Jargon Buster H

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Half-Duplex
Any device that at any given moment can either send or receive data, but not both. Most Ethernet transmissions are half-duplex

Hardware
Physical computer equipment such as electrical, electronic, magnetic, and mechanical devices. Anything in the computer world that you can hold in your hand. A floppy drive is hardware; Microsoft Word is not.

HDD - Hard Disk Drive
A data-recording system using solid disks of magnetic material turning at high speeds to store and retrieve programs and data in a computer.

HTML - Hypertext Mark-up Language
Hypertext Mark-up Language: is the computer language in which web pages are written. This language tells visitors' computers how to draw the page on their screen when they connect to your website. [Select 'Source' in the view menu of your web browser for an example. To return to normal, close the window.] Most web building software does all the HTML coding, but a bit of knowledge is helpful if you plan to maintain or develop your own website.

HTTP - HyperText Transfer Protocol
HyperText Transfer Protocol: has been in use on the WWW since around 1990 and refers to a client-server protocol by which two computers can communicate over a TCP/IP connection.

Hub - Network Hub
Network Hub: when in the context of computing refers to a networking component which acts as a convergence point of a Network allowing the transfer of data packets. In its simplest form a hub works by duplicating the data packets received via one Port and making it available to all ports, therefore allowing data sharing between all devices connected to the hub.A passive hub simply allows the data packets to flow through it, a manageable hub allows the data transfer to be monitored and the ports to be configured individually.

Hyperlink
Hyperlink: One click short cuts to navigate your way round the web or within a website. Links tie the web together and usually take the form of highlighted images or underlined words. Your cursor will mostly change into a pointing finger icon as it passes over a link.

Hypertext - Hypertext Document
A Hypertext Document: (webpage) contains Hyperlinks to other documents stored locally or anywhere on the WWW.

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