Functional Units of a Computer MCQ’s

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This set of Computer Architecture Multiple Choice Questions & Answers (MCQs) focuses on “Functional Units of a Computer”.

1. The 8-bit encoding format used to store data in a computer is ______
a) ASCII
b) EBCDIC
c) ANCI
d) USCII

2. A source program is usually in _______
a) Assembly language
b) Machine level language
c) High-level language
d) Natural language

3. The ______ format is usually used to store data.
a) BCD
b) Decimal
c) Hexadecimal
d) Octal

4. Which memory device is generally made of semiconductors?
a) RAM
b) Hard-disk
c) Floppy disk
d) Cd disk

5. The ALU makes use of _______ to store the intermediate results.
a) Accumulators
b) Registers
c) Heap
d) Stack

6. ______ are numbers and encoded characters, generally used as operands.
a) Input
b) Data
c) Information
d) Stored Values

7. The small extremely fast, RAM’s are called as _______
a) Cache
b) Heaps
c) Accumulators
d) Stacks

8. The control unit controls other units by generating ___________
a) Control signals
b) Timing signals
c) Transfer signals
d) Command Signals

9. The Input devices can send information to the processor.
a) When the SIN status flag is set
b) When the data arrives regardless of the SIN flag
c) Neither of the cases
d) Either of the cases

10. The I/O interface required to connect the I/O device to the bus consists of ______
a) Address decoder and registers
b) Control circuits
c) Address decoder, registers and Control circuits
d) Only Control circuits

11. ______ is generally used to increase the apparent size of physical memory.
a) Secondary memory
b) Virtual memory
c) Hard-disk
d) Disks

12. ______ bus structure is usually used to connect I/O devices.
a) Single bus
b) Multiple bus
c) Star bus
d) Rambus

13. To reduce the memory access time we generally make use of ______
a) Heaps
b) Higher capacity RAM’s
c) SDRAM’s
d) Cache’s

14. MFC stands for ___________
a) Memory Format Caches
b) Memory Function Complete
c) Memory Find Command
d) Mass Format Command

15. The time delay between two successive initiations of memory operation _______
a) Memory access time
b) Memory search time
c) Memory cycle time
d) Instruction delay

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