over shielded twisted pair copper wire.
Firmware
- Code that is written onto read-only memory (ROM) or programmable read-only
memory (PROM). Once firmware has been written into the ROM or PROM, it is retained even
when the device is turned off.
Fragmentation
- Breaking a packet into smaller units when transmitting over a network
medium that cannot support the original size of the packet.
Infrastructure
- An integrated wireless and wired LAN is called an infrastructure configuration.
IRQ
- Interrupt Request, a hardware interrupt on a PC. There are 16 IRQ lines used to signal
the CPU that peripheral event has started or terminated. In most cases, two devices cannot
use the same interrupt line.
PCMCIA
- Personal Computer Memory Card International Association, which develops
standards for PC cards, formerly known as PCMCIA cards, are available in three types which
are about the same length and width as credit cards, but range in thickness from 3.3mm(Type
I), 5.0mm(Type II), to 10.5mm(Type III). These cards can be used for many functions, including
memory storage, as modem cards, wireless LAN cards or Wired LAN cards.
Roaming
- A function that allows one to travel with a mobile end system (wireless LAN mobile
station, for example) through the territory of domain(an ESS, for example) while continuously
connecting to the infrastructure.
25
