| h |
- A simple hypertext markup language. 2. An indication of a hexadecimal number; 09h is hexadecimal 9.
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| h-menu |
Hierarchical menu. A pull-down menu that has sub-menus. The sub-menus are indicated by arrows. Putting the pointer on the item that has an arrow opens up the sub-menu. Sometimes a sub-menu will have arrows leading to sub-sub-menus.
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| h/w |
Hardware; the physical part of a computer system; the machinery and equipment. Software means the programs that tell the computer what to do.
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| H1-B Visa |
H1-B Visas may be used to bring a nonimmigrant worker to the United States if the employee is able to fill a position in a specialty occupation for professional position. The employee must prove that he/she is qualified for the position, holding a foreing degree equivalent to that required in the U.S. The visa can be granted from 1-6 years after which time he/she must reside outside the U.S. for at least one year.
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| hack |
- To use ingenuity and creativity to solve computer programming problems, to overcome the limitations of a system and expand its capabilities. 2. A solution to a programming problem. 3. A clever yet harmless practical joke.
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| hacker |
- One who is knowledgeable about computers and creative in computer programming, usually implying the ability to program in assembly language or low-level languages. A hacker can mean an expert programmer who finds special tricks for getting around obstacles and stretching the limits of a system. 2. To some people it means an unconventional programmer or one who is not formally trained, or one who jerry-rigs programs (making temporary fixes that are not well-done). 3. At MIT, a "hack" means a practical joke, especially one that requires intelligence and technological skill to carry out.
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| hairline rule |
A very thin line, often used as a design element in page layouts.
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| HAL |
Hardware Abstraction Layer. A translation protocol in Windows NT for porting NT to another platform.
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| half-adder |
A logic circuit in the arithmetic and logic unit of a computer that adds two one-digit binary numbers, producing a result bit and a carry bit. A half-adder consists of an XOR gate and an AND gate; a full-adder consists of half-adders and other switches.
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| half-duplex |
A communications channel which transmits data in either direction, but only one direction at a time.
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| half-inch tape |
Magnetic tape cartridge drives used for backup with mainframes and minicomputers.
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| halftone |
A reproduction of a grayscale image which uses dots of varying size or density to give the impression of areas of gray.
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| hand coding |
Writing a program in a programming language, rather than using high-level programming tools to create the program.
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| hand tool |
In graphics programs, a pointer shaped like a hand that is used to select and move things onscreen.
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| hand-held scanner |
A scanner that is held in the hand and passed across the image to be
scanned. Hand-held scanners are less expensive than desktop scanners, but
require a steady hand to get a clear image.
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| handle |
A nickname that is used online.
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| handles |
In graphics programs, handles are little squares that appear at the edges of selected images or text blocks, which can be used to change the size, shape, or orientation of the selected material.
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| handoff |
The transfer of an ongoing wireless call from one transmission site to another without disconnecting the call.
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| handset |
The part of a telephone that is held in the hand, containing the speaker
and microphone.
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| handshake |
The greeting between two modems, which can be heard as an annoying grating and squealing sound. The handshake introduces the modems to each other so they can establish the transmission speed they will use, whether they will use error correction or compression, and other agreements about how they will exchange information.
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| handshaking |
The exchange of signals back and forth over a communications network to establish a valid connection between two computers.
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| hanging indent |
A paragraph in which the first line begins at the left margin, and the rest of the lines are indented. Hanging indents are sometimes used when the first line begins with a number and a space before the text, and succeeding lines are indented to where the text begins in the first line.
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| hanging paragraph |
A paragraph with a hanging indent; every line but the first line is indented from the left margin.
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| hard boot |
Booting a system from power off. Sometimes a computer which is "locked up," or "frozen," must be turned off and on again to clear the memory before it can be operated. A soft boot is restarting the computer without turning the power off.
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| hard copy |
The paper version of a document, as opposed to the version on disk or tape.
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