data Information that is passed to
or
output from a program. There are four types
of
data:
• Integer numbers
• Single-precision numbers
• Double-precision numbers
• Character-string sequences (strings)
debug
To
find andremove logical
or
syntactic errors from a program.
decimal Capable
of
assuming one
often
states,
e.g.,
the decimal digits
0,
I,
...
,9.
Decimal (base
10)
nurnbering is the everyday system, using sequences
of
decimal
digits. Decirnal numbers are stored in binary code in Model III
BASIC.
default
An
action
or
value which is supplied by a program when you do not specify
an action
or
value to
be
used.
delimiter A characterwhich marks the beginning
or
end
of
a dataitem, and is not a
part
of
the data.
For
example, the double-quote symbol is a string delimiter to
BASIC.
device A physical part
of
the computer system used for data 110, e.g. , keyboard,
display,
or
line printer.
diskette A magnetic recording medium for mass data storage.
dummy variable A variable name which is used in an expression to meet syntactic
requirements, but whose value is insignificant.
edit
To
changeexisting information.
entrypoint
The
address
of
a machine-language program
or
routine where
execution is to begin. This is not necessarily the same as the starting address. Entry
point is also referred to as the
transfer address.
hexadecimal
or
hex Capable
of
existing in one
of
16
possible states. For example,
the hexadecimal digits
areo,I,2,
...
,9,A,B,C,D,E,F.
Hexadecimal (base-16)
numbers are sequences
of
hexadecimal digits. Address and byte values are
frequently given in hexadecimal form. In Model III
BASIC, hexadecimal constants
can
be
input
by
prefixing the constant with
&H.
increment
The
value which is added to a countereach time one cycle
of
a
repetitive procedureis completed.
input
To
transfer
data
from outside the Computer(from a cassette file, keyboard,
etc.) into
RAM.
kilobyte
or
K
1024
bytes
of
memory. Thus a
64K
Systemincludes
64*
1024=65536
bytes
of
memory.
logical expression
An
expression which is evaluated as eitherTRUE ( = -
1)
or
FALSE (=0).
H/2
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