| Hacker | While this term originally referred to a clever or expert programmer, it is now... |
| Halftone | A halftone image is made up of a series of dots rather than a continuous tone... |
| Handle | In online chat, the name you use is often referred to as your screen name, or... |
| Hard Copy | A hard copy is a printed document. It may be a text file, photograph, drawing, or... |
| Hard Disk | When you save data or install programs on your computer, the information is... |
| Hard Drive | The hard drive is what stores all your data. It houses the hard disk, where all... |
| Hard Token | A hard token, sometimes called an "authentication token," is a hardware security... |
| Hardware | Computer hardware refers to the physical parts of a computer and related devices... |
| HDMI | Stands for "High-Definition Multimedia Interface." HDMI is a digital interface for... |
| HDTV | Stands for "High Definition Televsion." HDTV is a high-quality video standard... |
| HDV | Stands for "High-Definition Video." According to a consortium of manufacturers... |
| Heat Sink | A computer's CPU may perform millions of calculations every second. As the... |
| Heuristic | Generally speaking, a heuristic is a "rule of thumb," or a good guide to follow... |
| Hexadecimal | Hexadecimal is a base-16 number system. It is a different method of representing... |
| HFS | Stands for "Hierarchical File System." HFS is the file system used for organizing... |
| Hibernate | If you are not going to use your computer for a few hours, it is a good idea to put... |
| Hit | Technically, a hit is a request made to a Web server. It is a popular... |
| Home Page | This is the starting point or front page of a Web site. This page usually has some... |
| Horizontal Market Software | A horizontal market is one that supplies goods to a variety of industries instead... |
| Host | This is a computer that acts as a server for other computers on a network. It can... |
| Hover | When you roll the cursor over a link on a Web page, it is often referred to as... |
| HSF | Stands for "Heat Sink and Fan." Nearly all computers have heat sinks, which help... |
| HTML | Stands for "Hyper-Text Markup Language." This is the language that Web pages are... |
| HTTP | Stands for "HyperText Transfer Protocol." This is the protocol used to transfer... |
| HTTPS | Stands for "HyperText Transport Protocol Secure." HTTPS is the same thing as HTTP... |
| Hub | This is a hardware device that is used to network multiple computers together. It... |
| Hyper-Threading | Hyper-threading is a technology developed by Intel Corporation. It is used in... |
| Hyperlink | A hyperlink is a word, phrase, or image that you can click on to jump to a new... |
| Hypermedia | Most Web navigation is done by clicking text-based links that open new pages in a... |
| Hypertext | Hypertext is text that links to other information. By clicking on a link in a... |
