Practice Microprocessor Multiple Choice Questions with Answers Quiz-1

Q.1.

In 8085

P flag is set when the result has even parity
P flag is set when the result has odd parity
P flag is reset when the result has odd parity
P flag is reset when the result has even parity

Q.2.

The five flags inare designated as

Z, CY, S, P and AC
D, Z, S, P, AC
Z, C, S, P, AC
Z, CY, S, D, AC

Q.3.

Whichof the following is the fastest ADC

DUAL SLOPE
successive approximation
flash
single slope

Q.4.

The minimum number of transistors required to implement a two input AND gate is

2
4
6
8

Q.5.

Basic steps of execution of an instruction is

fetch → execute → decode
decode → fetch → execute
execute → fetch → decode
fetch → decode → execute

Q.6.

A microprocessor is ALU

and control unit on a single chip.
and memory on a single chip.
register unit and I/O device on a single chip.
register unit and control unit on a single chip.

Q.7.

Pseudo instructions are basically

false instructions
instructions that are ignored by the microprocessor
assembler directives
instructions that are treated like comments

Q.8.

Which are the four categories of registers:

General‐ purpose register
Pointer or index registers
Segment registers
All of these

Q.9.

The microcomputer system by using the ____device interface

Input
Output
Both a and b
None of these

Q.10.

The ____ place the data from a register onto the data bus.

CPU
ALU
Both a and b
None of these

Q.11.

To locate a data item for storage is

Field
Feed
Database
Fetch

Q.12.

Which of the following terms is the most closely related to main memory?

Non volatile
Permanent
Control unit
Temporary

Q.13.

The secondary storage devices can only store data but they cannot perform

Arithmetic Operation
Logic operation
Fetch operations
Either of the above

Q.14.

What are the three decisions making operations performed by the ALU of a computer?

Greater than
Less than
Equal to
All of the above

Q.15.

Which of the following items are examples of storage devices?

Floppy / hard disks
CD‐ROMs
Tape devices
All of the above

Q.16.

An integrated circuit is

A complicated circuit
An integrating device
Much costlier than a single transistor
Fabricated on a tiny silicon chip

Q.17.

The first microprocessor built by the Intel Corporation was called

8008
8080
4004
8800

Q.18.

Which of the following memories needs refresh?

SRAM
DRAM
ROM
None of these

Q.19.

Which of the following is used as a primary storage device?

Magnetic drum
PROM
Floppy disk
All of above

Q.20.

The language that the computer can understand and execute is called

Machine language
Application software
System program
None of these

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