Introduction to Computers

The use of computer work stations to send and receive messages is known as

• electronic funds transfer

• electronic message switching

• electronic mail

• electronic publishing

Protecting the data from unauthorized access is called

• data inaccessibility

• data encryption

• data security

• data validity

What is true about supercomputers

• they can fit on a single small chip

• they are found at thousands of places around the world

• they cost only few thousand rupee

• they can process billions of operations in a second

In a distributed computer system

• there are many computers and terminals

• the task is executed by a number of processors

• the task is distributed throughout the system

• All of the above.

A computer programming language often used by children is

• LOGO

• PILOT

• BASIC

• PASCAL

The linking of computers with a communication system is called

• networking

• pairing

• interfacing

• assembling

The software generally used for what-if analysis is related to

• word-processing

• graphics

• database management

• None of the above

Distributed data entry means that data can be

• entered at different locations where it originates

• sent to different locations from a central place

• accessed from different places know as distribution points

• distributed through a network

Software documentation refers to

• anything written about how the software is designed or functions

• the documents which, the user has to sign before using the software legally

• the compatibility of the software with IBM-PC

• None of the above.

If a home computer user wants access to national database networks he/she at least requires

• a microcomputer, a modem, a telephone line

• a microcomputer, a tele-printer, a telephone line

• a microcomputer, communications soft-ware, a telephone line

• a microcomputer, a modem, communications software, a telephone line