Microprocessor and Microcontroller

What is true about microprocessor?

• Microprocessor is a controlling unit of a micro-computer

• It is fabricated on a small chip capable of performing ALU (Arithmetic Logical Unit) operations

• It also communicate with the other devices connected to it.

• All of the above

The __________ controls the flow of data and instructions within the computer.

• control unit

• register array

• accumulator

• ALU

Which determines the number of operations per second?

• Bandwidth

• Word Length

• Clock Speed

• Operations Speed

The number of bits processed in a single instruction is known as ?

• Instruction Set

• Bandwidth

• Bandspeed

• Instruction Speed

What is false about microprocessor?

• The microprocessor is of small size chip, hence is not portable.

• microprocessor chips are available at low prices

• microprocessors are versatile

• failure rate of an IC in microprocessors is very low

In 8085, 16-bit address bus, which can address upto?

• 16KB

• 32KB

• 64KB

• 128KB

There are _______ general purpose registers in 8085 processor

• 5

• 6

• 7

• 8

8086 Microprocessor supports _______ modes of operation.

• 2

• 3

• 4

• 5

8086 can access up to?

• 512KB

• 1Mb

• 2Mb

• 256KB

What is meant by Maskable interrupts?

• An interrupt which can never be turned off.

• An interrupt that can be turned off by the programmer.

• Both the answers

• none of these