage
Should You Upgrade Your Hardware PC?
What if you found that your computer is out of date? You probably want to upgrade your computer since you have no choice to do so. Your works depend on your hardware computer upgrade. That’s how you going to have a good result.
But before you make any further step, try to learn about your computer. Search all options and ask for advice. Only after this you can go and buy a new component. It’s also useful to check if you really need an upgrade.
Sure, it’s not funny if you keep your old computer but you still loose data when you do your works. Its just a matter of time before you experience a hard drive problem when you still using your old computer. You dont want to loose your data, right? Of course most people only think of backing up their data after they experience a problem. Don't set yourself up for a data loss disaster. Check what hardware you need for your computer.
If you have problem with your hard disk, such as crash when you do your work, better you have it renewed. Most people upgrade their hard disk to increase the size so that they can use it for games, movies and playing a lot of music. A 20 GB hard drive is sufficient to keep new office and internet applications, and all your files and data. A medium sized hard drive would be around 40 GB and the maximum would be around 60 - 80 GB.
You can choose which perfect for your work. Of course the price is also depending on the capacity of your hard disk. If you are a gamer, you may want to have high capacity hard disk such as that 60-80 GB. But if you just used it for your writing, a 20 GB is more than enough.
Another hardware you may need to upgrade is the RAM or Random Access Memory. This memory keeps data that is being worked on now and may or may not be transferred to the hard drive that represents the long-term memory of the computer. Current processors can perform an enormous number of operations per second. Almost all computer have 64 MB RAM and often 128 MB. If you want to run newer applications on your PC then you must upgrade to 128/256 MB RAM. A lot of people who upgrade from 98 to Win 2000 discover that their computers lock up very often. This is because they don't have enough RAM.
So, those are only some part of hardware you might want to upgrade. There are others such as motherboard, CPU or port which you can upgrade. Your action depend on your need.
A Guide To Window Hardware
A variety of materials are available in window hardware. You have several options in terms of energy efficiency and design. Your personal preference, the climate and the style of your home will help you choose the right material for your house.
Types of Window Hardware
Wood
Wood has been the most common material used in window construction for generations. Wood is the easiest material to work with, either for a professional or a homeowner doing a DIY home improvement project. This material is most often used in custom work and intricately detailed designs. You have a wide range of options for painting and staining to fit every decorating need. This material is also very good in terms of energy efficiency.
The only downside of using wood is the maintenance needed. You will need to re paint or stain often. The peeling not only looks terrible, but will cause the wood to rot, if not maintained properly over the years. With good, regular maintenance, wood windows will last a long time.
Steel
Steel is most often found in older homes and basement windows. It is rarely used in newer homes because it is not very energy efficient. The heat from your home can easily escape through the frame of these windows. In addition, regular maintenance is needed. You must repaint steel regularly, or it will rust. Steel is a very durable material and is still used in hurricane storm shutters.
Aluminium
Aluminium is nearly as durable as steel. However, like steel, it is not very energy efficient and allows significant heat loss. This material does have one benefit over steel. It doesn’t require the frequent maintenance. The color of aluminium is baked on and a variety of colors are available. Repainting is not necessary.
Vinyl
Vinyl is an inexpensive and durable material for windows. In addition, vinyl is fairly energy efficient. In addition, vinyl windows are maintenance free. They don’t need to be painted. Vinyl is colored straight through, so you won’t ever see chips, scratches or peeling. A variety of colors are available to match your home’s decoration.
The biggest problem with vinyl is that it can look cheap. There are vinyl products that are made to look like wood, but the effect isn’t very good. They still have a plastic look.
Fibreglass
Fibreglass is a fairly new material for window construction. It is very durable and energy efficient. When insulated properly, it is one of the best in terms of energy efficiency. There is little heat loss with well insulated fibreglass windows. You will pay for this efficiency. These windows are among the most expensive.
