F2/3 I/O devices

A device that can be used to generate a hard copy of a document is a

• hard disk

• monitor

• printer

• scanner

All of the following can be classified as input devices except

• biometric systems

• scann

• sensors

• speakers

When purchasing a printer, the main factor a buyer should consider is

• compatibility of the printer and the computer

• size of memory

• speed of the processor

• storage capacity of the hard disk

A series of thick and thin bars of varying widths separated by spaces is a

• bar code

• magnetic ink code

• magnetic strip

• punched card

All of the following are features of a computer screen except

• colour

• resolution

• size

• sound

OMR is an input device that is used mainly for

• inputting graphic diagram into the computer

• marking multiple choice examination scripts

• processing cheques in banks

• reading information from survey forms

An input device that is used to input text, diagrams and pictures is a

• bar code reader

• joystick

• scanner

• touch screen

An example of a printer that prints one character at a time is a

• deskjet printer

• dot matrix printer

• laser printer

• line printer

A device that can be used to input architectural maps into the computer is a

• graphics tablet

• light pen

• OCR

• plotter

The resolution of a monitor is usually measured in

• bytes

• megahertz

• bits

• pixels