Question # 1

Which of the following cable is comprised of two separate insulated copper wires that are twisted?

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Fiber optics

Twisted pair wire

coax

Submarine

Operating System involved by AT&T is

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Macintosh

Unix

OS/2

Windows

In______________communication modes the data communication can take place in only one direction

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Simplex

Half-duplex

Full-deplex

None

Which of the following is Internet Protocol?

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Y25

TCP/IP

PCT/PI

ITTT

Which of the following statement is true in the case of AND gate with input A and B.

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If A and B are applied, there will not be any output

If neither input is applied, there will be an output

If one input is applied there will not be any output

If one input is applied there will be an output

The correct processing unit

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is operated from the control panel

is controlled by the auxiliary storage unit

is controlled by input as it enters the system

controls all input,output, and processing

When a bank teller uses a computer terminal to know the balance in a customer's account it is an example of

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on-line updating

off-line processing

on-line processing

on-line query

The fist Apple computer was built in

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a garage

a warehouse

an apartment

a factory

The heart of a digital computer is....

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control unit

memory unit

logic unit

visual display unit

How many pairs of computers can simultaneously communicate on Ethernet LAN?

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1

2

3

multiple

Soft copy refers to.

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OCR-A

screen output

microfiche

digitizing

Tool to change PROM chips are called.

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chip kits

RAM burners

PROM burner

none of these

Real time computing is possible because of the following number of storage locations

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storage capability

high speed

accuracy

versatility

The major disadvantage of magnetic tape is

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cost

unreliability of store data

slow data recording

data is accessed sequentially

computers that deal with discrete data are called.

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discrete computers

digital computers

analog computers

micro computers

CD-ROM has the same format as a(n).

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backup tape

DAT

diskette

audio compact disk

A connection of same type of network is

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Bridge

Repeater

Gateway

Router

The most commonly used output devices in a computer system are

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printers and monitors

disk drives and printers

disk drive and tape drives

tape drive and keyboards

___________ code systems can represent upto 65536 symbols

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ASCII-7

EBCDIC

ASCII-8

Unicode

In Boolean algebra A.0 is

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0

1

A+0

A+1

Binary Coded decimal number express each decimal digit as

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binary digits

nibble

word

byte

The number of inputs to full adder are

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1

2

3

4

Pick up wrong logical expression

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A parallel interface

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transmit one bit at a time

transmit one or more bits at a time using a single wire

transmit 8 or more bits at a time using as many wires

cannot be used to connect a printer to a PC

An inkiet pirnter is an example of a(n):

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LASER printer

Impact Printer

COM printer

NON-Impact Printer

A one color screen on a black background is called

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monochrome

addressable

blank

lcd

Testing of each individual program or module is called.

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program testing

volume testing

system testing

unit testing

A driver is.

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hardware

a peripheral device

a card

software

The music and speech represent the:

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Image Data

Audio Data

Video Data

Text Data

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0

1

x

Logical security for on-line systems is achieved primarily by ________ and authorization codes

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MIS

Passwords

Tactical

None of the above

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