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Macintosh LC III
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1993-03-04
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Macintosh LC III Technical Specifications
Copyright 1993, Apple Computer, Inc.
Technical Specificatons
Microprocessor
> MC68030, running at 25 MHz clock speed; 32-bit data bus
> Socket for optional floating-point unit (FPU)
> Integrated Paged Memory Management Unit (PMMU)
Memory
> Comes with 4 MB of RAM on the logic board
> Expandable to 36 MB of RAM by adding one SIMM to a single 72-pin slot
> Includes RAM disk software
Disk drives
> One built-in Apple SuperDrive 1.4-MB floppy disk drive
> One internal 40-, 80-, or 160-MB hard disk
> Optional external Apple CD-ROM drive
Video display
Supports several displays, including:
> Macintosh 12-inch Monochrome Display
> Macintosh 12-inch RGB Display
> AppleColor High-Resolution RGB Display (13")
> Macintosh Color Display (14")
> Macintosh Portrait Display (15")
> Macintosh 16-inch Color Display
> Third-party monitors
> VGA monitors
Video RAM (VRAM)
> 512K standard supports:
— 32,768 colors on the Macintosh 12-inch RGB Display
— 256 colors on the AppleColor High-Resolution RGB Display (13"),
Macintosh Color Display (14"), and Macintosh 16-inch Color Display
— 256 shades of gray on the Macintosh 12-inch Monochrome Display
— 16 shades of gray on the Macintosh Portrait Display (15")
> 768K option supports:
— 32,768 colors on the Macintosh 12-inch RGB Display, AppleColor
High-Resolution RGB Display (13"), and Macintosh Color Display (14")
— 256 colors on the Macintosh 16-inch Color Display
— 256 shades of gray on the Macintosh 12-inch Monochrome Display and
Macintosh Portrait Display (15")
Interfaces
> Internal expansion slot for one Macintosh LC processor-direct expansion
card
> SCSI interface for connecting up to six external peripheral devices
> Two serial (RS-232/RS-422) ports
> One video port for color and monochrome displays of various sizes and
resolutions
> One sound-output port (monaural) for external audio amplifier or
headphones
> One sound-input port for monaural sound input
> One Apple Desktop Bus (ADB) port for a keyboard, mouse, and other
devices
Sound generator
> Monophonic 8-bit digital-analog conversion using 22-kHz sample rate—
capable of driving stereo headphones or other stereo equipment through
the sound jack
Keyboard and mouse
> Several ADB keyboards with numeric keypads available
> Apple Desktop Bus Mouse II
Clock/calendar
> Custom integrated circuit with long-life lithium battery
Disability access
> CloseView, Easy Access, and visible-beep soft-ware are built in. These
and third-party options provide alternative input and output devices
Power requirements
> Line voltage: 100 to 240 V AC, RMS single phase, automatically configured
> Frequency: 47 to 63 Hz
> Power: 30 W maximum, not including display power
ADB power requirements
> Maximum current draw for all ADB devices: 200 mA (three ADB devices
maximum is recommended)
> Mouse draws 10 mA
> Keyboard draws 25 to 80 mA (varies with keyboard model used)
Size and weight
Main unit:
> Height: 3.2 in. (8.1 cm)
> Width: 12.2 in. (31.0 cm)
> Depth: 15.0 in. (38.2 cm)
> Weight*: 8.8 lbs (4.0 kg)
Mouse:
> Height: 1.3 in. (3.3 cm)
> Width: 2.4 in. (6.2 cm)
> Depth: 4.2 in. (10.7 cm)
> Weight: 4.0 oz (0.10 kg)
* Weight will vary based on internal devices installed
Operating environment
> Operating temperature: 50ºF to 104ºF (10ºC to 40ºC)
> Storage temperature: –40ºF to 116.6ºF (–40ºC to 47ºC)
> Relative humidity: 20% to 80% noncondensing
> Maximum altitude: 10,000 ft. (3,048 m)
Ordering Information
Macintosh LC III 4/80
Order No. M1312LL/A
> Macintosh LC III computer with 4 MB of RAM, 512K of VRAM, built-in
1.4-MB Apple SuperDrive, and internal 80-MB hard disk drive
> Keyboard
> Mouse
> Complete setup, learning, and reference documentation
> System software
> Training disk
> Limited warranty statement
Other Macintosh LC III configurations
> 8 MB of RAM
> Internal 40- or 160-MB hard disk
> Without keyboard
Macintosh LC III expansion cards
> Apple Ethernet LC Card
> Apple IIe Card
Macintosh LC III Upgrade Kit*
Order No. M1386LL/A
> Macintosh LC III logic board and hardware upgrade
> System software
> Complete learning and reference documentation
> Limited warranty statement
* Dealer installation recommended
Developer Services Bulletin Board
3-1-93