The Central Processing Unit
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Study your notes on The CPU before trying out the following test
- 1.The CPU speed is largely dependent on
- A.
Wordlength, Cache Memory and Clock Speed
- B.
Wordlength only
- C.
Cache Memory and Wordlength only
- D.
Wordlength and Clock Speed only
- 2.A CPU's wordlength is
- A.
The number of bits on that CPU's databus
- B.
The number of bits the CPU can send and receive at a go
- C.
The number of bits the CPU can process at a go
- D.
All of the above
- 3.A CPU register
- A.
Is also known as Cache Memory
- B.
Is also known as accumulator
- C.
Is a temporary storage location
- D.
Can hold a maximum of 32 bits
- 4.Given a 32-bit CPU, how many words are there in 'processor'?
- A.
1
- B.
3
- C.
9
- D.
2
- 5.Which of the following are registers?
- A.
Accumulator
- B.
Program Counter, Instruction Register
- C.
Shift Register
- D.
All of the above
- 6.
- A.
Determines the number of memory locations that can be directly acessed by the CPU
- B.
Carries data between the CPU and main memory
- C.
Is a two-way bus
- D.
All of the above are true
- 7.
- A.
It is a general purpose register
- B.
It is the amount of RAM installed
- C.
It is the number of memory locations that can be accessed by the CPU and is determined by the number of lines on the address bus
- D.
It is the number of bits on the address bus
- 8.What is the function of the Control Unit?
- A.
It is a temporary storage location inside the CPU
- B.
It is a section of CPU responsible for all transfer of data between CPU and other components and for fetching, decoding and executing instructions
- C.
It is a special purpose register
- D.
All of the above
- 9.What is the role of the Program Counter during the Fetch-Execute cycle?
- A.
It holds the next instruction to be executed
- B.
It holds the address of the next instruction to be executed
- C.
It fetches the next instruction
- D.
It decodes instructions
- 10.The databus
- A.
Is a bus connecting CPU and main memory that can carry data between them
- B.
Is a two-way bus
- C.
Both of the above are true
- D.
None of the above are true
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