Icon
A small picture which, when you click on it launches an application
Inbox
A folder in your email client where new received messages are stored
Infrared port
A port capable of sending and receiving data using infrared light. Once commonplace on mobile phones and laptops, the technology is being replaced by Bluetooth
Installing
The act of placing a program on a computer system so it can be executed. Some applications do not require installing before being executed
Instant Messaging (IM)
Real-time communication between two or more people over a network, such as the internet, via an IM client e.g. MSN Messenger
Internet
A global network of networks that transmit data using the IP protocol. The Internet carries various services, such as email, web pages and file transfer
Internet Explorer
The most popular web browser in use today; designed by Microsoft and now an integral part of the Windows operating system
Internet Protocol (IP)
A network layer protocol used transmit data over the Internet and on local networks
Intranet
A website hosted internally within an organisation to convey information between employees
IP Address
The numerical address given to a computer operating on an IP network. Every IP address on an IP network has to be unique otherwise conflicts will occur
ISDN (Integrated Services Digital Network)
A circuit-switched telephone network system to allow the transmission of digital voice and data over old copper telephone network infrastructures, now superseded by Broadband services
ISP (Internet Service Provider)
An ISP is a company providing private and business consumers with access to the internet, and often additional services such as email and website hosting
