Apple II - Page 168

DOS 3.3: Sunds for Disk Operating System. One
or lhree oper.lIling SYStems used by the Apple; 3.3
is the version number.
dot matrb: printcr: A type of" printer lhat forms
ctar20crs with patterns of dots produced by tiny
.striker wires. Compare daisy wiled prlntcr.
Do,",'ll Arrow: A key that Gn mo.sl. Pr0gr2ms)
nukes the cursor move down one line.
dO,",'llI03d: To send a file from one computcr to
another
drive 1: Thc first disk drive the computer looks to
for a program disk, when you stan the syStem.
Dvorak kt.'}'board: A highly efficient arrangement
of keys that improves typing speed, Compare
QWFRTY keyboard.
dualin·Unc package (DIP): An integrated circuit
packaged in a snun narrow 00x with two rows of
metal pins on Its underside. DIP switches set into
the box allow you 10 change .settings. For example,
printer DIP switches conlrOl funaions such as line
feed. form Icngth, and baud setting.
edge conncctor: A flal connector commonly
found on !he bouom edge of an lf1tenace card,
haVing flal, gold slrips ("fingers") where the card
fits inlO a SIOL
educational software: Soflw:ue thai teaches
somelhing. Compare computer-aided
In>uuctlo~
8O-Column Text card: A card made by Apple
Computer that allows the screen to display as
many as 80 columns (characlers) on a line.
Enter: A key on the Apple IIc's numeric keypad. It
performs the same function as Rcturn in most
applications.
envelope: A paper or plastic slccvc that protects
disks when they're not in use. Compare jackCL
ISO Glossary
error message: The computer's way of alerting
you to a failure in the communication process;
of"len accompanied by a beep.
Escape (Esc): A key thai (in .some p~ms) ukes
you back one level on a menu Of cancels a
procedure .
Extended 8O-Column Text Card: A card nude by
Apple Compuler that allows !he screen 10 display
as many as 8) columns (characlers) on a line and
extends the computer's memory by 64 kilobytes
(64K).
fanfold paper: See pin-feed paper.
fLle: A collection of information stored on a disk
under a particular name. Programs and datll are
both considered files. Also called a documenl.
See also fLlenamc.
file managcment: A general term for copying
liles, deleting liles, llnd other housekeeping
chores involving the conlents of disks.
filename: lbe nllme you give a file before you
Sol\fC it on a disk. A lilename serves as an identifier
for the file File and name became one word in the
ellrly days of computin& beause operating
systems wouldn't llllow a space: cluraaer in II file
name.
firmware: Another name for the programs in
RO.\I (read-only memory). It's more permanent
thlln the software in RAM (ra.ndom-llCcess
memory)--thus the name.
S.2S-lnch disk: A f1exiblc plastic disk 5.25 inches
in dill meter with a thin, flexible jackel Usulllly
callcd a flOPPY ,'Isk
fixed disk: Sec hard disk.
flexible disk: Another name for floppy disk. See
also disk.