Glossary

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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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A

Adobe Acrobat

The official software developed for creating PDF documents

Adobe Reader
The official program for opening PDF documents

B

Blog
Short for weblog, a blog is an informal website, usually written by an individual or small number of people

C

Codec
A program or device for encoding and decoding digital data; popular in video and audio files to help improve quality and reduce file size

D

Data compression
Shrinking data to save space; at one time (compressed) Zip files were everywhere, JPEG is still hugely popular for photos today

DHCP
Dynamic Host Control Protocol (DHCP) is the protocol used by a DHCP server to dynamically (and automatically) assign IP addresses to the devices connected to a network

DNS
Short for Domain Name Server, DNS is the internet’s phone book; it translates domain names (like google.com) into IP addresses (like 216.58.208.174)

Domain name
You can think of a domain name as an address, often pointing to a website (microsoft.com, for example) or email server (such as gmail.com)

E

F

Freeware
Software, often proprietary, that is provided for free (without payment)

G

H

Hardware
A computer’s physical components: motherboard, processor, monitor and keyboard…

I

IP address
An IP (Internet Protocol) address is a string of numbers assigned to a device (usually when it connects to a network) so that it can communicate with other computers/devices

J

JPEG
The Joint Photographic Experts Group (JPEG) is the name of the committee that created this file format; it’s commonly used in digital photography

K

Keyword
A word or phrase entered into a search engine to find something

L

Linux
Linux is technically a kernel (the heart of an operating system), but the name is often used to describe the family of operating systems that are built upon it

M

N

O

Open source
Term stating that a product allows the use of its source code; open source software is often available completely free (both as in beer and speech)

Operating System (OS)
The software responsible for running a computer, such as Microsoft Windows

P

PDF
The Portable Document Format (PDF) was created by Adobe to provide consistency between documents irrespective of the device displaying them

Pwned
A slang term derived from the verb “own” (possibly the result of a typographical error) – popular in video games and synonymous with hacking

Q

R

S

Search engine
Software for carrying out web searches; Google being by far the most popular example

Software
Data that tells a computer what to do, also referred to as a program or app

Source code
The code that makes up a computer program

T

U

URL
A Uniform Resource Locator (URL) is the technical name given to a website address

V

W

Wizard (software)
A software wizard is a series of graphical steps to help make setting up or installing a program easier

X

Y