Question # 1

Which input device is often attached to laptop computers.

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trackball

inscriber

graphics display

wand reader

Real time system

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are effective in process control

process transactions by means of direct-access devices

process data in manner similar to batch-access devices

are not possible to achieve control

The ability to return a change disk record to its original location is called

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magneto optical

rotational delay

updating in place

multimedia

CD-ROM has the same format as

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backup tape

DAT

diskette

audio compact disk

Electron NumericaL integrator and Calculator belongs to the

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first generation digital computer

second generation computers

third generation computers

fourth generation computers

An on-screen picture

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page

NOC

icon

spool

Imaging used what devices to input data?

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scanner

barcode reader

icon

tablet

A storage medium which can not support both direct access and sequential access application is

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magnetic drum

hard disk

magnetic tape

floppy disk

The presence of both data and its related instructions in an object is

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C++

encapsulation

orientation

inheritance

All of the following are Guided Communication media except

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Fiber-Optic Cable

Wire Cable

Coaxial Cable

Satellite-based , Microwave communication

According to absorption law x. (x+y) =

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x

y

1+x

1+y

The central processing unit comprises of

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memory ,VDU and printers

input devices output devices and memory

software arithmetic and logic unit,and control unit

software,hardware,and power supply unit

Most mainframe computers are basically.

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4 bit machines

8 bit machines

32 bit machines

16 bit machines

________ pointing device uses the sensors to detect the touch of a finger

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Touchscreen

Light Pen

Pointing Stick

Joystick

______input device is not a pointing device

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Scanner

Pointing Stick

Digitizing Tablet

Touchpad

The first computer to use electrical power was developed by.

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Herman Hollerith

Thomes J. Watson

John V. Atanasoff

Howard Aiken

Raw data is processed by the computer into.

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number sheets

updates

paragraphs

information

How many pairs of computers can simultaneously communicate on Ethernet LAN

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1

3

Multiple

4

The FORTRAN equivalent of the mathematical expression ab/cd is.

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A * B / C * D

A.B / C.D

A * B / (C*D)

A*B/B*D

_______is not component of data communication.

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Medium

Voltage

Decoder

Receiver

In a computer system, which of the following has largest number of mechanical components and thus most unreliable.

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magnetic tape

magnetic drum

floppy disk

printer

Assigning more sector to outer hard disk is called

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zone recording

randomizing

sectoring

data transfer

Communication circuits that transmit data in both directions but not at the same time are operating in.

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Simplex mode

Half duplex mode

Full Duplex mode

None of above

During the development of a program, drawing a flowchart is a means to

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plan the solution

code the program

define the problem

document the problem

The fastest type of ADC is

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time interval

parallel

closed loop

successive

Error messages provided by a compiler are called

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bug

diagnostic

translation

mistakes

A systems analyst would observe the flow of data and interrelations of people within an organization during.

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detail design

preliminary design

systems analysis

a system survey

The most powerful computers are

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Supercomputer

mainframe computers

super minis

super micros

The heart of a digital computer is....

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control unit

memory unit

logic unit

visual display unit

Word is 16 bits is

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65536

64526

32526

34526

For creating and editing legal documents which application package would be most useful?

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Spreadsheet

Word processing

Graphics

Communication

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