beginner's all-purpose symbolic instruction code (BASIC).  A 
programming language with a small repertoire 
of 
commands and a 
simple syntax, primarily designed for numeric applications. 
binary. 
(1) 
Pertaining to a selection, choice, or condition that has 
two possible values 
or 
states.  (2) Pertaining to a fixed radix 
numeration system having a radix of 
2. 
~ 
binary digit.  (1) In binary notation, either of the characters 0 
or 
1. 
(2) Synonymous with bit. 
binary notation. 
Any 
notation 
that 
uses two different characters, 
usually the binary digits 0 and 
1. 
binary synchronous communications (BSC).  A uniform procedure, 
using a standardized set of control characters and control 
character sequences for synchronous transmission 
of 
binary-coded data between stations. 
BIOS.  Basic 
input/output 
system. 
bit.  Synonym for binary digit 
bits per second (bps).  A unit 
of 
measurement representing the 
number 
of 
discrete binary digits transmitted 
by 
a device in one 
second. 
block.  (1) A string 
of 
records, a string 
of 
words, 
or 
a character 
string formed for technical 
or 
logic reasons to 
be 
treated as an 
entity.  (2) A set 
of 
things, such as words, characters, 
or 
digits, 
treated as a unit. 
block-check character (BCC). 
In 
cyclic redundancy checking, a 
character 
that 
is 
transmitted by the sender after each message 
block and 
is 
compared with a block-check character computed by 
the receiver to determine if the transmission was successful. 
boolean operation.  (1) 
Any 
operation in which each of the 
~ 
operands 
and 
the result take one of two values.  (2) 
An 
operation 
that 
follows the rules 
of 
boolean algebra. 
Glossary-4