Apple · Macintosh

Macintosh Plus

Released January 1986

A compact monochrome Macintosh with expandable memory, an 800 KB floppy drive and external SCSI storage support.

Model history · 3 models, 1984–1986

Specifications

Processor: 68000 8 MHz (Macintosh Plus)
CPU cores: 1
Memory: 1 MB
CPU: 8 MHz 68000 with 16-bit data path; no PMMU, FPU, cache or second processor. BYTE descriptive coverage identifies Motorola and 7.8336 MHz; maker's nominal 8 MHz retained
Memory type: 1 MB standard, expandable to 4 MB using four 30-pin SIMM slots; maker lists 256K or 1 MB modules installed in pairs, minimum speed 150 ns, and excludes two-chip 1 MB SIMMs. 128K ROM
Storage type: 800K removable floppy drive with automatic loading; no internal hard drive or hard-drive interface. External storage connects over SCSI
Expansion slots: None

Screen size: 9″
Resolution: 512 × 342
Panel: CRT
Display type: Built-in one-bit monochrome CRT; 9-inch diagonal confirmed in Apple's original SE/30 owner manual, Macintosh product-line appendix. Maker's explicit 512 × 342 note corrects its generic 512 × 384 table

Ports: Headphone jack
Back ports: DB-25 SCSI, DB-19 external floppy, printer and modem serial ports, speaker/headphone output; separate keyboard and mouse connections. No Ethernet or external video
Keyboard and mouse: Separate mouse and keyboard; BYTE describes the keyboard's numeric keypad and cursor keys

Type: All-in-one
Operating system: macOS
Size and weight detail: Maker 16.5 lb; 13.6 in height × 9.6 in width × 10.9 in depth, retained in original units
Power supply: Maximum 60 W, 105–125 V, 50–60 Hz, 0.5 A; 4.5 V alkaline
In the box: Original system software 1.1; maker introduced 16 January 1986, discontinued 15 October 1990. Release month from Macworld's historical timeline; exact first-sale day unverified

Processor	Memory	Storage
68000 8 MHz (Macintosh Plus)	1 MB	–

Model	Type	Processor	Memory	Storage	Screen	Weight	Released
AppleMacintosh SE	All-in-one	68000 8 MHz (Macintosh SE)	1 MB	20 MB	9″	–	1987
AppleMacintosh XL	All-in-one	68000 5 MHz (Macintosh XL)	512 KB – 1 MB	10 MB	12″	–	1985
AppleMacintosh 512Ke	All-in-one	Motorola 68000 8 MHz (Macintosh 512Ke)	512 KB	–	9″	7.5 kg	–

Previous model: Macintosh 512K. Newer model: Macintosh Classic.