4
1.1.2 Superb operability
The
MZ-80B becomes a BASIC language computer after the
SB-5
510 BASIC interpreter has been
loaded and activated
by
the
IPL.
You
can now perform a wide variety
of
operations with
the
MZ-80B,
such
as
data
input
and
output,
text
file generation, debugging and file access.
The
MZ-80B's superb operability and expandability will help
you
to
perform such operations with
ease.
• Keys on
the
console are divided into groups according
to
their functions.
The
main typewriter
keyboard and
the
numeric pad are located at the front
of
the
console.
The
special function keys,
cursor control keys and cassette tape deck control keys are located under
the
CRT display screen
and cassette tape deck.
All ordinary operations
other
than power
on/off
can be performed with these keys.
• Alphabetic characters, numerics and symbols are all
input
from the typewriter keyboard. The
(RYSJ
key allows
input
of
reverse characters and
the
r-GRPH I key enables
input
of
graphic
patterns
from
the keyboard.
Small letters are normally
input
from the console
of
the
MZ-80B
by
pressing the[ SHIFT I key.
A command
is
provided, however, which makes it possible
to
reverse
the
shift function
so
that
capital letters are
input
when the[ SHIFT I key is pressed. Tabulation settings can also be made
by
the
program.
These functions improve
the
efficiency
of
message coding and table and graph editing.
The
cursor
control keys allow these tasks
to
be performed even more efficiently.
• A separate numeric pad including 0
~
0,
[
oo
I ,
[!]
,
c=::J
and 8 keys
is
also provided. This
is convenient when
input
of
large amounts
of
numeric data
is
required. The numeric keys are
scanned
by
a different scan signal
than
that
which scans
the
numeric keys
on
the typewriter key-
board. This makes various applications possible.
For
example, keys
on
the numeric pad can be
easily operated with
the
right hand
as
real time operation interruption keys.
• Functions
of
the
10 special function keys are all user definable. Therefore,
by
defining a special
function key as a frequently used command,
the
command can be executed
just
by
pressing
the
key once.
The MZ-80B uses the high speed Z80A-CPU which allows instructions
to
be executed in half the time required by
the
Z80-CPU.
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