Things to Consider When Choosing Window Hardware
Consider the climate where you live. If you live in a hot climate, you want to keep the heat out and the cold air in your home. Look for windows with a lower U value.
If you live in a colder climate, you want just the opposite: to keep the cold out and heat in. Heat loss is a major problem in cold climates and you’ll want to prevent this both through the frame and the glass. Choose energy efficient material and insulate it well. Consider insulated glass, which adds to the energy efficiency of the window. These products contain two layers of glass with argon gas in between the layers.
When replacing windows, consider the design of your home. You want the windows to match the architectural elements of your home. Make sure the material you choose fits in with the time period of your home. You won’t want wood, Colonial style windows on a modern Contemporary home.
by: Charles Mohaney / Articlecity.com
Keyboard Shortcut
Some times we need do our works quickly. Although we work with the computer (high technology), we still need to control so many keys on keyboard. Beside keyboard often-times, we need controlling mouse too and than your workflow rate really slows down.
That's particularly true when you're working on a laptop, where the pointing device is even slower.
The solution to faster and make more simple work, you can use the shortcut button. there is some of best shortcut for you :
1. ALT - F4 will terminate any program immediately.
2. ALT - TAB to flick through open programs.
3. CTRL - SHIFT and move cursor with left / right / up / down arrows to quickly select areas of text.
4. CTRL - X / C / V to cut, copy and paste selected text.
5. CTRL - Z will undo anything. (And to redo: CTRL - Y although this varies between programs.) 6. use Page Up & Page Down to save time fiddling with the scroll bar.
7. use CTRL - END to go the end of the page or ENG to go to the end of the sentence
8. WINDOWS KEY - E to open windows explorer. Use up and down arrows to quickly navigate through folders.
9. F2 - rename a file or folder in Windows Explorer
10. CTRL - F to find text on a page (And CTRL - H replace it).
11. Use TAB to move forward through forms and SHIFT-TAB to move backwards
13. Use CTRL - ALT - DELETE when your computer don't give respond any more (to ended the program)
After a little practice, your fingers will be flying across the keyboard like a shortcut pro.
And you'll save a huge amount of time too.
Microprocessors
The introduction of the microprocessor in the 1970s significantly affected the design and implementation of CPUs. Since the introduction of the first microprocessor (the Intel 4004) in 1970 and the first widely used microprocessor (the Intel 8080) in 1974, this class of CPUs has almost completely overtaken all other central processing unit implementation methods. Mainframe and minicomputer manufacturers of the time launched proprietary IC development programs to upgrade their older computer architectures, and eventually produced instruction set compatible microprocessors that were backward-compatible with their older hardware and software. Combined with the advent and eventual vast success of the now ubiquitous personal computer, the term "CPU" is now applied almost exclusively to microprocessors.
Previous generations of CPUs were implemented as discrete components and numerous small integrated circuits (ICs) on one or more circuit boards. Microprocessors, on the other hand, are CPUs manufactured on a very small number of ICs; usually just one. The overall smaller CPU size as a result of being implemented on a single die means faster switching time because of physical factors like decreased gate parasitic capacitance. This has allowed synchronous microprocessors to have clock rates ranging from tens of megahertz to several gigahertz. Additionally, as the ability to construct exceedingly small transistors on an IC has increased, the complexity and number of transistors in a single CPU has increased dramatically. This widely observed trend is described by Moore's law, which has proven to be a fairly accurate predictor of the growth of CPU (and other IC) complexity to date.
While the complexity, size, construction, and general form of CPUs have changed drastically over the past sixty years, it is notable that the basic design and function has not changed much at all. Almost all common CPUs today can be very accurately described as von Neumann stored-program machines. As the aforementioned Moore's law continues to hold true, concerns have arisen about the limits of integrated circuit transistor technology. Extreme miniaturization of electronic gates is causing the effects of phenomena like electromigration and subthreshold leakage to become much more significant. These newer concerns are among the many factors causing researchers to investigate new methods of computing such as the quantum computer, as well as to expand the usage of parallelism and other methods that extend the usefulness of the classical von Neumann model.
