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Macintosh Classic

M0420 · M1420 · 1990–1992 · all-in-one

Specifications

Cpu: Motorola 68000 8 MHz
Ram: max: 4 MB (1 MB onboard + expansion card with 2×1 MB SIMM) · base: 1 MB
Ports: ADB · SCSI (DB-25) · RS-422 serial ×2 (printer, modem) · External floppy (DB-19) · Audio out (mono)
Display: 9" CRT 512×342 monochrome
Storage: base: 1.4 MB floppy only, no internal HDD (base model) · options: 40 MB SCSI HDD (2 MB RAM configuration)
Os Support: latest: System 7.5.5 · shipped: System 6.0.7
Release Price: $999

Upgrade paths

RAM

4 MB via Apple RAM expansion card + 2×1 MB SIMM · Base 1 MB is soldered; the expansion card adds 1 MB and two SIMM slots. Compact case teardown applies.

~$30 today

MODERATE

storage

Internal 3.5" SCSI drive or solid-state emulator · HDD models are a straight swap for a larger SCSI disk or a BlueSCSI/SCSI2SD.

MODERATE