Top 150+ Solved Computer Organization and Architecture MCQ Questions Answer
Q. A register capable of shifting its binary information either to the right or the left is called a
a. parallel register.
b. serial register.
c. shift register.
d. storage register.
Q. What is the content of Stack Pointer (SP)?
a. Address of the current instruction
b. Address of the next instruction
c. Address of the top element of the stack
d. Size of the stack.
Q. Which of the following is a main memory
a. Secondary memory.
b. Auxiliary memory.
c. Cache memory.
d. Virtual memory.
Q. In Assembly language programming, minimum number of operands required for aninstruction is/are
a. Zero.
b. One.
c. Two.
d. Both (B) & (C) .
Q. The maximum addressing capacity of a micro processor which uses 16 bit database &32 bit address base is
a. 64 K.
b. 4 G
c. both (A) & (B) .
d. None of these.
Q. The memory unit that communicates directly with the CPU is called the
a. main memory
b. Secondary memory
c. shared memory
d. auxiliary memory.
Q. The average time required to reach a storage location in memory and obtain itscontents is called
a. Latency time.
b. Access time.
c. Turnaround time.
d. Response time.
Q. A successive A/D converter is
a. a high-speed converter.
b. a low speed converter.
c. a medium speed converter.
d. none of these.
Q. When necessary, the results are transferred from the CPU to main memory by
a. I/O devices.
b. CPU.
c. shift registers.
d. none of these.
Q. A combinational logic circuit which sends data coming from a single source to twoor more separate destinations is
a. Decoder.
b. Encoder.
c. Multiplexer.
d. Demultiplexer.
Q. In which addressing mode the operand is given explicitly in the instruction
a. Absolute.
b. Immediate .
c. Indirect.
d. Direct.
Q. A stack organized computer has
a. Three-address Instruction.
b. Two-address Instruction.
c. One-address Instruction.
d. Zero-address Instruction.