Computer Device ( HARDWARE )
Hardware is divided in three kinds of function, as input, processing, and output component.
Input Components
Same with the name, this component is using to input all data into the computer. Components in this section are such as keyboard, mouse, scanner, and recorder.
Processing Components
After the computer receives input from the input components, the data will be processed in the computer. So processing component is a component that has processing function. Example components are Processor as central processor, Memory that help processor to be faster, and some cards as supporter components for processing. All of processing components is put off on the one board that we call Mainboard in the computers casing.
Output Components
These components have functions like their name, as a place for output from computer process, such as Monitor, Printer, and Speaker.
DATA
Data is come from Datum, some of complicated action that coming up from reality action. Data might from group of numbers, letters, or special symbols. Raw data still don’t have any action, so data must be processing before. Data processing is manipulation from data into better form and has more meaning, in the form of information.
Data is divided into two form :
1. Analog Data
Analog data is a data in wave form which have joining and have amplitude value and amplitude frequency.
2. Digital Data
Digital data is data with pulse character and have 1 (one) and 0 (zero) value.
Wednesday, January 30, 2008
Software Guide - Some Tips About Software
The term software is generally used for computer software that is an essential part of the computer system . It
stores and process all encoded information or computer instructions on PC. Computer software has very vast scope in
computer world.
According to computer science and software engineering computer software is all information that is processed by
computer systems, programs and other data. Software is completely opposite to hardware, which is used to store or
execute the software. Software is loaded into random access memory and then executed in central processing unit. It
belongs to machine language that is not easy to understand for the users.
Every operating system has its own software that requires an individual processor. It understands machine language
that consists of several groups of binary values, which gives processor instructions and data. Software converts
machine language in simple language that enables the users to understand machine language.
Software generates a connection between electronic hardware and data. The user can operate the sequence of data
instructions with the help of software. Software can use any type of data such as output/input. Sometimes the output
of software can be input for another software. Software provides an interface between hardware, data and other
software.
Software can be divided in three classes such as system software, application software and programming software.
System software enables the users to run computer hardware and computer system including operating system, device
drivers, diagnostic tools, servers, windowing systems and some more.
Users can perform one or more tasks simultaneously with the help of application software. With the help of
application software, they can perform all applications like office suites, business software, databases and games.
Whereas the programming software offers some functional tools that enables the programmer to write difficult
computer programs. Programming software provides some useful tools like text editor, compiler, interpreter, linker
and debugger etc.
After installing software a computer can operate that vary software. Application software passes the instructions to
system software and then computer program executes on computer.
Friday, January 25, 2008
How to Recover from (VBS/Loveletter) Virus
The ILOVEYOU, also known as VBS/Loveletter is a computer virus that is written in VBScript. This virus comes in an email with subject line "I LOVE YOU" and contains an attachment. As soon as, user open the attachment, the message being re-sent to all addresses in the address book of the recipient. This virus corrupts all the mail files in Outlook by changing their extension to .MPEG, .JPEG, .MP3, and MP4.
This virus affected only Windows users who are using Outlook 98 and 2000.If you received any such type of message, then delete this message along with the attachment. If you have opened the attachment, shut down your system until you prepared for cleaning up the virus. Make sure that your network connection is disconnected. There are many solutions of this problem is released by many companies.The first Outlook pst repair software, was developed by Narinnat Suksawat on 5th of May, 2005. The name of this anti virus was "Rational Killer."
