Dell PowerEdge 7250 - Manual (Page 94)

92 Glossary
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m integrated host adapter circuitry.) To add a SCSI
expansion bus to your system, you must install or
connect the appropriate host adapter.
HPFS
Abbreviation for the High Performance File System
option in the Windows NT operating systems.
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.
internal microprocessor cache
An instruction and data cache built in to the
microprocessor. The Intel Pentium microprocessor
includes a 16-KB internal cache, which is set up as an
8-KB read-only instruction cache and an 8-KB
read/write data cache.
IP address
Abbreviation for Internet Protocol address. See
TCP/IP.
IPMI
Abbreviation for Intelligent Platform Management
Interface, which is an industry standard for
management of peripherals used in enterprise systems
based on Intel ® architecture. The key characteristic of
IPMI is that inventory, monitoring, logging, and
recovery control functions are available independent of
the main processors, BIOS, and operating system.
IRQ
Abbreviation for interrupt request. A signal that data
is about to be sent to or received by a peripheral device
travels by an IRQ line to the microprocessor. Each
peripheral connection must be assigned an IRQ
number. For example, the first serial port in your
system (COM1) is assigned to IRQ4 by default. Two
devices can share the same IRQ assignment, but you
cannot operate both devices simultaneously.
KB
Abbreviation for kilobyte(s), 1024 bytes.
key combination
A command requiring you to press multiple keys at the
same time. For example, you can reboot your system
by pressing the <Ctrl><Alt><Del> key
combination.
LAN
Acronym for local area network. A LAN system is
usually confined to the same building or a few nearby
buildings, with all equipment linked by wiring
dedicated specifically to the LAN.