SPECIFICATIONS
2.1
MICROPROCESSOR: 4 MHz Z80A, 8-bit CPU
Memory:
Keyboard:
Video Display:
Floppy Disk Drives:
64K RAM bytes, expandable
to
128K bytes 4K boot ROM, 2K video memory
70-key standard typewnter keyboard, including 12-key numeric entry keypad. Special keys include
BREAK, CTRL, CAPS, CLEAR, plus three programmable special function keys (F1, F2, and F3).
High-resolution
9"
black and white display monitor with 64 or 32 characters per line by 16 lines
in
Model
III
mode and 80 or 40 characters per line by 24 lines
in
Model 4/4P mode. Displays upper
and lower case ASCII characters, with descenders, 96 special characters, 64 alternate characters,
64 graphics characters, plus reverse video of
all
ASCII alpha-numeric characters.
Two built-in single-sided, double-density
5-114"
thin-line floppy disk drives. Each drive stores up to
184K bytes. Data transfer rate
is
250K bits per second.
2.2 PERIPHERAL INTERFACES
Standard:
Optional:
I/O BUS for connection of hard disk and other peripherals.
Serial Interface (RS-232-C port) One RS-232-C Serial Communications
Interface port which allows
asynchronous
and
synchronous
transmission.
Mates
with
08-25
connector
on
back
of
the
Model
4P.
Parallel
Printer
Interface
Connection
to
a
line
printer
via
the
34-pin
connector
on
the
back
of
the
Model4P.
640 x 240 High-Resolution graphics board
Auto-answer Modem (300 baud)
2.3 POWER REQUIREMENTS
105-130 Vac, 60 Hz
240 Vac, 50 Hz (Australian)
220 Vac, 50 Hz (European)
Grounded Outlet
Maximum
Current
Drain:
1.7
Amperes
Typical Current Drain: 1.5 Amperes
2.4 OPERATING TEMPERATURE: 55 to 80
0
F (13 to
2T
C)
2.5 DIMENSIONS: 9.3" H x 16.5" W x 13.25"
D,
261bs carrying weight.
9
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