Microsoft also released a security patch for its Outlook to protect such type of viruses and provided a free update for its users. This patch blocks 37 types of attachments from reaching them in user's inbox. This patch also prevents the virus from using user's address book for sending messages.Many users used to work on Microsoft Outlook 98 or 2000 and still using these software and they haven't updated their systems with new patch released by Microsoft. This virus may affect their Outlook account and may corrupt their mail files. I
f you are one of these users, and you get affected by this virus and it has corrupted your mail account. In such conditions you lost your important mail files and PST files such as notes, contact and calendar. Here to repair you corrupted mails and other data, you need to use PST file recovery.You may apply PST recovery software to repair and recover your corrupted PST files. These software repairs you corrupted or damaged PST files by changing them into original format. These software support GUI interface and you can use them without any high technical knowledge.If this virus has deleted your files from your inbox or other folder, you may also recover these deleted files with the help these software.
How Can You Protect Your PC From The Attack Of Virus?
If you find a virus in your system and can establish precisely what it is, it is a time to remove it from your system. Having procedures in place to detect viruses is important is a plan for how you will remove what ever you find. you must remember that the majority of virus alarms turn out to be false alarms, and are the result of some user , software ,or hardware error , proceed with your detection assuming that although it may be a virus , it just as likely to be something else , so note all symptoms carefully and see what the combination point to.
If the problem turn out to be a virus, it is still important not to panic. You need a cool head to minimize further damage and to remove the virus as cleanly and efficiently as possible, don’t just get out your copy of FORMAT or FDISK and start formatting the hard disk. Using an Anti-Virus Product Most antivirus products offer virus removal capabilities.
Usually these functions are built into the scanner, giving you the option to remove a virus from a file the moment it is detected in the file. Removal of some viruses is fairly straightforward for antivirus products can remove some viruses, but can’t remove very many. When choosing a product, ask whether the product can remove all common removable viruses. Some viruses can’t be removed, no matter how clever the author of the antivirus software.
This is because the virus has overwritten some of your original program, effectively erasing it. Without knowledge of what was supposed to be where the virus “sat down” all an antivirus product can do is offer to delete the entire program. Virus Detection Strategy If the virus is detected in the memory, but not in any file, and if the virus detected is an extremely rare virus, ask yourself whether another scanner that leaves in memory the scan string it was using can produce a false alarm when another scanner runs.
If the virus is detected in only one program on your hard disk , ask your self how often you have used this program ,If you have used it several times in the past , then any virus it has had an opportunity to infect other files, if it has not done so yet, it probably a false alarm , don’t delete the single program in which the virus was reported and don’t attempt removal, instead , reboot from an uninfected , write protected floppy disk and run another scanner to determine if it too finds something in this file . If it doesn’t assume that it is a false alarm. If the virus is detected in several programs you use commonly, you almost certainly have an infection. Do not attempt to remove the virus product yet! You may cause irreparable harm to your files.
Protecting computers from viruses Simply, do not give out your email address to widely, and never access a floppy disk given by someone you don’t know. Plus there is a load of antivirus software available which can help detect and clean out viruses, but then remember, virus programmers are driven By the desire to stay ahead of this kind of software.
PREVENTIVE MAINTENANCE OF COMPUTER SYSTEMS There are three things one can do to prevent viral infection in a computer system. These are:- 1) limited sharing of software 2) limited transitivity 3) limited functionality One can limit sharing by limiting information flow so as to form a post office set of communicating information domains in a network system , in such a system , a virus will spread only to those domains which are in the transitive flow path from its initial source.
In a system with unlimited sharing by limited information paths, limited transitivity may have an effect if users do not use all available paths, but since there is always a direct path between any two user , there s always the possibilities of infection . as an example , in a system , with transitivity limited to a distance of 1, it is safe to share information with any user you trust without having to worry about whether the user has wrongly trusted another user.
Analysts Speculate IT Tech Trends for 2008
What are the experts predicting for tech trends in 2008? At the recent Gartner Symposium/ITxpo held last October in Orlando, more than 6000 senior business and IT strategists from virtually all major industries gathered for the industry's largest conference to gain the latest advice on driving profits and performance with IT. Attendees rely on the Gartner Symposium/ITxpo for their annual planning and to gain insight into how their organizations can best use IT to address business challenges and improve operational efficiency.
