Macintosh IIsi

The Apple Macintosh IIsi is a personal computer that was designed, manufactured, and sold by Apple from 1990 to 1992 as part of the Macintosh II series of Macintosh computers. The computer has been introduced on October 15, 1990, and its price started at $8970.

The new Macintosh IIsi features a 20 MHz Motorola 68030 processor, Motorola 68882 FPU coprocessor, 2 MB or 5 MB of RAM, 40 MB / 80 MB or 160 MB hard drive, 1.44 MB Floppy drive, and as an option Macintosh II video card.

The product has been discontinued on March 15, 1993.

Today Macintosh IIsi is 32 years old!

Macintosh IIsi
Source: wikimedia.org – Macintosh IIsi

Macintosh IIsi Release Date and Original Price

IntroducedOctober 15, 1990
DiscontinuedMarch 15, 1993
Model Identifier18
Model NumberM0360
Order NumberM0363LL/A
M0364LL/A
Original Price$3,770
$4,570
ColorsPlatinum
Weight10 Ibs.
4.535 KG
Dimensions4” H x 12.4” W x 14.9” D
10.16 cm H x 31.49 cm W x 37.84 cm D

Tech Specs

Processor

ProcessorMotorola 68030
Processor Speed20 MHz
ArchitectureUnknown
Number of Cores1
System Bus20 MHz
Cache0.5 KB L1
CoprocessorMotorola 68882 FPU (Optional)

Storage & Media

Storage40 MB
80 MB
160 MB
Media1 – 1.44 MB Floppy

Memory

Built-in Memory2 MB
5 MB
Maximum Memory65 MB
Memory Slots4 – 30 pin SIMMs (Groups of 4)
Minimum Speed100 ns
ROMUnknown
Interleaving SupportNo

Display

Built-in DisplayNone

Graphics

Graphics CardNone
Graphics Memory64 – 320 KB (Shared system RAM)
Display Connection1 – DB-15

Expansion

Expansion Slots1 – NuBus or Cache Bus (PDS)
Hard Drive InterfaceSCSI

Software

Original OSSystem Software 6.0.6
Maximum OSMac OS 7.6.1
FirmwareMacintosh ROM

Connections

EthernetNone
ModemNone
ADB1
Serial2
SCSI1 – DB-25
Floppy Port1 – DB-19
Audio In1 – 3.5-mm nano input jack
Audio Out1 – 3.5-mm stereo output jack
Display1 – DB-15

Power

Backup Battery3.6 V lithium
Maximum Continuous Power160 W
Line VoltageUnknown

References:
Apple Support – Macintosh IIsi: Technical Specifications

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