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Computer Maintenance
Tasks and programs that are necessary for proper computer upkeep including Scandisk and Defrag
1,519 Questions
What is the function of instruction register?
The Instruction Register (IR) stores the instruction currently being executed. In simple processors each instruction to be executed is loaded into the instruction register which holds it while it is decoded, prepared and ultimately executed.
How do you restore deleted files from hard drive?
Use Recycle bin; if you already emptied that or its not there, then there is no other way.
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If you haven't rebooted yet THERE IS A WAY, you can use a free third party software like "undelete".
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Rebooting has nothing to do with it. The more you use the drive after deleting the file, the more likely the file will not be recoverable. When you 'delete' a file the space just gets marked as 'available' for being overwritten. The file actually stays out there until another file gets written over the top of it. If you google for 'undelete' you will find plenty of programs that are able to attempt a recovery. I'm not going to promote a specific one here.
I have managed to recover files for people. Just be warned that the file might only be partially recoverable (like the top half of a jpeg photo with the rest corrupted) and that the partially recovered file might not even be readable/viewable. Also these recovery programs should be installed to a separate drive and the files you are trying to recover should also get saved to a different drive. That way you won't ruin the file you are trying to recover.
Why your computer shows high memory usage?
The memory usage might be high because you have a lot of programs or tasks running in the background of your PC. To fix this right click your task bar and hit "Task Manager". From there go to "Performance" and see what is draining your memory. You will be able to end whatever program it might be from there.
How do you remove thermal paste?
Usually you should use an alcoholic wipe (try your first aid kit), but a baby/wet wipe and kitchen role to dry would work.
What was the persons name who invented computers?
ENIAC was conceived and designed by John Mauchly and J. Presper Eckert of the University of Pennsylvania.
The first computer like ours first was invented by Charles Babbage.
Approximately 35,000 B.C
A small piece of the fibula of a baboon, marked with 29 clearly defined notches, may rank as the oldest mathematical artefact known. Discovered in the early seventies during an excavation of the Border Cave in the Lebombo Mountains between South Africa and Swaziland, the bone has been dated to approximately 35,000 B.C. In a description of the bone, Peter Beaumont, an archaeologist who has done extensive work on Border Cave, has noted that the 7.7 cm long bone resembles calendar sticks still in use today by Bushmen clans in Namibia.
- from The oldest mathematical artefact by Bogoshi, Naidoo, and Webb
The abacus was probably invented in the Middle East. In the West, from early Roman times, users calculated with a "table abacus" that involved manipulating coin-like discs, or "jetons," on lines drawn on a table or cloth. The table abacus remained in use in parts of Britain and northern Europe until the late 1600s.
In the East, several Asian civilizations used a technique similar to the table abacus until about 1200 AD when the more familiar wire and bead abacus was created in China. As late as 1946, the US Army newspaper Stars and Stripes sponsored a contest pitting a Japanese abacus against an electric calculator. The abacus won.
-Computer History Museum
1623
William Schickard produced the first known mechanical calculator in 1623 while a professor at Germany's Tübingen University
-Computer History Museum
1860
Charles Babbage developed the "Difference Engine," a mechanical device that could perform error-free calculation of polynomial functions. He completed only a small model before the British government withdrew funding, forcing him to abandon the project. Soon after, Swedish scientists Georg and Edvard Scheutz would complete a working version.
-Computer History Museum
1936
Konrad Zuse developed functioning program-controlled computing machinery as early as 1936 and went on to form a successful European computer business in the 1950s
-Computer History Museum
How can you check avable memory?
go to my computer right click the drive go to properties and it will show you the free space.
Which connecton type supports upto 127 peripherals in a single connections?
Theoretically, you can use a USB port to connect up to 127 devices. To do so, you would need to use hubs. The problem with using hubs is that they count as devices. Thus if a hub has 4 sockets, it counts as 5 of the 127 devices.
puke ng ina mo
Why does your computer delete everything when it turns off?
Everything your computer uses while it's on is stored in the computer's RAM ( Random Access Memory). The Operating system loads programs into the memory from the Hard Drive. Anything important is saved back to the hard drive and the computer shuts down, removing everything from the RAM until the next time you turn the computer on
How can you recover files deleted from your recycle bin?
To resolve this issue in Windows Vista, follow these steps: # Click Start, and then click Control Panel. # Click Appearance and Personalization, click Personalization, and then click Change desktop icons. # Click to select the Recycle Bin check box, and then click OK.
To resolve this issue in Windows XP
1. Right-click an empty area of your desktop
2. Select Properties
3. Click the Desktop tab
4. Click the Customize button
5. Click Restore Default
6. Exit all windows and restart your computer
Your laptop screen doesnt work what should you do?
There are some likely causes:
The screen illumination may have failed. If you can see a very faint image on the screen, that is the likely problem.
It may be the video driver chips that have failed. Try to connect an external monitor to the VGA port. You will need to enable the external port using one of the function keys (take a look in your manual to confirm how to do this). If the external screen doesn't work, it is possible that the driver chips have failed.
There are many companies that can assist with diagnosis and parts to help with a repair.
List the symptoms that indicate that a motherboard or processor is failing?
Some of the symptoms that indicate a motherboard is failing are: a. The system begins to boot but them powers down b. An error message displays during the boot. Investigate this message c. The system becomes unstable, hangs, or freezes at odd times. d. Intermittent Windows or hard drive errors occur. e. Components on the motherboard or devices connected to it don’t work.
How do you stream video from a computer to a TV?
Do you want to watch broadcast HDTV on your laptop, or are you wanting to watch archived HDTV shows streaming from a site like NetFlix? To use NetFlix, you don't need any special equipment but you do need to have a good broadband connection that can stream HD content. If you actually want to receive broadcast TV on your PC from an over the air broadcast using an antenna, you might consider a product similar to the TBS 5980 USB TV box with CI slot. This is a simple USB interface that allows you to use your PC as a television.
Does your computer need quicktime?
certain videos will only play with quicktime. its always good to have any media player that you can on your computer, just in case you need one of em.
Why system beeps when you start?
Hi
The beeps sounds specify the error when the Bios fails the Post test (when your computer starts up).
Check out http://bioscentral.com for beep codes for the different Bios.
Abdul (CSC South Africa)
How much RAM can you install in a computer with an Intel Pentium III 450 MHz processor?
That will depend more on the motherboard and chipset used than the processor. Motherboards of that era would probably support between 256 and 768 MB of RAM, Most likely, the largest size modules you can use is 256 MB, so multiply that by the number of RAM slots and you'll have agood idea of how much your board supports.
How do you use all the core processors in a quad core computer?
Well, you can buy quad core processors (just GOOGLE Quad Core) but
whether or not it will be compatible with your current computer is something
you'll have to take up with the manufacturer.
Alternatively, you can buy a new computer.
What function key do you press during boot up to start Windows 98 in Safe mode?
Just after the POST diagnostics and memory count, start pressing the F8 key
In what format are manuals usually provided?
Manuals are usually provided via PDF (Portable Document Format).
Restoring the computer to it's original factory settings will surly fix your problem. To do this all you have to do is restart the computer and enter the computer settings by pressing F8 or whatever your computer settings are. Then change the restore settings to "restore to factory settings". You may want to backup your important files. Another way to fix your problem is to download AVG as it is a free anti-virus program.
Why is it important to keep client information?
it is irritating for clients to provide their phone number or address over and over again and wastes time. it is also important to help identify clients and verify their identity.
