Micros Systems Ultra Setup Manual page 103

1st Page Contents
ISA
Abbreviation for Industry Standard Architecture. ISA refers to the
hardware components and the bus and signal timing that has evolved
around the original IBM PC-AT. Other bus architectures have emerged
such as PCI.
Jumper
A small plug or wire that connects different points in an electrical
circuit to alter some aspect of hardware operation. Jumpers are used to
configure system hardware.
Kbytes
Abbreviation for 1024 bytes.
Keyboard Controller
A microcontroller in the keyboard that scans for keystrokes, processes
them, and sends to the PC via a serial interface. A second
microcontroller on the System Board receives the serial data, converts
it to parallel data, and makes the keystrokes available to the
application program by placing them in the keyboard buffer. The
keyboard BIOS handles these functions.
Landing Zone
An unused track on a disk surface where the read/write heads will
auto-park when power is turned off. The landing zone is generally
equal to the total number of cylinders on the disk.
PCWS Ultra Setup Guide
Glossary of Terms
G-13