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Computer Maintenance
Tasks and programs that are necessary for proper computer upkeep including Scandisk and Defrag
1,519 Questions
What does the disk defragmentation utility do?
It rearranges all the parts of files on a computer so the they are all in one place. This increases the speed of a computer and is easier on the hard drive because it doesn't have to do as many seeks.
What should you consider when doing a back up on your PC?
Consider backing up the whole hard drive, or at least the OS (keep all of the OS together as is, don't copy some parts of it and leave others as this will cause problems) and important stuff. If you don't want to back up the OS, back up your important stuff and create a recovery partition, which your computer manufacturer can help you with.
The steps of installing an operating system?
Answer: This article describes a method to install Windows XP. Before starting, ensure the following: * Have your original Windows XP CD and its product key handy. * Some PCs also come with a second CD that contains various drivers that must be installed after Windows XP has been re-installed. Have this CD handy as well. * Do not connect any peripheral devices (i.e.: printers, webcams, external hard drives, flash drives, etc.) to your PC except for the monitor, mouse and keyboard. The installation process: * Insert the original (not a copy) Windows XP CD into a CD or CD/DVD drive. Within seconds, a menu entitled "Welcome to Microsoft Windows XP" will be displayed. * At this point, simply Restart your PC with the CD still inside the drive and continuously depress the F8 key. * By doing this, a DOS menu will be displayed before Windows XP can be displayed. The DOS menu will provide you with 3 options, namely, (1) Boot from Floppy; (2) Boot from Hard disk and (3) Boot from CD ROM. * At this point, your mouse has been deactivated; therefore, using your keyboard, and in particular, the downward pointing arrow key, move the arrow down to "Boot from CD ROM" and select the "Accept" option. * Keep your eyes glued towards the bottom of your screen. As soon as you see the message "Press any key to boot from CD", immediately depress the Space bar to continue. Note: As I describe the remaining steps, you will occasionally see the message "Press any key to boot from CD" again; however, do not, under any circumstances, depress the Space bar again. In addition, keep the Windows XP CD in the drive until the process of installing Windows XP has been completed. * A system function called "Setup" will now inspect your computer hardware and configuration. * Setup now prepares your computer for the re-installation of Windows XP. * From this menu select "ENTER" to continue. * The system will display a License agreement. Read it, and if you agree, press "F8" to continue; otherwise, press "ESC" if you disagree. * The next step is to delete the partition that your current Windows XP is residing on. Press "D" to delete the selected partition. * Then press "ENTER" if you are sure you want the partition deleted. * Now is your final chance: Press "L" to confirm deletion of the partition. * Now you have to select where to re-install Windows XP. Press "ENTER" to confirm the partition that you want to re-install onto. * Now you need to format the hard drive and NTFS is recommended; however, you can also use FAT32. Make your decision using the arrow keys and press enter. If you are given the choice between a "Quick" format versus a "Full" format, select the "Full" format. Although the "Full" format takes considerably longer to complete, it scans the hard disk for bad sectors and if possible, repairs them. If you choose the Quick format option, the system does not scan the disk for bad sectors. Only use this option if your hard disk has been previously formatted and you are sure that your hard disk is not damaged. * The hard drive will now start to format and if you've selected the "Full" format option, the formatting process can take up to two hours depending on the capacity of the hard disk being formatted as well as the speed of your PC's CPU. * Once formatting has been completed, "Setup" will begin to copy files, which on average, takes approximately 15 minutes. * Setup now initializes the Windows XP configuration. * At some point, you will be prompted to restart Windows XP by pressing "ENTER"; otherwise, Windows will do it itself in 15 seconds. * The system re-boot will recognize that the XP CD is in the drive; do not press any keys; let setup bypass the CD boot. * Windows is now booting. * At this point, the hard disk has been completely formatted and the system starts the process of re-installing Windows XP. The entire process can range between 20 minutes to an hour depending on CPU speed. * At various points during the re-installation process, you will be prompted to enter some information. The system re-activates your mouse each time that it prompts you for information. The information required is general in nature and should not pose any problems for you. * When Windows XP has been installed, you will be prompted to restart Windows XP again. Press "ENTER" to speed up process; otherwise Windows will do it itself in 15 seconds. * The system re-boot will recognize that the XP CD is in the drive; do not press any keys; let setup bypass the CD boot. * Windows will continue loading. * Windows will now adjust your resolution. Click "OK" to continue. * If you are happy with the changes, click "OK"; otherwise, click "Cancel" to return to the old settings. * "Welcome to Microsoft Windows" is now displayed. Click on "Next" to continue. * The remaining prompts will be for information of a general nature and should not cause you any problems. Once you see the familiar "Windows XP" desktop screen, remove the Windows XP CD from its drive. Although Windows XP has successfully been installed, you may have to install various "Driver" programs that are on the second CD that I described at the outset of this article.
