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Computer Maintenance
Tasks and programs that are necessary for proper computer upkeep including Scandisk and Defrag
1,519 Questions
average kinetic energy, enough energy, reaction rate
How much do a computer cost for a 1995 Oldsmobile aurora?
Depends on which computer you are referring to. You have a climate control module, power-train control module, etc.
The 7200mAh battery will last slightly longer than the 6600mAh one. Generally speaking, the higher the mAh, the longer the battery lasts.
What are the three levels of formatting on a computer?
The three levels of formatting are:
1. Low-level formatting - This is where the sectors and tracks are physically recorded onto the disk. PC builders once had to do this step, but now, nearly all hard drives come low-level formatted. In addition, you won't be allowed to do this, and if you are, the drive will never work again. The drives do not contain the necessary hardware for a successful low-level format. In most cases, if you try to send the low-level format commands, they will be intercepted and just the data areas will be wiped (high-level format), not the control (or "servo") areas nor the boundaries. The main exception here is floppy disks, and they are physically formatted each time they are formatted unless a "quick format" (high level only) is done.
2. Partitioning - This makes the drive recognizable by an operating system and determines how much of the drive will be used for various purposes. For instance, you could have Windows on a partition and Linux on another. But even if you use the entire drive for one thing, you still have to have a partition table with at least one partition.
3. High-level, or "logical" formatting - This simply wipes or at least verifies the data areas and adds the necessary file system structures (FAT, NTFS, Reiser, etc) in an empty state.
A note about "low-level" commands found in the BIOS utility - This only rubs out all the data areas and destroys any partition table and filesystem. It does not actually do a low-level format of the drive (assuming PATA or SATA drives). It only returns the drive back to a condition similar to when it was purchased (with whatever wear it currently has) in that there is no partition table, filesystem, or user data. The low-level formatting is not touched.
Your computer begins to startup but shuts down before fully booting up?
You need to check that your CPU temperature within the normal. The easiest test is you touch the radiator if it becomes very hot, it means you do not have proper ventilation and the cooler has to be repaired or replaced. Also it's a good practice to replaced the thermal paste between the radiator and CPU.
If you have a cooler attached to the chipset (north and south bridges) you need to inspect them too.
What is the geeksquad counter intellegance agent?
The Counter Intelligence Agent is the normal store level employee that typically does the repairs on computers and check-in/check-out of product at a store.
format it with an operative system C.D
What does it mean when your disk defragmenter will not start?
Windows Defrag can stop running if you have a DLL error or registry problems. Re-installation of Windows would probably be the easiest way to fix this. Or, you could download a more powerful and faster defragment tool like UltimateDefrag.
Phil Owner, The ProngHorn Axiom: Self Evident. Necessary.
How do you make your computer fan quieter?
Like a normal fan, your computer fan serves to cool the computer down. If the fan is running loudly, then you may want to consider giving your computer a break for a while to let it cool down - then it will run quieter and faster.
It is also possible that your case has an excessive amount of dust and debris in it. This will cause the fans to often make excessive noise, as well as causing the components to overheat.
If your case IS full of dust, do NOT vacuum it! Vacuums cause static electricity, and it is quite easy to cause irreversible damage to components. If you blow it out with compressed air, make sure you do not spin the fans while you do so, as that could also cause damage to components.
Your best bet is to take it to a shop and have them blow it out.
Other ideasYou could try to get a new power supply which is quieter. They use larger fans that turn slower which are mounted under the power supply rather than in the back. They also use temperature monitoring circuitry and vary the speed of the fan accordingly.If your CPU fan is too loud, you could get a different heat sink and fan set up. Larger and more efficient heat sinks don't need as much air to cool the PC. Then if you have BIOS options and a motherboard that supports this, you can have it to monitor the temperature and vary the fan speed as necessary. Other CPU coolers have manual speed controls. Unless you are overclocking and doing a lot of gaming, then you don't need to turn the fan(s) full blast.
As for any additional case fans, you could switch them for a quieter version, turn the controls down, or take advantage of any dynamic cooling options that your motherboard has.
How do you gain internet access?
Just fix the wire in the back of your computer! if it's a laptop then you probably broke it!
EMachines just beeps but will not start up?
Those beeps are a code telling you whats wrong. Count the beeps Example 1 beep followed by 3 beeps is like a code 13. Then use that number and search for POST codes in the internet POST stands for Power On Self Test. This is only step 1 in diagnosing your problem. Lots of Luck.
The most critical software facilities is the system software particularly the operating system for this systems are the one responsible for the operations and the proper running of all the hardware and the correct execution of tasks given by a program.
One of the best FOSS (Free and Open Source Software) applications for automatically backing up data on Windows is Duplicati. It offers features such as incremental backups, encryption, and support for various storage backends, including network drives. Duplicati's user-friendly web interface makes it easy to configure and manage backups across multiple devices, including laptops and network-attached storage. Additionally, it can schedule backups to run automatically, ensuring your data is consistently protected.
How measure the primary cache memory?
Primary cache memory, often referred to as CPU cache, is typically measured in terms of capacity (e.g., kilobytes or megabytes) and speed (latency). The cache hierarchy includes levels like L1, L2, and L3, with L1 being the fastest and smallest, while L3 is larger but slower. Performance can also be assessed by metrics such as hit rate (the percentage of cache accesses that are successful) and miss rate. These measurements help evaluate the effectiveness of the cache in reducing access times to main memory.
How do you use the anti static wrist wrap?
How to use this by the book would be:
- Make sure your work surface is grounded, to a natural earth ground.
- Make sure the object being worked on is electrically coupled to the work surface (disconnected from any power source, batteries removed, capacitors discharged (CRTs shorted))
- Put the wrist strap on your least dominate arm.
- Connect the ground strap to the work surface.
Whilst it is true to say that the actual cache memory chips are faster than standard memory, this is becoming less and less of an advantage as we move to double data rate ram etc.
Cache just stores copied pieces of your ram
Most of the advantage of cache memory is gained by having the 'right' piece of memory available, this is determined by something called a caching algorythm, so for instance if you were reading a book you'd expect to read the following page next, when reading a computer program you'd expect to read the following memory next. A good caching algorythm would have that area of memory available.
As the cache size grows ever larger the algorythms and indexing required become more and more complicated, thus taking longer to process, and ultimately they get so complicated that there is no gain in performance.
The cache size is chosen for best performance, just making it bigger could in fact give poorer performance.
What advantage is there to having a CPU with on-chip cache?
The CPU cache exists because modern processors are very very fast. If they had to read from main memory every time they performed a read operation, computers would be limited by RAM speeds. By using a very fast cache, the CPU is able to perform a single read to fill in a cache line, then execute its instructions on that entire cache line very efficiently.
There is a cache in between the CPU and main memory for the same reason there is main memory in between the CPU and the hard drive; the CPU is far faster than any storage device on your computer. Without these tiers of increasingly fast (and expensive) memory, we would be limited by HDD read/write speed.
Which area of the hard disk on which Windows 7 is installed on the PC?
The Windows operating system can be located just about anywhere on the drive, but won't be moved though. The system will act like a traffic cop to direct files and programs to proper places.
What should a computer repairman avoid wearing when working on a CRT monitor?
Jewelry and Antistatic wrist strap