Reflecting Gartner's very latest research findings, the analysts projected the 10 technologies likely to play a 'strategic' role in 2008. Gartner defines a strategic technology as one "with the potential for significant impact on the enterprise in the next three years." In addition Gartner also looks at "high potential for disruption to IT or the business, the need for a major dollar investment, or the risk of being late to adopt."
"Companies should factor these technologies into their strategic planning process by asking key questions and making deliberate decisions about them during the next two years," said David Cearley, vice president and distinguished analyst at Gartner. "Sometimes the decision will be to do nothing with a particular technology. In other cases it will be to continue investing in the technology at the current rate. In still other cases, the decision may be to test/pilot or more aggressively adopt/deploy the technology. The important thing is to ask the question and proactively plan."
Here's a look at the top 10 tech trends, and what Gartner had to say about them:
Green IT: The focus of Green IT that came to the forefront in 2007 will increase in 2008. As the impact on power grids, carbon emissions from increased use and other environmental impacts are under investigation, companies should be mindful of potential regulations that could limit the building of data centers, and should be prepared with backup plans for handling growing data demands.
Unified Communications: At present only 20 percent of the installed base with PBX has migrated to IP telephony, with more doing some sort of trial testing. Gartner says that over the next three years the majority of corporations will migrate to Internet Protocol telephony, resulting in a major change in voice communications.
Business Process Modeling: Top-level process services must be defined jointly by a set of roles (which include enterprise architects, senior developers, process architects and/or process analysts). A key to success will be an organization's ability to bring these roles together, whether they be process or service designated. Gartner also expects business process management software suites to better complement SOA applications development.
Metadata Management: Over the next three years, companies working to integrate both customer data and product data will link these master data management efforts together in an overall enterprise information management (EIM) strategy. According to Gartner "This critical part of a company's information infrastructure will enable optimization, abstraction, and semantic reconciliation of metadata to support reuse, consistency, integrity and shareability." Metadata management, Gartner notes, also extends into SOA software development projects with service registries and application development repositories.
Virtualization 2.0: Virtualization technologies can improve IT resource utilization, but with the addition of automation technologies-with service-level, policy-based active management-even greater improvements are possible. "Resource efficiency can improve dramatically, flexibility can become automatic based on requirements, and services can be managed holistically, ensuring high levels of resiliency," Gartner says.
Mashup and Composite Apps: Over the next 3 years, Web mashups will be the way companies create composite enterprise applications, Gartner predicts. Mashup technologies will evolve significantly over the next five years, and application leaders must take this evolution into account when evaluating the impact of mashups and in formulating an enterprise mashup strategy.
Web Platform and Web-Oriented Architecture: Software-as-a-Service, in which applications are available on-demand over the Web, is becoming a sensible option for many companies. Emerging Web platforms, Gartner says, will provide service-based access to information, applications, and business processes through Web-based "cloud computing" environments. Companies must also look beyond SaaS to examine how Web platforms will impact their business in 3-5 years.
Computing Fabric: According to Gartner researchers, "A computing fabric is the evolution of server design beyond the interim stage, blade servers, that exists today. The next step in this progression is the introduction of technology to allow several blades to be merged operationally over the fabric, operating as a larger single system image that is the sum of the components from those blades. The fabric-based server of the future will treat memory, processors, and I/O cards as components in a pool, combining and recombining them into particular arrangements to suit the owner's needs." The researcher added, "For example a large server can be created by combining 32 processors and a number of memory modules from the pool, operating together over the fabric to appear to an operating system as a single fixed server."
Real World Web: The term "real world Web" is informal, referring to places where information from the Web is applied to the particular location, activity or context in the real world. Gartner states, "It is intended to augment the reality that a user faces, not to replace it as in virtual worlds. It is used in real-time based on the real world situation, not prepared in advance for consumption at specific times or researched after the events have occurred." It gives the example of a navigation unit that adjusts the information it delivers as a car or boat moves around. Gartner sees real world Web application improving many business processes and creating new revenue streams.
