ASCII
BASIC
Baud
Bit
Byte
CPI
Firmware
Hardware
GLOSSARY
American Standard Code for Information Inter-
change: a standard code
which
uses
numbers to
represent characters (letters, numerals, and sym-
bols) and control instructions.
(See
Appendix
B.)
Beginner's All-purpose Symbolic Instruction Code:
one
of
the most popular programming lang!Jages
used
with
personal computers. Programming ex-
amples in this User's Manual are written in
BASIC.
A measure
of
the speed at
which
data
is
transmit-
ted. In personal computers, the baud rate
is
equivalent
to
bits per second.
With
serial inter-
faces, the printer must be
set
to receive data at the
same baud rate at
which
the
computer
transmits
data.
Binary digit.
Each
bit
is
either 1
or
o.
A basic
unit
of
information consisting
of
eight bits.
One
byte can represent any ASCII character
or
any
number
between 0 and 255. (Note: Some
computers handle data in 7-bit units.)
Characters
Per
Inch: a measure
of
character
width.
Note that 10-cpi characters are
wider
than
17.1-CPI characters.
Programming
or
information recorded in a perma-
nent storage device, such
as
a
ROM
or
PROM.
Firmware
is
fixed and cannot be modified
as
soft-
ware can.
The tangible machinery and circuits in a computer
system: keyboard, printed-circuit boards,
print
head, etc.
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