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Macintosh Plus

M0001A · 1986–1990 · all-in-one

Specifications

Cpu: Motorola 68000 8 MHz
Ram: max: 4 MB (4×1 MB 30-pin SIMM) · base: 1 MB
Ports: SCSI (DB-25) · Keyboard (RJ-11 style) · Mouse (DE-9) · RS-422 serial ×2 (printer, modem) · External floppy (DB-19) · Audio out (mono)
Display: 9" CRT 512×342 monochrome
Storage: base: 800 KB floppy, no internal drive · options: External SCSI hard drives (e.g. Apple Hard Disk 20SC)
Os Support: latest: System 7.5.5 · shipped: System 3.0 (Finder 5.1)
Release Price: $2,599

Variants

Colors

Beige(Original 1986 finish)Platinum(From 1987, matching the rest of the Apple lineup)

Upgrade paths

RAM

4 MB (4×1 MB 30-pin SIMM) · First compact Mac with SIMM slots. Opening the case needs a long T-15 Torx driver and care around the CRT; some early boards need a resistor moved for 4 MB.

~$20 today

MODERATE

storage

External SCSI drives, chainable · First Mac with SCSI. No internal drive bay, so all hard disks hang off the external DB-25 port. Modern SCSI emulators (BlueSCSI, SCSI2SD) work well.

EASY