Operating System

allows anyone to decode the transmission

allows only the correct sender to decode the data

allows only the correct receiver to decode the data

does not encode the data before transmitting it

is a hardware memory device which denotes the location of the current instruction being executed.

is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.

contains the address of the memory location that is to be read from or stored into.

contains a copy of the designated memory location specified by the MAR after a “read” or the new contents of the memory prior to a “write”.

Network Operating System

Real Time Operating System

Batch Operating System

Unix Operating System

Helps in checking the spelling of Word

Maintain the relationship in Database

Manages the resources of the Computer

Performs the calculations of cells in Excel

to improve disk performance

to handle interrupts

to increase the capacity of main memory

to speed up main memory read operation

Documentation, of a system, should be as clear and direct as possible

Documentation increases the maintenance time and cost

Documentation gives better understanding of the problem

All of the above

is a hardware memory device which denotes the location of the current instruction being executed.

is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.

contains the address of the memory location that is to be read from or stored into.

contains a copy of the designated memory location specified by the MAR after a “read” or the new contents of the memory prior to a “write”.

A machine language

An assembly language

A high-level language

None of the above

is used for analyzing paging problems

is used for analyzing device busy problems

is used for analyzing control-unit busy problems

is only shown on real-time displays

block

dispatch

wake up

timer run out