Dell External OEMR 1435 User's Manual
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Glossary 141
HMA
Abbreviation for high memory area. The first 64 KB of extended memory above
1 MB. A memory manager that conforms to the XMS can make the HMA a direct
extension of conventional memory. Also see XMM.
host adapter
A host adapter implements communication between the system's bus and the
controller for a peripheral device. (hard drive controller subsystems include
integrated host adapter circuitry.) To add a SCSI expansion bus to your system,
you must install or connect the appropriate host adapter.
HTTP
Abbreviation for Hypertext Transfer Protocol. HTTP is the client-server TCP/IP
protocol used on the World Wide Web for the exchange of HTML documents.
HTTPS
Abbreviation for HyperText Transmission Protocol, Secure. HTTPS is a variant
of HTTP used by Web browsers for handling secure transactions. HTTPS is a
unique protocol that is simply SSL underneath HTTP. You need to use "https://"
for HTTP URLs with SSL, whereas you continue to use "http://" for HTTP URLs
without SSL.
ID
Abbreviation for identifier, commonly used when referring to a user identifier
(user ID), object identifier (object ID), or hardware identifier (controller ID).
IDE
Abbreviation for Integrated Drive Electronics. IDE is a computer system
interface, used primarily for hard drives and CDs.
I/O
Abbreviation for input/output. The keyboard is an input device, and a printer is
an output device. In general, I/O activity can be differentiated from
computational activity. For example, when a program sends a document to the
printer, it is engaging in output activity; when the program sorts a list of terms,
it is engaging in computational activity.
IP address
Abbreviation for Internet Protocol address. See TCP/IP.