Computer Science Revision 08/05/2025 Flashcards
(8 cards)
1
Q
ALU
A
Arithmetic Logic Centre. It does the arithmetic in a CPU.
2
Q
Control Unit
A
The Control Unit sends signals to control how data moves around the CPU.
3
Q
The Cache
A
The Cache provides fast access to frequently used instructions and data.
4
Q
The Registers
A
They are tiny, super fast pieces of on-hand memory in the CPU. Each has a specific purpose.
5
Q
The Clock
A
It synchronises all of the CPU’s movements.
6
Q
The Bus
A
High speed internal connection between components.
7
Q
MAR (Memory Address Register)
A
Stores the address of the data to be fetched from; or the address of where the data is stored.
8
Q
PC (Program Counter)
A
Stores the address of the next instruction to be fetched from memory.