How can computers be distinguished from other machines or devices?
The Main difference between a computer and a machine that computer is an intelligent device which has the ability to decide by its own through processing different data analysis while machine is least intelligent and is always waiting for user
BSIT 1y1-5 OLFU
Which file system is specially design to provide more security?
Generally, you are referring to the class of Filesystems known as Cryptographic file systems. A crypto filesystem uses a symmetric algorithm to encode the contents of disk; it requires a special key to be able to use.
Several common filesystems now support a Cryptographic mode.
This question should be two parts one is safety the other common sense. to measure very hi voltage electrical gloves must be used along with an overseeing partner. for low voltage make sure the scale is set to maximum voltage on the meter and scale down
Give five possible questions that should be asked of a user who is experiencing computer problems?
1. Are there any burnt parts or odors?
2. Is the power cord plugged in?
3. Is the power outlet controlled by a wall switch?
4. Is the circuit breaker blown?
5. Are all switches on the system turned on? Computer? Monitor?
defrag 1. Open My Computer. 2. Right-click the local disk volume that you want to defragment, and then click Properties. 3. On the Tools tab, click Defragment Now. 4. Click Defragment
What is the most expensive computer monitor?
I'd say the Eizo 30". It comes with it's own calibrator and stand. The resolution on it is good enough to use it for x rays. That wraparound alienware one is pretty pricey too, but it doesn't have as much y res as the Eizo.
Projectors wise, there's a 4000 pixel projector that Audi use which would be more expensive again.
How does disk Defragmenter work?
Go to Start then all programs, put your mouse on accessories then system tools and click on Disk Defragmenter. It moves around files on your disk so that they are not so spread out so your disk has to spin less.
Do software updates for mac cost money?
Nope.
The only updates that cost money are if a new operating system comes out and you want to upgrade up (just like going from Windows Vista to Windows 7). But all regular updates will automatically update with no cost.
What storage device would be the best used to store a large video project?
Video projects can often grow to quite large file sizes, much larger than working on individual graphic files. It is also important that you are able to read and write to the device quickly, especially if it is your only means of storage. This effectively rules out DVD's and Blu-ray as they are too slow to read/write to for this purpose.
For this reason i would suggest using a high capacity USB Flash Drive. Prices have dramatically decreased and 16GB can be bought relatively cheaply now. Bear in mind that when the project is rendering, there are likely to be large temporary files being created that will significantly increase storage requirements.
If you feel that 16GB is becoming too small then you would need to purchase and external (also portable could be useful if you move between computers) hard disk drive. Again these have become much cheaper lately. Check the compatibility of your computer but if you have USB 3 on your PC try to purchase a USB3 drive as the transfer speed is much faster than USB2.
What are operating systems and utility programs?
OS system software applications are mainly designed to run PC or Mac systems as a whole. Operating systems are the cradle for word processing programs, along with other software applications and media. Utility software, however, is designed to help the OS system run more efficiently and smoothly. Utility software can include disc monitoring and repair tools, along with programs that ensure system drivers are up to date across the board.
How do you repair socket error 12007?
Often related to Microsoft's email clients Live Mail or outlook with a faulty setting in SMTP(outgoing server) settings.
