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This page provide you Computer Organization and Architecture Multiple Choice Question With Answer Which is very useful for many exam of computer science students like Semester, DRDO, ISROM, Banking, Railway etc.
COA MCQs SET-1
Q.1 What is the bit size of the Intel 8080 microprocessor?
- A) 8
- B) 16
- C) 2
- D) None
Q.2 What is the bit size of the Intel 80386 microprocessor?
- A) 8
- B) 16
- C) 32
- D) None
Q.3 What is the bit size of the Intel 8086 microprocessor?
- A) 8
- B) 16
- C) 32
- D) None
Q.4 What is the base (radix) of the Hexadecimal number system?
- A) 8
- B) 16
- C) 32
- D) None
Q.5 What is the typical size of the Instruction Register (IR) in a 16-bit architecture?
- A) 8
- B) 16
- C) 32
- D) None
Q.6 Which software translates programs written in assembly language into machine language?
- A) Compiler
- B) Assembler
- C) Converter
- D) None
Q.7 Which logic gate produces the complement (inverse) of its input?
- A) OR GATE
- B) AND GATE
- C) NOT GATE
- D) None
Q.8 What is the size of the Instruction Register (IR) in an 8086 system?
- A) 32 bit
- B) 16 bit
- C) 8 bit
- D) None
Q.9 What is the standard size of the Data Register (DR) in a 16-bit processor?
- A) 32 bit
- B) 16 bit
- C) 8 bit
- D) None
Q.10 What is the full form of the acronym MAR?
- A) Memory address register
- B) Memory address ram
- C) Memory address rom
- D) None
Q.11 In computer architecture, Cache memory is physically located between?
- A) Disk and CPU
- B) Disk and main memory
- C) Main memory and CPU
- D) None
Q.12 What is the physical nature of cache memory?
- A) Volatile
- B) Non-volatile
- C) Both
- D) None
Q.13 A light pen is classified as which type of device?
- A) Input device
- B) Output device
- C) Both
- D) None
Q.14 What is the full form of the connection standard USB?
- A) Universal serial both
- B) Universal serial bus
- C) Both
- D) None
Q.15 How many primary registers does a basic DMA controller typically contain?
- A) 4
- B) 3
- C) 2
- D) None
Q.16 A group of bits that tells the computer to perform a specific operation is known as a(n)?
- A) Register
- B) Accumulator
- C) Micro operation
- D) Instruction code
Q.17 The actual address used to access a location in main memory is called a?
- A) Physical address
- B) Logical address
- C) Memory address
- D) None
Q.18 A memory unit that is accessed by its content rather than its address is called?
- A) RAM
- B) Virtual memory
- C) Associative memory
- D) None
Q.19 In digital computers, binary subtraction is generally carried out using which method?
- A) 1's complement
- B) 2's complement
- C) 0's complement
- D) None
Q.20 Which basic electronic circuit is used to store exactly one bit of digital data?
- A) Encoder
- B) Decoder
- C) Flip flop
- D) None