Acronyms Flashcards

To memorise computer terms

1
Q

PC

A

Programme counter

Is a registar in the cpu ( central processing unit)thats keeps track of the memory addresses.

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2
Q

MAR

A

Memory Address Register

Memory Addresses serve as a map or indexing system, allowing the computers processor to access and manage data stored in its memory efficiently.

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3
Q

MDR

A

Memory Data Register

This is a temporary registar in the central processing unit, thats stores data being transferred to the main memory.

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4
Q

MBR

A

Memory Buffer Register

This is a harware device in the central processing unit transferring information that being stored.

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5
Q

CIR

A

Current Instruction Register

Stores the data, transfers the data

This holds the current instruction to be executed, having been fetched from memory

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6
Q

CPU

A

Central Processing Unit

The Brain of the computer , primary component of the computer , the main processor

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7
Q

ROM

A

Read-only memory

This is permenant memory that stores instruction and data when running and starting a computer.

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8
Q

ALU

A

Arithmetic Logic Unit

This works with binary numbers , this processes arithmetic and logic operations which include numbers and subtraction, addition and multiplication.

This is a digital circuit in the CPU.

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9
Q

Clock

A

Measured in hertz

It is the timing and the speed of the computer , there is a chip inside is the crystal that vibrates at different frequencys within the computer

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10
Q

RAM

A

Random Access Memory

Stores and transfers dara that is currently stored on the computer 4GB of data is it enough for web browsing.

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11
Q

CACHE

A

High-speed memory

This is a stored data , used by servers and apps

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12
Q

ACC

A

Accumulator

This is where arithmetic and logics results are stored in the accumulated memory

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