Follow these steps for a solution for most email client problems:
1. Contact your email provider. Example: 123 @ gmail . com = Google, while 123 @ hotmail . com = Microsoft. Get the server details(specially the SSL settings) and cross check your account settings in your email software.
2. Try logging into a web-mail trough your browser if your provider have one to verify your username and password.
3. Reinstall your email client or repair the database for your profile.
( Outlook have a built in software to fix the datafiles named scanpst.exe in C:\Program Files\Microsoft Office\OFFICE12 , you can also do this manually)
4. If none of the above worked: Reset your router, look for virus related software on your PC, check your Firewall and Anti-virus software for anything blocking it before contacting your Internet Service Provider.
If theres still no solution, you really want to fix it and you won't deliver your computer to a technician you should try another email client, diskcheck or reinstall Windows.
Babbage designed 3 machines but built none:
- Difference Engine - This was a machine for calculating polynomial functions by the "method of differences". He had a government contract to design and build a prototype, but he got diverted by ideas for a better machine (Analytical Engine) that could solve a much wider range of problems also he argued repeatedly with his machinist delaying parts. Eventually parliament canceled the contract for nonfulfillment and the project died.
- Analytical Engine - This was an actual general purpose programable digital mechanical computer, but without funding it couldn't be built.
- Difference Engine II - This was a redesigned Difference Engine using concepts from the Analytical Engine, the parts count was reduced by over a factor of 6 thus reducing the cost by a similar factor but with the same calculation ability as the original Difference Engine. Babbage tried to convince the government to fund this, but parliament decided they had wasted enough money on this crackpot already, and without funding it couldn't be built.
Two copies of Difference Engine II have been built by the London Science Museum, to prove that the machine could be built to 1840's machining tolerances and work (a long debated point). Both work as designed computing correct answers. However the machines have a tendency to break difficult to replace parts, so the museums tend to select simple problems to solve that avoid using known broken parts instead of replacing them.
What should you never do when working on a laser printer use a toner vacuum?
When working on a laser printer, you should never use a toner vacuum that isn't specifically designed for toner cleanup. Regular vacuums can create static electricity that may damage sensitive printer components or lead to toner leakage. Additionally, using the wrong vacuum may not effectively contain the fine toner particles, which can be hazardous to your health if inhaled. Always ensure you're using the appropriate equipment for toner maintenance.
List at least 4 things you can do if you receive memory errors during normal operation?
2) Make sure that the chips are seated correctly
3) Make sure that you are using the correct chips for your board
4) Enable boot logging to see if there are any specific errors during the boot process.
Answer 2- Remove and install the module
- Check that you have the right memory modules supported by your MOBO , verify thru CMOS
- Check that you have installed the right module size, as stated in MOBO documentation
- Remove the newly installed memory and check for error, switch memory sockets
- Clean the module edge connectors with a soft cloth or contact cleaner, blow or vacuum dust from memory slots
- Flash BIOS, BIOS might have problems with the new memory
- PG 295/296 Jean Andrews A+ book, good luck! :)
- remove and reinstall the module,
- check that you have the right memory modules supported by your motherboard,
- check that you have installed the right module size as stated in the motherboard documentation,
- and remove the newly installed memory and check whether the error message disappears.
2. Delete unwanted to unused programs or documents so save more memory
3. Defragment your PC/Laptop (will delete unused programs and more folders)
3 Main things.
A battery rating of 4400 mAh means that the battery can nominally produce 550 mA for 8 hours.
Even though it would seem that the battery will produce 4400 mA for 1 hour, it will not actually last that long. By convention, current-time ratings on batteries are normalized to an 8 hour rating.
You can keep answering a bunch of random passwords. (and if you own the laptop, and you forgot your password, you can make a new one.) or if you know the person who owns the laptop, ask them what the password is.
What can you do about a fragmented drive?
A fragmented drive results in slow read and write operations as the files are scattered all over the hard disk. Microsoft Windows provides defragmenter utility to defragment the hard drive. Go to Start --> Programs --> Accessories --> System Tools --> Defragmenter
How do you measure storage or memory size in computers?
