Stop Bit: A bit or group of bits that identifies the end of a data word
and defines the space between data words.
String: An alphanumeric character or series of characters
surrounded by quotation marks.
Subroutine: An independent program segment separate from the
main program that performs a specific task. Subroutines are
called from the main program with the GOSUB statement and
must end with a RETURN statement.
Subscript: A variable or constant that refers to a specific element
in an array by its position within the array.
Sustain: The midranged volume of a musical note.
Synchronous Transmission: Data communications using a
synchronizing, or clocking, signal between sending and
receiving devices.
Syntax: The grammatical rules of a programming language.
Tone: An audible sound of specific pitch and waveform.
Transparent: Describes a computer operation that does not
require user intervention, i.e. the user is unaware that it is
taking place.
Variable: A unit of storage representing a changing string or
numeric value. Variable names can be any length, but only
the first two characters are stored by the Commodore 128.
The first character must be a letter.
Video Interface Controller (VIC): The MOS 6566 chip responsible
for the 40-column graphics features of the Commodore 128.
Voice: A sound-producing component inside the SID chip. There
are three voices within the SID chip so the Commodore 128
can produce three different sounds simultaneously. Each
voice consists of a tone oscillator/waveform generator, an
envelope generator and an amplitude modulator.
GL-14
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