Social Software: The Web 2.0 market will go through a lot of changes between now and 2010, Gartner says, and will experience considerable flux with continued product innovation and new entrants, resulting in considerable vendor consolidation. However, the research firm does see social networking being adopted by many enterprises to augment traditional collaboration.
According to Gartner, "These 10 opportunities should be considered in conjunction with many proven, fully-matured technologies, as we as others that did not make this list, but can provide value for many companies," said Carl Claunch, vice president at Gartner. "For example, real-time enterprises providing advanced devices for a mobile workforce will consider next-generation smartphones to be a key technology, in addition to the value that this list might offer."
Program
Program or Software is a group of computer instructions which have sort.
With the program computer can do something like a word processor. In modern computer, computer can do many instructions without a mistake and the process doesn’t need much time, the computer can execute billion of instruction every second.
In most computers, individual instructions are stored as machine code with each instruction being given a unique number (its operation code or opcode for short). The command to add two numbers together would have one opcode, the command to multiply them would have a different opcode and so on. The simplest computers are able to perform any of a handful of different instructions, the more complex computers have several hundred to choose from—each with a unique numerical code.
All of code or symbol which computer process as appliance communicates, as a way to submit the human think to the computer in the form of commands is a Programming Language.
There are three kind of Programming Language, they are :
1. Machine Code
Machine Code A language that only have ‘0 and 1’ codes or ‘Blaze and Extinct’.
Example : Apple 6502
2. Low Level Language
It is a language that has codes too, but no longer use ‘0 and 1’ , this language use alphabets.
Example : Assembly Language
3. High Level Language
In this language, language that in use has come near human languages, because the commands in this language are sentences which represent words in English.
Example : BASIC (Beginners All-purpose symbolic Instruction Code), COBOL (Common Business Oriented Language), FORTRAN (Formula Translator), Pascal, etc.
From Various Reference
Computer Types
Computer that we use are have many types.
The type is determined from several thing :
- Based From Data Processing
Analog Computers
Digital Computers
Hybrid Computers
- Based From The Function
General Purpose
Special Purpose
- Based From The Capacities
Micro Computer
Mini Computer
Small Computer
Medium Computer
Large Computer
Super Computer
From Various Reference
Joseph M Jacquard
Man Behind The Computer
Jacquard died at Oullins (Rhône), 7 August 1834. Six years later a statue was erected to him in Lyon, on the site where his 1801 exhibit loom was destroyed.
How The Computers Work ?
A general purpose computer has four main sections: the arithmetic and logic unit (ALU), the control unit, the memory, and the input and output devices (collectively termed I/O). These parts are interconnected by busses, often made of groups of wires.
The control unit, ALU, registers, and basic I/O (and often other hardware closely linked with these) are collectively known as a central processing unit (CPU). Early CPUs were composed of many separate components but since the mid-1970s CPUs have typically been constructed on a single integrated circuits called a Microprocessor.
The control unit (often called a control system or central controller) directs the various components of a computer. It reads and interprets (decodes) instructions in the program one by one. The control system decodes each instruction and turns it into a series of control signals that operate the other parts of the computer. Control systems in advanced computers may change the order of some instructions so as to improve performance.
A key component common to all CPUs is the program counter, a special memory cell (a register) that keeps track of which location in memory the next instruction is to be read from.
The control system's function is as follows—note that this is a simplified description, and some of these steps may be performed concurrently or in a different order depending on the type of CPU:
Read the code for the next instruction from the cell indicated by the program counter.
Decode the numerical code for the instruction into a set of commands or signals for each of the other systems.
Increment the program counter so it points to the next instruction.
Read whatever data the instruction requires from cells in memory (or perhaps from an input device). The location of this required data is typically stored within the instruction code.
