an instrument or device used for observing, checking, or keeping a continuous record of a process or quantity

a panel of keys that operate a computer or typewrite

CPU (pronounced as separate letters) is the abbreviation for central processing unit. Sometimes referred to simply as the central processor, but more commonly called processor, the CPU is the brains of the computer where most calculations take place

Speakers are one of the most common output devices used with computer systems

Moving a mouse along a flat surface can move the on-screen cursor to different items on the screen

A printer is a device that accepts text and graphic output from a computer and transfers the information to paper

A laptop is a computer designed for portability. Laptops are usually less than 3 inches thick, weigh less than 5 pounds and can be powered by a battery. ... A laptop computer is also called a notebook

a facility allowing computers, smartphones, or other devices to connect to the Internet or communicate with one another wirelessly within a particular area

A motherboard is the main printed circuit board found in general purpose microcomputers and other expandable systems

A Universal Serial Bus ( USB ) is a common interface that enables communication between devices and a host controller such as a personal computer (PC)

Stands for "Compact Disc." CDs are circular discs that are 4.75 in (12 cm) in diameter. The CD standard was proposed by Sony and Philips in 1980 and the

PC is an abbreviation for 'police constable'. ... A PC is a computer that is used by one person at a time in a business, a school

the faculty by which the mind stores and remembers information

A push- button (also spelled pushbutton) or simply button is a simple switch mechanism for controlling some aspect of a machine or a process.

metal drawn out into the form of a thin flexible thread or rod