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Computer Maintenance
Tasks and programs that are necessary for proper computer upkeep including Scandisk and Defrag
1,519 Questions
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.
Why do they say a computer has a computer bug?
from James s huggens website
The Bug
In 1947, Grace Murray Hopper was working on the Harvard University Mark II Aiken Relay Calculator (a primitive computer).
On the 9th of September, 1947, when the machine was experiencing problems, an investigation showed that there was a moth trapped between the points of Relay #70, in Panel F.
The operators removed the moth and affixed it to the log. (See the picture above.) The entry reads: "First actual case of bug being found."
(See the link at the bottom of this page for a much larger version of this picture.)
The word went out that they had "debugged" the machine and the term "debugging a computer program" was born.
Although Grace Hopper was always careful to admit that she was not there when it actually happened, it was one of her favorite stories.
It is actually, on display in the smithsonian i think.
What is the use of registry on a computer?
In a Windows-based computer, the system registry is a place designed for storing all of the settings within Windows and the applications. It is a collection of very important files that Windows needs to even boot. They store where everything is, all the settings, etc. Not all programs are compliant with the registry and may store their settings in private files. The registry was designed for getting away from all the settings file clutter and for having a common place for all settings for every application you use. Windows 3.1 used INI files, and while most versions of Windows will use them, the preferred place is the registry.
What is a safe ambient temperature for your computer?
External case temperature should always be below 27*C (80*F), with the best temperatures around 18*C (65*F). Internal air temperature should be around 40*C (104*F), except for heatsinks, which require lower temperatures.
As long as you're using fans, don't be worried until case air temperature exceeds 55*C(130*F). At this point, both fans and passive coolers will be useless, and only liquid cooling will be able to safely protect your components.
Why do you place the system under a load when you are testing for errors?
You will need a test program (also called a diagnostic) that exercises the functions that are suspected of making errors. You may also have to run this program under a variety of different environmental conditions (e.g. high temperature, low temperature, higher supply voltages, lower supply voltages) to stress the hardware more and increase the chance of finding intermittent errors.
Such testing can often be quite frustrating, I did it on systems that had to operate on full Military temperature range (-54C to +75C) for over a decade and some problems took more than a month of varying test conditions and rerunning tests over and over (even sometimes writing special diagnostics just for that problem) before the cause of the problem could be isolated.
How do you restore your Toshiba satellite l35-s2161 back to factory settings without a recovery CD?
There is a hidden partition on the hard drive with all of the information necessary to restore your laptop.
To access this partition, start with the laptop off.
Press the power button to start your laptop. As soon as you see anything on the screen, press and hold the 0 (zero) key next to the - key on the keyboard for about 5 seconds. When you let go, this should launch the restore program on the hidden partition.
Hope this helps or just go to ezrestorepc.com for any recovery needs including the toshiba ones.
How do you clean an iPad screen?
To clean your iPad screen, never use any type of cleaning solvent such as Windex or similar chemical products. Use only water.
Ideally, use water with a lint free scratch resistant cloth (microfiber is best) to clean your iPad screen by dampening the cloth slightly. Then clean the screen using soft, even strokes.
