Computer Organization and Architecture Quiz | Computer Organization and Architecture Multiple Choice Questions and Answers

Questions
1 Program always deals with
A logical address
B relative address
C physical address
D absolute address

Answer: logical address
2 Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called
A fragmentation
B paging
C mapping
D none of the mentioned

Answer: paging
3 Run time mapping from virtual to physical address is done by
A memory management unit
B CPU
C PCI
D none of the mentioned

Answer: memory management unit
4 Which one of the following is the address generated by CPU?
A physical address
B absolute address
C logical address
D none of the mentioned

Answer: logical address
5 A memory buffer used to accommodate a speed differential is called
A stack pointer
B cache
C accumulator
D disk buffer

Answer: cache
6 CPU fetches the instruction from memory according to the value of
A program counter
B status register
C instruction register
D program status word

Answer: program counter
7 RAM stands for
A Random origin money
B Random only memory
C Random access memory
D None of these

Answer: Random access memory
8 When more than one processes are running concurrently on a system-
A batched system
B real-time system
C multi programming system
D multiprocessing system

Answer: multi programming system
9 Cache memory-
A has greater capacity than RAM
B is f aster to access than CPU Registers
C is permanent storage
D f aster to access than RAM

Answer: f aster to access than RAM
10 Which memory unit has lowest access time?
A Cache
B Registers
C Magnetic Disk
D Main Memory

Answer: Registers
11 Fragmentation is –
A dividing the secondary memory into equal sized f ragments
B dividing the main memory into equal size f ragments
C f ragments of memory words used in a page
D f ragments of memory words unused in a page

Answer: dividing the main memory into equal size f ragments
12 Virtual memory is –
A an extremely large main memory
B an extremely large secondary memory
C an illusion of an extremely large memory
D a type of memory used in super computers

Answer: an illusion of an extremely large memory
13 A time sharing system imply
A more than one processor in the system
B more than one program in memory
C more than one memory in the system
D None of above

Answer: more than one program in memory
14 Interrupts which are initiated by an instruction are
A software
B hardware
C internal
D external

Answer: software
15 The branch logic that provides decision making capabilities in the control unit is known as
A controlled transfer
B conditional transfer
C unconditional transfer
D none of above

Answer: unconditional transfer
16 A stack pointer is
A a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
B a register that decodes and executes 16-bit arithmetic expression.
C The first memory location where a subroutine address is stored.
D a register in which flag bits are stored

Answer: a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
17 A stack is
A an 8-bit register in the microprocessor
B a 16-bit register in the microprocessor
C a set of memory locations in R/WM reserved for storing information temporarily during the execution of computer
D a 16-bit memory address stored in the program counter

Answer: an 8-bit register in the microprocessor
18 Pipelining strategy is called implement
A instruction execution
B instruction decoding
C instruction prefetch
D instruction manipulation

Answer: instruction decoding
19 CPU does not perform the operation
A data transfer
B logic operation
C arithmetic operation
D all of above

Answer: logic operation
20 A complete microcomputer system consists of
A microprocessor
B memory
C peripheral equipment
D all of above

Answer: all of above
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