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1.1 SYSTEM DIAGRAM (FETCH-DECODE-EXECUTE (FETCH (CU USES ADDRESS BUS TO…
1.1 SYSTEM DIAGRAM
System Clock
Regulates the rate at which the CPU runs; Higher clock speed = more instructions executed per secind: MHz orGHz
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ADDRESS BUS
The address bus carries the address of the piece of memory or I/O device to be read from or written to. It is a unidirectional bus, which is to say that data travels only one way; from the CPU to memory. .
DATA BUS
A data bus can transfer data to and from the memory of a computer, or into or out of the central processing unit (CPU) that acts as the device's "engine..
MAIN MEMORY
Primary storage, also known as main storage or memory, is the area in a computer in which data is stored for quick access by the computer's processor. The terms random access memory (RAM) and memory are often as synonyms for primary or main storage
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FETCH-DECODE-EXECUTE
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DECODE 1
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CHECKS LOAD AGAINST INSTRUCTION SET AND WORKS OUT IT NEEDS TO GET CONTENTS OF MEM LOCATION 4 INTO ACCUMULATOR
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