V1.0
VIG610M Motherboard Manual
71
Interlace
The mode the graphics card uses to refresh a monitor screen. When the graphics is
in interlace mode, the frequency of the display update is lower than in non-interlace
mode. This causes a slight flicker, so generally non-interlaced mode is better if the
monitor supports it.
L.E.D.
Light Emitting Diode - a light which indicates activity - for example hard disk access.
PCI
Peripheral Component Interface. It became apparent to manufacturers that the
8MHz AT ISA BUS on the standard PC was just not fast enough for today's
applications, and so PCI was invented. It is a high speed data bus that carries
information to and from components - known as 'Local Bus'.
RAM
Random Access Memory - the memory used by the computer for running programs
and storing data.
ROM
Read Only Memory - a memory chip which doesn't lose its data when the system is
switched off. It is used to store the System BIOS and VGA BIOS instructions. It is
slower than RAM.
Shadow Memory
The BIOS is normally stored in ROM. On certain systems it can be copied to RAM on
power up to make it go faster. This RAM is known as shadow memory. The System
BIOS is responsible for this copying.
Super VGA
Additional screen modes and capabilities provided over and above the standard
VGA defined by IBM.
VGA
Video Graphics Array - the graphics standard defined by IBM and provided on IBM's
PS/2 machines.
