computer organization and architecture

1. The microoperation which divides a signed binary number by 2 is :
कौन-सा microoperation signed binary number को 2 से divide करता है?
(UGC NET C.S. December-2023)
A. Circular shift
B. Logical shift
C. Arithmetic shift right
D. Arithmetic shift left

Correct Answer: C

Explanation (EN): Arithmetic shift right shifts all bits to the right while preserving the sign bit thus effectively dividing a signed binary number by 2.

Explanation (HI): Arithmetic shift right सभी bits को right shift करता है और sign bit को preserve करता है जिससे signed number 2 से divide हो जाता है.

2. The three main components of a digital computer system are
डिजिटल कंप्यूटर सिस्टम के तीन मुख्य components कौन-से हैं?
(कंप्यूटर सिस्टम में CPU processing करता है)
A. Memory I/O DMA
B. ALU CPU Memory
C. Memory CPU I/O
D. More than one of the above

Correct Answer: C

Explanation (EN): A computer system consists of CPU for processing

Explanation (HI): memory for storage and I/O devices for communication with external world.

3. Which component of computer act as nervous system?
कंप्यूटर का कौन-सा component nervous system की तरह कार्य करता है?
(DSSSB PGT C.S. M/F 11.07.2021)
A. Arithmetic Logic Unit
B. Input unit
C. Control unit
D. Storage unit

Correct Answer: C

Explanation (EN): Control unit controls and coordinates all operations of the computer similar to nervous system in human body.

Explanation (HI): Control unit सभी operations को नियंत्रित करता है और मानव शरीर के nervous system की तरह काम करता है.

4. Which of the following is not valid with reference to message passing interface (MPI)?
निम्न में से कौन-सा MPI के संदर्भ में सही नहीं है?
(UGC NET C.S. June-2015 (Paper-II))
A. MPI can run on any hardware platform
B. The programming model is a distributed memory model
C. All parallelism is implicit
D. MPI_Comm_size returns total number of processes

Correct Answer: C

Explanation (EN): MPI uses explicit parallelism where programmer defines communication so statement that all parallelism is implicit is incorrect.

Explanation (HI): MPI में parallelism explicit होता है इसलिए 'all parallelism is implicit' गलत है.

5. Match List-I with List-II:
List-I को List-II से मिलाइए:
(UGC NET C.S. December-2019 (Paper-II))
A. A-4 B-3 C-2 D-1
B. A-4 B-3 C-1 D-2
C. A-3 B-4 C-1 D-2
D. A-3 B-4 C-2 D-1

Correct Answer: A

Explanation (EN): Correct matching is Micro operation-Elementary operation Micro programmed control unit-Control Memory Interrupts-Improve CPU utilization Micro instruction-Specify micro operations.

Explanation (HI): सही मिलान है Micro operation-Elementary operation Micro programmed control unit-Control Memory Interrupts-CPU utilization सुधार Micro instruction-Micro operations specify करता है.

6. Microprogramming is a technique for:
Microprogramming किसके लिए एक technique है?
(CGPSC C.S. 2020 Set-A)
A. Programming input or output routines
B. Programming the microprocessor
C. Writing small programs
D. Programming the control steps of a computer

Correct Answer: D

Explanation (EN): Microprogramming is used to implement control unit by defining control steps using microinstructions stored in control memory.

Explanation (HI): Microprogramming का उपयोग control unit को implement करने के लिए होता है जिसमें microinstructions control memory में store रहती हैं.