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The Aoolicatrons wrndow dlsplavs a
hsl
ol lhe six
bLllll-,n
appl_
cahon!'Tne
Drrectory and File window displays
a
llslol
dilec-
tories and liles
resrdrng
on
lhe
cullenlly
opened
dIlve. Belore
learnrno how
lo acces; these llsls, il
is
rmpollanl Io Lndelsland
the
ele;enls
ol the varrous rtems lound
wllhn
ihe
isls
Files and Filenames
A
colleclion ol inlolmalion qrouped loqelher under
a
singie
lilename is called
a
lile.
The[e are iwo types ol illes.
Execut_
aDle
liles (also called
proqlams oI app,icaiions) conlain
rnslrliclrons
lol lhe coirpJler lo caIIy oul.
llosl
ol the time lhe
insiruclions contained in execulabie iiles are used lo work with
inlormalion in data iiles. A data Iile
is a
colleclion ol
inlolma-
tion
thal contains no insiruclions lor lhe compulel
Files
are,dentii,ed bv lilenames. You can name the Iiles you
create
and chanoe
ihe names ol exisllnq
llles New'les
are
named wrlh.n
an;ppl,calton
when
lhey aIe clealed.
The
iilename is made up
o,
two
palls: lhe name and lhe lhree
character exlenslon. ln ihe lollowing example, ihe name
is
saMPLE and
lhe exlension
is.ExE
SAMPLE.EXE
ll
I
oxtension
I
name
(up
lo
eiqhl characlers)
The name section ol
a
Iilename can be
lrom one io eighl
cnaracters
(le
eIs, svmbols, or numDers)
long
A
Iilena-ne
extension can be
lroii
one
Io
lhlee characlers long
separaied lrom the Iilename by
a
period
The lollowing
or exlension:
.
Greater
lhan symbol
.
Plus sign
.
Hyphen/minus sign
.
Colon
.
semicolon
.
Comma
.
Aslorisk
.
Ou€slion
mark
1
characlers cannol be used within a lile nanre
Iorl
I
?2
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