RadiSys EPC-5A, Справочное руководство по аппаратному и программному обеспечению

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EPC-5A Hardware Reference
G-6

G

Gigabyte (GB or GByte): Approximately one billion (US) or one thousand million
(Great Britain) bytes. 2
30
= 1,073,741,824 bytes exactly.

H

Hang: A condition where the system microprocessor suspends processing operations
due to an anomaly in the data or an illegal instruction.
Header: A mechanical pin and sleeve style connector on a circuit board. The header
may exist in either a male or female configuration. For example, a male
header has a number and pattern of pins which corresponds to the number
and pattern of sleeves on a female header plug.
Hexadecimal (h): A base 16 numbering system using numeric symbols 0 through 9
plus alpha characters A, B, C, D, E, and F as the 16 digit symbols. Digits A
through F are equivalent to the decimal values 10 through 15.
Host Bus: The address/data bus that connects the CPU and the chipset.

I

Industry Standard Architecture (ISA): A popular microcomputer expansion bus
architecture standard. The ISA standard originated with the IBM PC when
the system bus was expanded to accept peripheral cards.
Input/Output (I/O): The communication interface between system components and
between the system and connected peripherals.
Integrated Drive Electronics (IDE): A hard disk drive/controller interface standard.
IDE drives contain the controller circuitry at the drive itself, as compared to
the location of this circuitry on the computer motherboard in non-IDE
systems. IDE drives typically connect to the system bus with a simple adapter
card containing a minimum of on-board logic.
Infra-red Data Association (IRDA or IrDA): A specification for high-speed data
communication using infrared drivers and receivers for short-range wireless
data transmission.
Interrupt Request (INT): A software-generated interrupt request.