Flashcards
Hardware Compuing
Cards in this deck (13)
- 1What is RAM?Random Access Memory is the main memory of the computer which stores data, applications and the operating system when its in use.
- 2Disadvantages of RAMWhen the power is turned off it looses all its data.
It is quite expensive so computers don include too much of it - 3Advantages of RAMIt is silent
Power efficient, uses led power than a disk drives. Reduces CO2 emission's and extends battery life
It is fast - 4What is Cache Memory?Special high speed memory used by a computer.
- 5Advantages of Cache MemoryFaster than main memory
Consumes less access time as compared to main memory
Stores the program that can be executed within a short period o time
Stored data for temporary use - 6Disadvantages of Cache Memory?Limited capacity
Very expensive - 7What's a CPU?Central processing unit of the computer containing the control unit , ALU and cache memory
- 8What is Clock speed/ clock chip?The electronic device in a computer that controls the timing of signals. Measured in Hertz (Hz)
- 9Advantages of Clock speed?Makes the CPU faster. The faster the clock speed the better the performance because it executes the instructions faster.
- 10What is virtual memory?A section of the hard disk used as if it were RAM to supplement the amount of main memory available to the computer. Used when there's not enough main memory
- 11Advantages of Virtual MemoryYou can run more applications at once
You can run larger applications with less real RAM
You don't have buy more memory RAM - 12Disadvantages of Virtual MemoryApplications run slower
It takes more time to switch between applications
Less hard drive space for your use - 13What is ROM?
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- Flashcards on Hardware Compuing, created by 11mturpin on 07/10/2015.
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- 11mturpin · Oct 2015
- Updated
- Feb 19, 2016
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