Hardware. The physical part of a computer system; the machinery and equipment. Software means the programs that tell the computer what to do.
HDX
Half Duplex. A communications channel which transmits data in either direction, but only one direction at a time.
Hercules
Hercules Computer Technology, Inc., maker of video displays.
HEX
Hexadecimal. The base 16 numbering system, sometimes used as a short way of representing binary numbers. The digits 0-9 are used, plus the letters A-F which stand for numbers 10 to 15. The farthest-right digit is the ones place; the digit next to the left is the 16s place; the next place to the left is 16^2 = 256, etc. Each place is 16 times the place immediately to the right of it.
HAL
Hardware Abstraction Layer. A translation protocol in Windows NT for porting NT to another platform.
HD
1. Hard Disk. 2. High Density.
HDSC
High Density Signal Carrier (DEC).
HDTV
High Definition Television. The next standard in television and video, which will have higher resolution, better color, and better audio. There are both analog and digital versions of HDTV.
Explanation : (NiMH). A type of battery used in portable computers that lasts two or three hours and is less toxic than the older nickel cadmium batteries. It has less of a problem with memory effects, so does not have to be completely drained before recharging. The nickel metal hydride battery has nickel and metal hydride plates with potassium hydroxide as the electrolyte.
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