Question # 1

The accuracy of the floating point numbers representable in two 16 bit words of a computer is approximately

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10 digits

6 digits

9 digits

All of above

Which is directly understood by the computer without translation program.

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Machine language

Assembly language

High level language

None of above

Distributed data processing configuration where all activates passes through a centrally located computer is.

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Ring network

Spider network

Hierachicar network

Data control network

When did IBM introduce the 20286 based PC/AT.

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1982

1984

1985

1989

An output device that uses words or messages recorded on a magnetic medium to produce audio response is.

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Magnetic tape

Voice response unit

Voice recognition unit

Voice band

Latency time is.

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Time to spin the needed data under head

Time to spin the needed data under track

Time to spin data under sector

All of above

What was the nick name of the computer used by the Americans in 1952 for their H-bomb project.

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ENIAC

EDSAC

MANIAC

UNIVAC

Which of the following are considered to be video component.

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Resolution

Color depth

Refresh rate

All above

What are the three decisions making operations performed by the ALU of a computer.

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Grater than

Less than

Eual to

All of the above

Which of the following is a secondary memory device.

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Key board

Disk

ALU

All of above

Data communications involving telegraph lines uses.

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Simplex lines

Wideband channels

Narrowbarid channels

Dialed service

In the third generation of computers

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Distributed data processing first became popular

An operating system was first developed

High level procedural language were first used

Online real time system first become popular

The first firm to mass-market a microcomputer as a personal computer was

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IBM

Super UNIVAC

Radio Shaks

Data general Corporation

The data recording format in most of the modern magnetic tape is

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7-bit ASCII

7-bIt EBCDIC

8-bit ASCII

8-bit EBCDIC

IBM 7000 digital computer.

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Belongs to second generation

Uses VLSI

Employs semiconductor memory

Has modular constructions

What is the number of read write heads in the drive for a 9 trac magnetic tape.

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9

16

18

27

Which of the following is not an input device.

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OCR

Optical scanners

Voice recognition device

COM

The ALU of a computer normally contains a number of high speed contains a number of high speed storage element called.

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Semiconductor memory

Registers

Hard disks

Magnetic disk

Bill Gates is more well knonw as

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The CEO of apple Macintosh

The CEO of IBM

The owner of Microsoft corporation

The inentor of the personal computer

A characteristic of card system is.

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Slowness in processing data

Using cards as record of transactions

Needing a larger DP staff

All of the above

Digital computer is a computer.

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That works with discrete quantities.

That works with analog quantities

Botha A and B

None

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