revision for computer science key terms.

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  • Created by: BlakeJw97
  • Created on: 22-01-18 12:18
MAR
MAR holds the memory location of data that needs to be accessed.
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MDR
is the register in a computer's processor, or central processing unit,
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accumulator
An accumulator is a register for short-term, intermediate storage of arithmetic and logic data in a computer's CPU
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ALU
An ALU is a digital circuit used to perform arithmetic and logic operations.
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CU
is a component of a computer's central processing unit (CPU) that directs the operation of the processor
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clock speed
Clock speed is usually measured in MHz (megahertz, or millions of pulses per second) or GHz (gigahertz, or billions of pulses per second).
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optical storage
is a device that uses the photons in visible light or infrared ( IR ) beams,rather than electric current, to perform digital computations.
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magnetic storage
storage device that uses a magnetization process to write, rewrite and access data. It is covered with a magnetic coating and stores data in the form of tracks, spots and sectors. Hard disks, zip disks and floppy disks are common examples of magnetic
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solid state
Employed in myriad products, including mobile devices, iPods, cameras, laptops and desktop computers, solid state drives (SSDs) are faster than hard disks because there is zero latency (no read/write head to move).
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Other cards in this set

Card 2

Front

is the register in a computer's processor, or central processing unit,

Back

MDR

Card 3

Front

An accumulator is a register for short-term, intermediate storage of arithmetic and logic data in a computer's CPU

Back

Preview of the back of card 3

Card 4

Front

An ALU is a digital circuit used to perform arithmetic and logic operations.

Back

Preview of the back of card 4

Card 5

Front

is a component of a computer's central processing unit (CPU) that directs the operation of the processor

Back

Preview of the back of card 5
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