5
18
1
bit
4KHz
DATA" i
"
2
KHz
DATA"O"
1
=
Check sun code (after every
8
s
t
eps or one data
memory
.
)
2
=
8
steps of program or reserve program
3
=
End code of recording.
4
=
This gap, composed of all
"l
"
,
is
inserted at each step the recording exceeds 80
steps
,
during
which teime the next 80 steps of data to be input
is
prepared in the input
buffer
.
5
=
All
"l"
is
recorded for
a
period of about
6
seconds in order to avoid non-recordable area
located at the top of the tape and
is
also used for the cueing of the recording head.
6
=
With this program or reserve program name
is
indicated.
7
=
File name
8
=
Data memory
is
indicated with this
code
.
9
=
Area for one data memory.
Recording method
Data "O" and
"l"
are identified by changing the frequency of the recording signal
(F4")
.
Data memory recording format
Recording
format of
program or reserve program
Contents
of
program
or
reserve program
80 steps
4
1+1
5-1. Recording
Recor
di
ng
metho
d
5. CASSETTE OPERATION
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