Question # 1

The voice channel has a bandwidth of

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0 - 2 KHz

0 - 4 KHz

5 - 10 KHz

10 - 20 KHz

A disk pack within a selected data module is a

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backup unit

Winchester

diskette

Cd-Rom

Soft copy refers to

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OCR-A

screen output

microfiche

digitizing

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

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magnetic disk

magnetic drum

floppy disk

printer

A disk pack withing a sealed data module is a.

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Backup unit

Winchester

diskette

CD-ROM

Imaging used what device to input data.?

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scanner

icon

bar code reader

tablet

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

Which input device is often attached to laptop computers.

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trackball

inscriber

graphics display

wand reader

Communication between a computer and keyboard involes __________ transmission.

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Half duplex

Full-duplex

Simplex

Automatic

Personal computer users may wish to increase their hard disk storage capacity with.

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higher density

DAT

read only media

removable hard disk cartridge

Imaging used what devices to input data?

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scanner

barcode reader

icon

tablet

Personal computer user may wish to increase their hard disk storage capacity with

Choose an answer

higher density

DAT

read only media

removable hard disk cartridge.

A disk pack within a selected data module is a

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backup unit

Winchester

diskette

Cd-Rom

The encoding scheme of data represent as

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EBCDIC code

ASCII code

Unicode

All of the above

Laser beam technology is used for

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terminals

optical disk

keyboard

magnetic tape

The CRT technology with the best resolution.

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MICR

VGA

SVGA

LCD

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