Question # 1

What is telecommuting?

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a special form of electronic mail

a new trend in roboties that may take the place of cars

a trend towards working at home using personal computers and modems

none of these

Which of the following does not represent an I/O devices?

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speaker

OCR

Joystick

ALU

What layer of the OSI model does data compression?

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Network

Data Link

Presentation

Physical

The unit that transform data in informaion is the

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CPU

ROM

DVD

OCR

The correct order of data hierarchy is

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bit-byte-record-field-file-data base

bit-byte-file-record-field-data base

bit-byte-field-record-file-data base

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x + y

Which of the following is not a category of network problems.

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Newsgroup problems

Physical problems

Electrical problems

Viruses

The unit that transforms data into information is the.

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CPU

ROM

DVD

OCR

Program maintenance means

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Maintaining a program exactly the way it was initially developed

Changing a program due to changes in the organization

Removing the errors from a program

Changing a program due to changes in the organization

_________ is not an application software

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internet

Device drive

Games

Multimedia software

The voice channel has a bandwidth of

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0 - 2 KHz

0 - 4 KHz

5 - 10 KHz

10 - 20 KHz

Who is responsible for introducing the concept of stored program.

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Blaise Pascal

Herman Hollerith

Charles Babbage

John von Neumann

Charles Babbage worked closely with ______ to develop his device.

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Ada Lovelace

Joseph-Marie Charles

Herman Hollerith Jacquard

Lord Byron

To activate an object, send

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a message

an instance

a method

an attribute

The mechanism for reading or writing data in a disk is called

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track

rorational delay

access arm

seek time

The highest-level language are called

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4GLs

high-level

assembly

natural

The most common protocol used in WAN is

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Ethernet

X.25

IEEE

ISO

A digital computer system consists of a central processing unit interfaced with

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input devices

auxiliary storage

output devices

all of above

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

The five basic parts of a computer system are

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hardware, software, memory,VDU, and magnetic tape

store,arithmatic and logic unit, control unit, input device, and output device

CPU, ALU,software,firmware, and operating system

data bus,control lines,address bus,memory, and printer

An arrangement in which data is transmitted in both directions at a time is called

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Simplex

Full duplex

Half duplex

Multi-duplex

The technique whereby part of the program is stored on disk and is brought into memory for execution as needed is called

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memory allocation

interrupts

virtual storage

prioritized memory

A device used for optical-character recognition is a.

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wand reader

light pen

mouse

MICR reader

How many types of data transmission modes are there?

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2

3

4

5

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x . y

x + y

x . y

A physical system can be modeled by a set of.

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Boolean equations

logic equations

differential equations

linear algebraic equations

A connection for similar networks.

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satellite

gateway

bridge

fax

The circuit that is used for parallel to serial conversion is

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decoder

encoder

multiplexer

demultiplexer

Shift of a register by one bit to left in binary code is equivalent to.

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addition of 2

subtraction of 2

division by 2

multiplication by 2

The process of transferring data from one location to another is called:

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Data processing

Data Computing

Data communication

Data sequencing

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

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