User's Manual

Glossary 219

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 computer (COM1) is assigned to IRQ4 by default. Two devices

can share the same IRQ assignment, but you cannot operate both devices

simultaneously.

ISA

Acronym for Industry-Standard Architecture. A 16-bit expansion bus design. The

expansion-card connectors in an ISA computer are also compatible with 8-bit ISA

expansion cards.

iSCSI

Acronym for Internet SCSI. An IP based storage networking standard for linking

data storage facilities. By carrying SCSI commands over IP networks, iSCSI is

used to facilitate data transfers over intranets and to manage storage over long

distances.

ITE

Abbreviation for information technology equipment.

jumper

Jumpers are small blocks on a circuit board with two or more pins emerging from

them. Plastic plugs containing a wire fit down over the pins. The wire connects

the pins and creates a circuit. Jumpers provide a simple and reversible method of

changing the circuitry in a printed circuit board.

JVM

Acronym for Java virtual machine.

Abbreviation for kilo-, indicating 1,000.

Abbreviation for kilobyte(s), 1,024 bytes.

KB/sec

Abbreviation for kilobyte(s) per second.