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WorksheetsThe CPU
Total questions: 10
Worksheet time: 14mins
It is the job of the (a) to decode instructions and manage other parts of the computer system.
While running computers continually perform the (a) , (b) , (c) cycle.
(a) are (b) , but super fast pieces of memory located in the (c) .
Categorise these computer components:
MDR
MAR
PC
ACC
CU
ALU
PDR
CSR
In terms of registers, the PC is short for:
(a)
Match these acronyms with their meaning.
Arithmetic Logic Unit
ALU
Memory Data Register
PC
CU
MAR
Program Counter
MDR
Memory Address Register
Control Unit
Operations such as addition are carried out in the:
ALU
ACC
MDR
CU
Match these registers with their role.
Stores the result of instructions such as addition.
ACC
Stores data / instructions just fetched from memory OR about to be written to memory.
ALU
Not a register
PC
Stores the location in memory where data is being fetched from OR being written to.
MDR
Stores the location of the next instruction to be fetched.
MAR
Put these actions in order:
The instruction is fetched from memory.
The instruction is decoded to determine how to carry it out.
The instruction is carried out.
The result of the instruction is stored in the ACC or back in memory.
A CPU with a higher Clock Speed, will be able to carry out more FDE cycles per second.
TRUE
FALSE
