GLOSSARY
1.
Address Buss: A set
of
wires
or
signals carrying the binary-
coded address from the Intel-8088 microprocessor throughout
the rest
of
the
IBM
Personal Computer System Unit.
2.
AEN:
Address Enable. (Refer to System Board
I/O
Channel
Descriptions
).
3. ALE: Address Latch Enable. (Refer to System Board
I/O
Channel Descriptions).
4. Analog: (1) Pertaining to representation by means
of
contin-
uously variable physical quantities. (2) Contrast with digital.
5.
A!N:
Alphanumeric: Pertaining to a character set
that
contains
letters, digits, and usually other characters, such as punctuation
marks. Syonymous with alphameric.
6. AO-AI9: Address bits 0-19. (Refer to System Board
I/O
Channel Descriptions).
7.
AP
A:
All points addressable graphics.
8. ASCII: American Standard Code
of
Information Interchange.
The standard code, using a coded character set consisting
of7-
bit coded characters (8 bits including parity check), used for
information interchange among data processing systems,
data
communication systems and associated equipment.
The
ASCII
set
consists
of
control characters and graphic
characters.
9. Assembler: A computer program used
to
assemble. Synony-
mous with assembly program.
10. BASIC: (Beginner's all-purpose symbolic instruction code). A
programming language with a small repetoire
of
commands and
a simple syntax, primarily designed for numerical application.
11. BAUD: (1) A unit
of
signaling speed equal to the number
of
discrete conditions
or
signal events per second in Morse code,
one bit per second in a train
of
binary signals, and one 3-bit
value per second in a train
of
signals each
of
which can assume
one
of
eight different states. (2)
In
asynchronous transmission,
the unit
of
modulation rate corresponding to one unit
of
interval
per second, i.e. if the duration
of
the unit interval
is
20
milliseconds, the modulation rate is
50
baud.
G-l
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