anti-virus software - A program that finds and removes viruses from a computer

Bluetooth - a way of communicating wirelessly over short distances between electronic devices (for example computer and mobile telephone

browser, to browse - A browser is a program like Firefox or Internet Explorer. You use it to view or browse the internet

bug - A (small) defect or fault in a program

cache - A kind of memory used to make a computer work faster

CD-ROM - A disk for storing computer information

CPU - Central Processing Unit. This is a PC's heart or "brains

data - usually means the information (text, pictures, audio etc) that you create or share on a computer, as opposed to the programs that manipulate the data

DOS - Disk Operating System. The original system used for PCs, where you typed in commands instead of pointing and clicking

ebook - an electronic book that can be downloaded and read on a computer or other device

electronic mail (email, e-mail) - Messages sent from one computer to another. You can see email on the screen or print it out

file - a specific computer record; it could contain data such as text

floppy drive - The device used to run a  floppy disk

folder (directory) - A sub-division of a computer's hard disk into which you put files

font - A particular sort of lettering (on the screen or on paper). Arial is a font. Times New Roman is another

graphics card - The equipment inside a computer that creates the image on the screen

hard disk - The main disk inside a computer used for storing programs and information. It is hard because it is metal

hotspot - an area that has an available wireless signal for Internet 

icon - A small image or picture on a computer screen that is a symbol for folders, disks and etc

Internet -international network of computers that you connect to by telephone line. Two popular services of the Internet are theworld wide web

iPad - a tablet computer created by Apple

Kb, Mb, Gb - kilobytes, megabytes, gigabytes. Used to measure computer memory and storage

memory - Memory is for the temporary storing of information while a computer is being used

MHz - Megahertz. This describes the speed of computer equipment. The higher the MHz the better the performance

modem - Equipment connected to a computer for sending/receiving digital information by telephone line. You may need a modem to connect to the internet, to send e-mails and to fax

notebook - a notebook computer; a laptop computer; a folding, portable computer

operating system (OS) - The basic software that manages a computer

OCR - Optical Character Recognition. OCR lets a PC read a fax or scanned image and convert it to actual lettering

palmtop - a computer that is small enough to sit on the palm of the hand

parallel port - A socket at the back of a computer for connecting external equipment or peripherals, especially printers

PC card - A device that is the same size as a thick credit card, for plugging into a slot on notebook computers. You can buy memory,modems and hard diske as PC cards

PDA - abbreviation of "personal digital assistant

peripheral - Any equipment that is connected externally to a computer. For example, printers,scanners and modems are peripherals

pixel - The image that you see on the screen is made of thousands of tiny dots, points or pixels

program Software that operates a PC and does various things, such as writing text (word-processing program), keeping accounts (accounts program) and drawing pictures (graphics program)

QWERTY - The first 6 letters on English-language keyboards are Q-W-E-R-T-Y. The first 6 letters on French-language keyboards are A-Z-E-R-T-Y.

RAM, ROM - Two types of memory. RAM (Random Access Memory) is the main memory used while the PC is working. RAM is temporary. ROM (Read Only Memory) is for information needed by the PC and cannot be changed

resolution - The number of dots or pixels per inch (sometimes per centimetre) used to create the screen image.

scanner - Equipment for converting paper documents to electronic documents that can be used by a computer

serial port - Socket at the back of a PC for connecting peripherals 

smartphone - a mobile phone that includes a palmtop computer or PDA and also gives access to Internet and email

tablet - a tablet computer; a mobile computer consisting of a screen only, and controlled by touching the screen.

TFT - Thin Film Transistor, a type of high quality screen for notebook computers

USB - abbreviation of "universal serial bus"; a standardized connection for attaching devices to computers etc

USB flash drive - a small, external device for storing data; it connects through the USB socket

virus - A small, unauthorized program that can damage a PC

Wi-Fi - a system for communicating without wires over a computer network

Windows - An operating system used by the majority of PCs

World Wide Web, WWW, the Web - WWW are initials that stand for World Wide Web. The Web is one of the services available on the internet. It lets you access millions of pages through a system of links. Because it is "world-wide", it was originally called the World Wide Web or WWW

WYSIWIG - "What You See Is What You Get." With a WYSIWIG program, if you print a document it looks the same on paper as it looks on the scree

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