8085, 8086 Microprocessor Multiple Choice Questions and Answers Pdf - 1

Question: 1

Pseudo-instructions are basically

(A) instructions that are treated like comments

(B) false instructions

(C) instructions that are ignored by the microprocessor

(D) assembler directives

Question: 2

A micro controller differs from a microprocessor in terms of

(A) memory configuration and instruction decoding

(B) memory configuration and I/O interfaces

(C) I/O interfaces and instruction decoding

(D) data bus width and clock speed

Question: 3

Direction flag is used with

(A) arithmetic instructions

(B) branch instructions

(C) string instructions

(D) stack instructions

Question: 4

The clock speed of 8085 is

(A) 1 MHz.

(B) 1 KHz.

(C) 3.2 KHz.

(D) 3.2 MHz.

Question: 5

HLT opcode means

(A) load accumulator with contents of register

(B) end of program

(C) load data to accumulator

(D) store result in memory