Microprocessor
--------------
68HC000, running at 16 MHz
Address Bus: 24-bit
Registers (32-bit): 17
Addressing Modes: 14
Memory
------
- Comes with 2MB pseudostatic RAM on the logic board, and one memory
expansion slot.
- Expandable to 8MB of RAM by installing a RAM expansion card in the
expansion slot.
Disk storage
------------
- One internal 20MB SCSI hard disk
- External 1.4MB floppy disk drive; reads, writes, and formats Macintosh,
MS-DOS, OS/2 and ProDOS disks
Display
-------
- 9 inch (229 mm) diagonal
- Backlit Supertwist liquid crystal display
- 640 by 400 pixels
Battery
-------
- Sealed lead-acid, 2.3 ampere-hours, provides 2 to 4 hours of use before
recharging is necessary
- Recharge time: 3 hours
- Three non-rechargeable disk-type Lithium backup batteries (type CR-2430)
Keyboard
--------
- Built-in keyboard with standard Macintosh layout
- Two-level tilt adjustment
Trackball
---------
- dual button trackball, 25 mm diameter
Clock/calendar
--------------
- CMOS custom chip with long-life lithium battery
Interfaces
----------
- One Apple Desktop Bus (ADB) port for low-power keyboard, mouse, and
other devices using a two-speed, synchronous serial bus
- One RS-422 serial port for LocalTalk networking, printers, modems, and
other devices
- One HDI-30 SCSI port for hard disks, scanners, CD-ROM drives, and other
devices
- One monophonic sound output port for external audio amplifier
- One HDI-20 floppy disk drive port for the external 1.4MB floppy disk
drive
Modem
-----
- Optional internal 2400-baud data modem with facsimile at 9600 baud;
includes facsimile send software
- Error correction and compression: MNP 4, 5 and V.42, V.42bis
Sound generator
---------------
- Apple Sound Chip provides 8-bit sound capable of driving headphones or
other stereo equipment through the sound port.
Disability Access
-----------------
- CloseView, Easy Access, and visible beep included with system software.
These built-in solutions and third-party options provide alternative
input and output devices for people with disability.
ADB Power Requirements
----------------------
- Maximum current draw for all ADB devices is 200 milliamps (a maximum of
three ADB devices is recommended)
Electrical Requirements
-----------------------
- Line voltage: 100 to 240 volts
- Frequency: 50 to 60 Hz
Environmental Requirements
--------------------------
- Operating temperature: 50 to 104 degrees F (10 to 40 degrees C)
- Storage Temperature: -40 to 65í C (-40 to 149í F)
- Relative humidity: 20% to 80% noncondensing
- Altitude: Operating: 3048 m (10,000 ft.) maximum
Shipping (non-operating) 0 to 15,000 ft. (0 to 4,722 m)
Size and Weight
---------------
- Height 1.8 inches (4.6 cm)
- Width 11 inches (28.0 cm)
- Depth 8.5 inches (22.0 cm)
- Weight 5.1 lb. (2.3 kg)
Noise Level
-----------
Noise free except for floppy or hard disk use.
Article Change History:
22 Mar 1995 - Updated altitude information.
26 Aug 1993 - Updated to correct storage temperature range.
02 Jun 1993 - Updated to correct voltage specification.
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