|
Term
|
Description
|
|
Hard Copy
|
A
printout on paper. |
|
Hard Drive
|
A
high capacity disk storage device. It is the main secondary storage
device in PCs. Information is stored on magnetic platters that
spin at high speed inside a sealed case. Read/write heads transfer
the data to and from the computer. |
|
Hard Drive
Controller
|
A
circuit board with components that contain the logic needed to
interface with an individual hard drive. These used to be expansion
boards that fit into a bus slot on your motherboard but with the
introduction of Integrated Drive Electronics (IDE) the controller
is now integrated right into the hard drive housing. |
|
Hardware
|
The
actual physical components and devices that make up a computer
system. |
|
Head
|
The
top and bottom surface of each platter on a hard drive. Each platter
has two heads. |
|
Heat Sink
|
A
piece of heat conductive metal with cooling fins that can be attached
to the top of an IC, such as a CPU, to draw heat away and allow
it to run cooler. |
|
High Level
Format
|
The
format performed by an Operating System that writes a file system
to a logical drive, preparing it work with and understand that
particular OS. |
|
High Memory
Area
|
See
HMA. |
|
HIMEM.SYS
|
A
device driver that manages memory above conventional memory (the
first 640K). In DOS and Windows 3.x it had to be loaded in the
CONFIG.SYS file. Win9x loads it automatically but it has to be
present on your hard drive. |
|
HMA
|
High
Memory Area. The first 64K of extended memory in DOS. |
|
Hotkey
|
A combination
of keystrokes that performs a predetermined action or opens a
pop up window or menu in an application. |
|
HTML
|
Hypertext
Markup Language. A language or code used to create pages on the
World Wide Web, complete with hyperlinks and the ability to display
graphics. |
|
HTTP
|
A set
of rules or standards that are used on the World Wide Web that
describe how documents are coded, formatted, delivered and received
to allow users the exchange of information in Web pages. The beginning
of a URL or web address that starts with 'HTTP: ' tells your browser
that the web page at that address is compatible with those standards. |
|
Hyperlink
|
An icon,
graphic, word or text selection that, when clicked with the mouse,
opens another file or web page for viewing. |
