Apple · Macintosh

Macintosh SE

Released 1987

A compact monochrome Macintosh with a processor expansion slot and a choice of twin floppy drives or an internal hard disk.

Specifications

Processor: 68000 8 MHz (Macintosh SE)
CPU cores: 1
Memory: 1 MB
Storage: 20 MB
CPU: 8 MHz 68000 with 16-bit data path; no PMMU, FPU, cache or second processor
Memory type: 1 MB standard, expandable to 4 MB using four 30-pin SIMM slots; 256K or 1 MB modules installed in pairs, minimum 150 ns; two-chip 1 MB SIMMs unsupported. 256K ROM; standard capacity confirmed by Apple's original product-line appendix
Storage type: Two 800K removable floppy drives or one 800K drive plus a 20 MB SCSI hard drive in Apple's original advertisement. Apple support lists an internal range from none to 40 MB; no factory RAM/storage pair inferred for its upper limit. Capacities retained in original units
Expansion slots: One SE processor-direct slot (PDS)

Screen size: 9″
Resolution: 512 × 342
Panel: CRT
Display type: 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 generic 512 × 384 table

Ports: Headphone jack
Back ports: Two ADB ports, DB-25 SCSI, DB-19 external floppy, printer and modem serial ports, speaker/headphone output; no Ethernet or external video
Keyboard and mouse: Original Apple advertisement offers a choice of two keyboards

Type: All-in-one
Operating system: macOS
Size and weight detail: Maker 17 lb; 13.6 in height × 9.69 in width × 10.9 in depth, retained in original units
Power supply: Maximum 100 W, 90–270 V, 47–63 Hz, 0.83 A; backup-battery specification unpublished
In the box: Original system software 2.0 package; maker introduced 2 March 1987, discontinued 1 August 1989. Original Apple advertisement confirms retail offering by April 1987, without establishing earliest sale month; released year only

Processor	Memory	Storage	Storage type
68000 8 MHz (Macintosh SE)	1 MB	–	–
68000 8 MHz (Macintosh SE)	1 MB	20 MB	Hard drive

Model	Type	Processor	Memory	Storage	Screen	Weight	Released
AppleMacintosh Plus	All-in-one	68000 8 MHz (Macintosh Plus)	1 MB	–	9″	–	Jan 1986
AppleMacintosh 512Ke	All-in-one	Motorola 68000 8 MHz (Macintosh 512Ke)	512 KB	–	9″	7.5 kg	–
AppleMacintosh XL	All-in-one	68000 5 MHz (Macintosh XL)	512 KB – 1 MB	10 MB	12″	–	1985