Types and Components of Computer Systems

A printed circuit board that contains the main components of a computer

• BIOS

• Hard drive

• Motherboard

• Power supply

A type of memory where data is lost when the computer is switched off

• HDD

• USB

• ROM

• RAM

A device that must always be connected to an external power source to work

• Laptop

• Desktop

• Smartphone

• Tab

This is an output device

• Microphone

• Webcam

• 3D printer

• Scanner

Name the software that you use for viewing web pages

• Presentation

• Web browser

• Desktop publisher

• Communications Software

Barcode reader is a

• software

• hardware

• battery

• mobile phone

ROM is volatile

• True

• False

An example of utility software

• Printer

• Disk defragmenter

• Monitor

• Touch screen

Biometric sytems are not used for

• verification

• identification

• screening

• entertainment

Which is not true about desktop computers

• Have a larger screen

• Need constant power supply

• Easy to upgrade

• Portable