falling edge. Synonym for negative-going edge.
FCC.
Federal
Communications Commission.
fetch.
To
locate
and
load a quantity
of
data
from storage.
FF.
The
form feed character.
field. (1)
In
a record, a specified area used for a particular
category
of
data. (2)
In
a
data
base, the smallest unit
of
data
that
can
be
referred to.
field-programmable logic sequencer (FPLS).
An
integrated circuit
containing a programmable, read-only memory
that
responds to
external inputs
and
feedback
of
its
own
outputs.
FIFO
(first-in-first out). A queuing technique in which the next
item
to
be
retrieved is the item
that
has
been
in the queue for the
longest time.
fixed disk drive.
In
the IBM Personal Computer, a unit consisting
of
nonremovable magnetic disks,
and
a device for storing
data
on
and
retrieving
data
from the disks.
flag. (1)
Any
of
various types
of
indicators used for
identification. (2) A character
that
signals the occurrence
of
some condition, such as the
end
of
a word. (3) Deprecated term
for mark.
flexible disk. Synonym for diskette.
flip-flop. A circuit
or
device containing active elements, capable
of
assuming either one
of
two stable states
at
a given time.
font. A family
or
assortrrlent
of
characters
of
a given size
and
style; for example, 10 point Press
Roman
medium.
foreground. (1)
In
multiprogramming, the environment in which
high-priority programs are executed. (2)
On
a color display
screen, the characters as opposed
to
the background.
form feed. (1)
Paper
movement used
to
bring
an
assigned
part
of
a form
to
the printing position. (2)
In
word processing, a
Glossary-14
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