12. Binary: (1) Pertaining to a selection, choice,
or
condition
that
that has two possible values
or
states. (2) Pertaining to a fixed
radix numeration system having a radix
of
two.
13. BIOS: Basic Input/Output System.
14. Bootstrap: A technique
or
device designed to bring itself into a
desired state by means
of
it's own action, e.g. a machine routine
whose first
few
instructions are sufficient to bring the rest
of
itself into the computer from an input device.
15. Buffer:
An
area of storage that
is
temporarily reserved for use in
performing an input/output operation, into which data
is
read or
from which data
is
written. Synonymous with
I/O
area. A
portion
of
storage for temporarily holding input
or
output data.
16. Bus: One or more conductors used for transmitting signals or
power.
17. Byte: (1) A binary character operated upon
as
a unit and
usually shorter than a computer word. (2) The representation of
a character.
18. CLK: Clock. (Refer to System Board
I/O
Channel
Descriptions
).
19. Code: (1) A set
of
unambiguous rules specifying the manner in
which data may be represented in a discrete form. Synonymous
with coding scheme. (2) A set
of
items such as abbreviations
representing the members
of
another set. (3) Loosely, one
or more computer programs, or part
of
a computer program.
(4)
To
represent data or a computer program in a symbolic form
that can be accepted by a data processor.
20. Computer: A data processor that can perform substantial
computation, including numerous arithmetic operations,
or
logic operations, without intervention by a human operator
during the run.
21. CPS: Characters per second.
22. CRC: The cyclic redundancy check character.
23. CRT:
(1) A Cathode ray tube display. (2) A display device,
such as the IBM Monochrome Display, that uses a cathode ray
tube.
24. CTS: Conversational Terminal System. (2) Clear to Send.
Associated with modem control.
25. DACKO-DACK3:
DMA
Acknowledge 0 to
3.
(Refer to
System Board
I/O
Channel Description).
G-2
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