Provide the necessary data to an ALU or register.
If the instruction requires an ALU or specialized hardware to complete, instruct the hardware to perform the requested operation.
Write the result from the ALU back to a memory location or to a register or perhaps an output device.
Since the program counter is (conceptually) just another set of memory cells, it can be changed by calculations done in the ALU. Adding 100 to the program counter would cause the next instruction to be read from a place 100 locations further down the program. Instructions that modify the program counter are often known as "jumps" and allow for loops (instructions that are repeated by the computer) and often conditional instruction execution (both examples of control flow)
It is noticeable that the sequence of operations that the control unit goes through to process an instruction is in itself like a short computer program - and indeed, in some more complex CPU designs, there is another yet smaller computer called a microsequencer that runs a microcode program that causes all of these events to happen.
Adapted from : Wikipedia.org
Computer’s History
Computer is true newly sounded so scream at this last several years, exactly at mid-20th century ( around 1940 – 1945 ), but do you know that the prototype of computer ( computing device ) already started for centuries ago.
According to the history, the first device to computing is made by Chinese, the name of the device is Abacus (which dates from about 150-100 BC), and than after that many devices are pop out.
The end of the middle Ages saw a re-invigoration of European mathematics and engineering, and Wilhelm Scihkard's 1623 device was the first of a number of mechanical calculators constructed by European engineers. However, none of those devices fit the modern definition of a computer because they could not be programmed.
In 1801, Joseph Marie Jacquard made an improvement to the textile loom that used a series of punched paper cards as a template to allow his loom to weave intricate patterns automatically. The resulting Jacquard loom was an important step in the development of computers because the use of punched cards to define woven patterns can be viewed as an early, albeit limited, form of programmability.
At industrial revolution in 19th centuries, start to be recognize two factory tools system (1812), machine that operated by human and by a machine language.
In 1837, Charles Babbage was the first to conceptualize and design a fully programmable mechanical computer that he called "The Analytical Engine". Due to limited finances, and an inability to resist tinkering with the design, Babbage never actually built his Analytical Engine.
After long process, the first generation computer was made in 1942. At this generation computer is really huge, his weight until 30 ton. Its caused by the primary component at this computer is vacuum tube ( electronic vacuum tubes ). Example of this generation is ENIAC ( electronic numerical integrator and calculator ).
The second generation of computer is pop out in 1959. At the second generation, transistor and magnetic core storage were begin used. Computer at this generation is not common heat than generation before. Some examples of this generation are IBM series 1400, 1401, 1600, and series 7070-7090.
At the third generation, the primary component that was used is Integrated Circuit ( IC ).
Inside this IC there is millions transistors that compacted, the example is IBM S/370.
Along with the growth of epoch, start at 1971, the computer scientist was began compacted millions of IC that we call Microprocessor. This computer is the fourth generation.
Now some people said that we already entered in the fifth generation, because in the modern computer now there is new components.
Computer, what is it ?
According to language, computer based from Computare that have means is calculate.
In Modern meaning computer is a machine that can do the data manipulation according to a list of instruction. To do that, computer need something helps that we call programs.
From other People computer maybe have different meaning, its depend on their needed with the computer.
From some expert writer in computer, they have means :
1. Robert H B ( Computer Annual )
Computer is an electronic that can do some work :
- Receive input
- Input processing according to their program
- Saving commands and result of from processing
- Providing output in information form
2. Donald H Sanders ( Computer Today )
Computer is electronic system that quickly and precisely for data manipulation.
3. V. Carl Hamacher, Zvonko G. Vranesic, Safwat G. Zaky ( Computer Organization )
Computer is a quickly electronically calculating machine, can input digital information, processing according to their program that their saving.
4. William M Fuori ( Introduction to the computer : The tools of business )
Computer is a data processor that can do big calculation and quickly, including arithmetic or logical operation, without human intervene ( in processing result )