Computer Organization multiple Choice Questions - Set 05 - ObjectiveBooks

Computer Organization multiple Choice Questions - Set 05

Practice Test: Question Set - 05


1. When a word is to be written in an associative memory, address has got to be given.
    (A) True
    (B) False

2. When two equal numbers are subtracted, the result would be ______and not________.
    (A) +ZERO, -ZERO
    (B) ZERO, ZERO
    (C) +ZERO, ONE
    (D) ONE, ZERO

3. A ________development system and a/an _______are essential tools for writing large assembly language programs.
    (A) Assembler, Microprocessor
    (B) Microprocessor, Microprocessor
    (C) Microprocessor, assembler
    (D) None of these

4. In an operation performed by the ALU, carry bit is set to 1 if the end carry C 8 is ________. It is cleared to 0 (zero) if the carry is _________.
    (A) Zero, one
    (B) One, zero
    (C) One, one
    (D) None of the above

5. 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

6. 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

7. A combinational logic circuit which sends data coming from a single source to two or more separate destinations is
    (A) Decoder
    (B) Encoder
    (C) Multiplexer
    (D) De-multiplexer

8. In which addressing mode the operand is given explicitly in the instruction
    (A) Absolute
    (B) Immediate
    (C) Indirect
    (D) Direct

9. A stack organized computer has
    (A) Three-address Instruction
    (B) Two-address Instruction
    (C) One-address Instruction
    (D) Zero-address Instruction

10. A Program Counter contains a number 825 and address part of the instruction contains the number 24. The effective address in the relative address mode, when an instruction is read from the memory is
    (A) 849
    (B) 850
    (C) 801
    (D) 802

11. A page fault
    (A) Occurs when there is an error in a specific page
    (B) Occurs when a program accesses a page of main memory
    (C) Occurs when a program accesses a page not currently in main memory
    (D) Occurs when a program accesses a page belonging to another program

12. The load instruction is mostly used to designate a transfer from memory to a processor register known as________.
    (A) Accumulator
    (B) Instruction Register
    (C) Program counter
    (D) Memory address Register

13. The time interval between adjacent bits is called the________.
    (A) Word-time
    (B) Bit-time
    (C) Turnaround time
    (D) Slice time

14. A k-bit field can specify any one of________.
    (A) 3k registers
    (B) 2k registers
    (C) K2 registers
    (D) K3 registers

15. Logic gates with a set of input and outputs, is arrangement of________.
    (A) Computational circuit
    (B) Logic circuit
    (C) Design circuits
    (D) Register

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