16 MHz Motorola 68020 with a 16-bit data path and 0.25 KB L1 cache; no standard paged memory-management unit or floating-point coprocessor
GPU
Integrated video has 256 KB VRAM, supporting 8-bit colour at 512 × 384 or 4-bit at 640 × 480; 512 KB VRAM upgrade permits 16-bit colour at 512 × 384 or 8-bit at 640 × 480
Memory type
2 MB soldered to the logic board plus two 30-pin SIMM slots, populated as a matched pair; 100 ns memory and 2–10 MB total supported by Apple; 512 KB ROM
Storage type
40 MB internal SCSI hard drive and 1.44 MB floppy in the standard configuration reported by Low End Mac; a dual-floppy education version was also offered
Expansion slots
One LC processor-direct slot; optional 68881 floating-point card occupies it
Display
Screen
None built in
Connections
Ports
Headphone jack
Back ports
Apple Desktop Bus, DB-15 video, DB-25 SCSI, printer and modem serial ports, microphone input and sound output; no built-in Ethernet or external floppy port
External displays
Built-in video supports 512 × 384 and 640 × 480 Apple displays; colour depth depends on fitted VRAM
Speakers
Internal speaker with mono audio input and output
Design and power
Type
Compact
Weight
4 kg
Width × depth × height
310 × 389 × 74 mm
Operating system
macOS
Size and weight detail
Apple's 2.9 × 12.2 × 15.3 inch and 8.8 lb reference dimensions; metric fields are rounded conversions
Power supply
Maximum 50 W; 90–240 V AC, 50–60 Hz; 3.6 V lithium clock battery
In the box
Original System Software 6.0.7. Apple lists 15 October 1990 as introduction; Low End Mac also dates release to October 1990
Configurations
Processor
Memory
Storage
Storage type
68020 16 MHz (Macintosh LC)
2 MB
40 MB
Hard drive
Pros and cons
Pros
+Built-in colour video with dedicated VRAM
+Slim desktop case
+Audio input and an LC expansion slot
Cons
−16-bit memory data path limits the 68020 processor
−No memory-management or floating-point unit as standard
