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Appendix A
IEEE 1394
A new, high speed external bus standard, also known as FireWire or
iLink, which supports data transfer rates of up to 400 Mbps for connect-
ing up to 63 external devices.
IrDA (Infrared Data Association)
A group of device vendors, including computer, component and
telecommunications, who have developed a standard for transmitting
data via infrared light waves. This enables you to transfer data from one
device to another without any cables.
LAN (local area network)
A computer netwoek that covers a relatively smaller area, such as in a
building or an enterprise. It is made up of servers, workstations, shared
resources, a network operating system and a communications link. These
individual PCs and devices on a LAN are known as "nodes", and are
connected by cables to access data and devices anywhere on the LAN,
so that many users can share expensive devices and data.
LED (light emitting diode)
A semiconductor device that converts electrical energy into light. Since
it lights up (usually red) when electricity is passed through it, it is usu-
ally used for the activity lights on computer's component, such as disk
drivers.
LPT (line printer terminal)
Logical device name for a line printer; a name reserved by the MS-DOS
for up to three parallel printer ports: LPT1, LPT2, and LPT3. It is fre-
quently used by the OS to identify a printer.
PCI (Peripheral Component Interconnect)
A local bus standard developed by Intel and first appeared on PCs in
late 1993. PCI provides "plug and play" capability and allows IRQs to
be shared. The PCI controller can exchange data with the system's CPU
either 32 bits or 64 bits at a time.
A-4
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