Atari Portfolio User Manual

Filenames
usually
refer to
lhe informalion
cohtained
in the lile,
such as
TAxEsJor
lax inlormalion,
or
IAxEs_07,
TAxEs_aa.
and TAxES_89lor
a senes
ol lax lnlormalron
liles
An ellension
indicates
Ihe lile
lype
Cerlatn
rypes
ol liles
must
have
spectltc €xlensions.
For
example,
lhe .EXE
extenston
lndrcalBs
lo
your
computer
that
lhe ltle is
an executable
lile.
or
a
lrle conlarntng
rnstruclions
lhe compuler
can
carry
out. ll
you
remove
the exlenston,
the
compuler would
nol rec6gnrze
llie
,ile
as an execulable
ltle
Nole: Do
you
nolice
something
odd about
lhe file-
names
TAxEs_o?.
TAxEs-8a,
and
TAxEs a9?
An
underline
characler
separates
TAXEs Irofiilhe
vear
Since lhe spacecharacler
is an rllegalcharactei
(you
cannol
use il in lile
or direclory
names)
someltmes
the
underline
character ts
L,sed
lo stmulare a
space
WILDCARD
CHARACTEBS
When
you
are selecltng
a
group
ol ltles wtlh
stmtlar lilenames,
rl.rs somelrmes
easier
lo define
lhe
group
by ustng wildcard
characlers.
You would
use one
ol lhe two
wildcard characters
(lhe
aslerisk
or the
quesxon
mark) when
typing
in lhe file
specilrcalion
lor
lhe selected
group.
An aslerisk in
a lile specilication
stands
lor all characlers
and
combinalrons
ol
characlers, and
can replace
an enltre lile
name
or exlension.
For example,
lhe lile
specilicatton
...
calls lor the
display ol allli,enames
with
aliexlensjons.
A lile specificalion
will olien
have an
aslerisk as the
name but
specily
an extensron.
For exarhple.
the iile
spectltcation
..TXT
selects
all lrlenames
with Ihe.TiT
exlension. For
example.
lhe
group
crealed
wtth this
lile specilicalion
mrght contah
theso
Iiles:
REPOBT.TXT
STOCK.TXT
MEMO TXT

Atari Portfolio Specifications

General

Processor	Intel 80C88
Clock Speed	4.9152 MHz
RAM	128 KB
Battery	3 x AA batteries
Manufacturer	Atari Corporation
Release Year	1989
Display	LCD, 240x64 pixels
Ports	Parallel and serial ports
Power	3 x AA batteries or external power supply
Storage	128 KB internal, external solid-state memory cards (up to 4MB)
Operating System	DIP-DOS (MS-DOS compatible)