There are three types of memory, video, storage and RAM. Storage memory is on your hard drive and is used to store everything that's software or virtual on your computer, such as programs, files, settings, etc. If it's part of your computer and you can't throw it out of the window, it's software. If you throw it out of the window and it comes back, it's a cat. Anyways, video memory is memory that is set aside specifically for usage by your video card or onboard video (this doesn't take any away from your RAM or hard drive). It functions much like RAM. Finally, RAM acts as a scratchpad for your computer, keeping track of everything that's not "finalized" or saved on your hard drive (everything in RAM, by the way, is lost when your computer is turned off). All three are seperate, distinct types of memory, but they are all measured in bytes, kilobytes, megabytes, and gigabytes, or even terabytes! Bytes are the smallest unit of memory. Kilobytes are roughly equivalent to one thousand bytes, about enough to hold one page of typed text. Megabytes are the next biggest amount and, you guessed it, are about equal to one thousand kilobytes. Gigabytes follow in the same fashion (they hold A LOT of information), and so do terabytes. *~Trivia Warning!~*The latin rootgiga means "giant", and tera means "monster"!
So what's good for each type of memory? Ideally, the hard drive should hold the largest amount, followed by RAM and then video memory. Although these amounts constantly change (hey, having 16 MB of RAM used to be impressive), a good hard drive should hold at least 20 GB, probably a lot more if you're into photos, music, and especially videos (some models hold well past 200 GB!). RAM should be at least 1024 MB or above, and video memory varies with what you want to do. If you bought a computer to gun down and frustrate thousands across the globe while making it look like a high quality movie, 512 MB is stellar (even more is probably unnecessary, but FANTASTIC!). However, if you're just using Word, you won't need much at all.
Let's say :
1 bit=1 binary (0s and 1s) digit
1 byte=8 bit
1 kilobyte=1024 bytes
1 megabyte=1024 kilobytes (Sounds like a lot; it isn't really.)
1 gigabyte=1024 megabytes (You could say it's big)
1 terrabyte=1024 gigabytes (Humungous)
In video or tapes, an "exabyte" or "exobyte" is up to about a year straight of recording.
Hope this answers your question thoroughly, and hey, you just might have learned something!
What happens when you uninstall software?
registry entries can be corrupted due to bad installation files or it may not be removed due to which again when you try to install same application again you may encounter error.
this is the major problem concerned with installation and uninstallation.
When should you update your BIOS?
Many times the bios shipped with the motherboard was shipped "before its time". The vendor provides updates from their website that fixes some of these problems. The supplier also updates the bios to support larger hard drives and newer processors and larger memory chips. You may need a bios update to support larger memories, new CPU's, or larger hard drives.
To take advantage of these improvements you need to download the proper bios file and bios flash utility.
If you have a Phoenix, IBM or non AWARD or AMI bios be sure to backup your bios using UNIFLASH (see our FAQs page). If the flash fails your board will be dead and makers such as HP, IBM, Dell and Gateway will not sell you a replacement chip. They will only sell you an entire motherboard for more than the cost of a new computer! With a backup file we can help you recover with just a chip. It is possible we may also be able to locate an AMI or AWARD bios that will work in your board, but in most cases they use boards that have parts missing and do not work with a standard bios from the motherboard maker.
How the computer monitor connected to the computer?
there are 2 monitor plug in inthe back of my dell demension c521. i have always plugged the wires into the bottom connection. it stopped working, ( screen black)so the people i bought it from plugged it into the middle plug in.. computer has a picture now.. but everything looks diffrent and runs diffrently. why would that happen and witch one should i be plugged into? You need a SVGA cable or S-video cable depending on your "monitor out" configuration. Doesn't matter if it is a PC or laptop, Windows or Mac system. Make SURE the SVGA cable is 2-male ends because the computer and monitor EACH have female ends. Visit Best Buy or Fry's Electronics if you are unsure what will work.
Which is the First computer with keyboard and mouse?
the keyboard was around long before the mouse. the mouse didn't come onto it's own until operating systems became gui.
