Computer science definitions: Hardware

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  • Created by: jp3louis
  • Created on: 21-02-16 16:58
Read only memory (ROM)
Memory read at high speed but not capable of being changed by program instructions.
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Hardware
The machines, wiring, and other physical components of a computer or other electronic system.
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Central processing unit (CPU)
The brain of the computer. It works very quickly and constantly asks for the next piece of data to process.
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Non - volatile
It keeps data in the computers memory even if the power is cut.
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Volatile
Computer storage which only maintains data when power is added to the device.
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Random access memory (RAM)
The most common type of memory found in a computer. Data can be accessed randomly
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Input
When data is put into the device.
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Output
When data is taken out from the device.
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Single processor
When only one instruction can be run at one time.
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Quad core processors
When 4 instructions can be run at the same time and it is quick.
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Dual processors
When two instructions can be run at the same time.
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Hard disk drive (HDD) or solid state drive (SSD)
The operating system designates part of one of these two as a virtual memory that can be used as RAM as a temporary extension.
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Operating system
A low-level software that supports a computer's basic functions, such as scheduling tasks.
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Hard diskdrive (HDD)
It's a stack of magnetic platters or plates. These platters spin up to 10,000 revolutions per minute. Mechanical arms go across the disk to read the data.
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Other cards in this set

Card 2

Front

The machines, wiring, and other physical components of a computer or other electronic system.

Back

Hardware

Card 3

Front

The brain of the computer. It works very quickly and constantly asks for the next piece of data to process.

Back

Preview of the back of card 3

Card 4

Front

It keeps data in the computers memory even if the power is cut.

Back

Preview of the back of card 4

Card 5

Front

Computer storage which only maintains data when power is added to the device.

Back

Preview of the back of card 5
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