SLR1.1 Systems Architecture - Computer Science

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  • Created by: LC567
  • Created on: 17-05-24 17:54
CPU
Central Processing Unit – processes all operations
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Fetch-decode-execute cycle​
Fetch- retrieve the next instruction and take it back to the CPU​

Decode- Find out what the instruction is telling it to do​

Execute- Perform the instruction
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ALU​
Arithmetic Logic Unit- Performs arithmetic calculations and makes logical decisions.
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CU
Control Unit- sends signals to control how data is moved around in the CPU
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Cache
Frequently used instructions and data stored closer to the CPU than RAM where it is easier and faster to access.
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Register
Tiny and super fast pieces of onboard memory with a specific purpose inside of the CPU
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MAR
Memory Address Register – Holds the addresses of where data is to be fetched or stored
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Von Neumann architecture
A method based on the stored program concept. Instruction data and memory data are held in the same memory in binary form.
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MDR
Memory Data Register- Holds the data fetched from or to be written to memory.
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Program counter
PC – Holds the address of the next instruction in memory
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Accumulator
AC- Holds the results/answers of calculations
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Clock speed
The speed of a computer, stated as cycles per second
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Cache size
The size of the temporary storage of data and instructions.
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Cores
A complete copy of a CPU. The more cores the CPU has, the faster it can work
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Embedded system
A computer system with a specific function within a larger (mechanical) system.
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Other cards in this set

Card 2

Front

Fetch-decode-execute cycle​

Back

Fetch- retrieve the next instruction and take it back to the CPU​

Decode- Find out what the instruction is telling it to do​

Execute- Perform the instruction

Card 3

Front

ALU​

Back

Preview of the front of card 3

Card 4

Front

CU

Back

Preview of the front of card 4

Card 5

Front

Cache

Back

Preview of the front of card 5
View more cards

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