Test Series - computer fundamental

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Test Number 29/95

Q: Computer has a built-in system clock that emits millions of regularly spaced electric pulses per _____ called clock cycles.
A. second
B. millisecond
C. microsecond
D. minute
Solution: The regularly spaced electric pulses per second are referred to as the clock cycles. All the jobs performed by the processor are on the basis of clock cycles.
Q: It takes one clock cycle to perform a basic operation.
A. True
B. False
C. ..
D. none
Solution: It takes exactly one clock cycle to perform a basic operation, such as moving a byte of memory from a location to another location in the computer.
Q: The operation that does not involves clock cycles is _________
A. Installation of a device
B. Execute
C. Fetch
D. Decode
Solution: Normally, several clock cycles are required to fetch, execute and decode a particular program.
Installation of a device is done by the system on its own.
Q: The number of clock cycles per second is referred as ________
A. Clock speed
B. Clock frequency
C. Clock rate
D. Clock timing
Solution: The number of clock cycles per second is the clock speed. It is generally measured in gigahertz(109 cycles/sec) or megahertz (106 cycles/sec).
Q: CISC stands for ____________
A. Complex Information Sensed CPU
B. Complex Instruction Set Computer
C. Complex Intelligence Sensed CPU
D. Complex Instruction Set CPU
Solution: CISC is a large instruction set computer. It has variable length instructions. It also has variety of addressing modes.
Q: Which of the following processor has a fixed length of instructions?
A. CISC
B. RISC
C. EPIC
D. Multi-core
Solution: The RISC which stands for Reduced Instruction set computer has a fixed length of instructions. It has a small instruction set. Also has reduced references to memory to retrieve operands.
Q: Processor which is complex and expensive to produce is ________
A. RISC
B. EPIC
C. CISC
D. Multi-core
Solution: CISC stands for complex instruction set computer. It is mostly used in personal computers. It has a large instruction set and a variable length of instructions.
Q: The architecture that uses a tighter coupling between the compiler and the processor is ____________
A. EPIC
B. Multi-core
C. RISC
D. CISC
Solution: EPIC stands for Explicitly parallel instruction computing. It has a tighter coupling between the compiler and the processor. It enables the compiler to extract maximum parallelism in the original code.
Q: MAR stands for ___________
A. Memory address register
B. Main address register
C. Main accessible register
D. Memory accessible register
Solution: The MAR stands for memory address register. It holds the address of the active memory location.
Q: A circuitry that processes that responds to and processes the basic instructions that are required to drive a computer system is ________
A. Memory
B. ALU
C. CU
D. Processor
Solution: The processor is responsible for processing the basic instructions in order to drive a computer. The primary functions of a processor are fetch, decode and execute.

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