Tandy TRS-80 Owner Manual & Programming Manual page 56

HOW MUCH CAN ONE
DISK
HOLD?
Note: There are
five
blank spaces between the
%
char-
acters in lines
20 and
30.
Counting the
two
%
char-
acters, this
string
field (for
printing
PEN
and
PAPER)
contains seven
bytes.
Now
the data
is
already in
an
attractive print
for-
mat.
You
can input
and
print
it
using a simple
line
input
program. Erase memory,
type
and
RUN:
more programs which
will
put
the
same data
in
direct access
files.
CHAPTER CHECKPOINT
sen
INPUT
and
IINT
line
cause
i
a
PRINT
tine
IINT
strings?
10
OPEN
"I"
>
*1
>
20 IF
EOFtl)
=
-1
30
LINE INPUT
»1
*
40 PRINT At
50
GOTO 20
G0
CLOSE
*1
1.
What
is
the
minimum
size
of a disk Sle?
Why
can
't
it
be smaller?
9.
Hnvr
rfnan
th*
Cnmn
gter
WJRJtTFf
ntimhe
OFFICE/DAT"
"'""
THEN G0
A*
All
of
the
files
we've created
in this
chapter are
sequential access.
The
next chapter
compares
four
m^diM
jftlef}
3.
How
does
it
WRITE
strings
4.
What
is the'
difference betwi
LINE INPUT?
5.
What
does a
comma
in
a
PI
the
Computer
to
do?
6.
What
does
a
semi-colon
it
cause
it
to
do?
7.
How
does
the
Computer
PE
46