The Apple Macintosh Quadra 900 is a personal computer that was designed, manufactured, and sold by Apple from 1991 to 1992 as part of the Macintosh Quadra series. The computer has been introduced on October 21, 1991, and its price started at $7200.
The new Quadra 900 features a 25 MHz Motorola 68040 processor, 4 MB of RAM, 160 MB or 400 MB hard drive, CD-ROM drive, and 1.44 MB Floppy drive.
This Macintosh has been discontinued on May 18, 1992.
Today Macintosh Quadra 900 is 31 years old!
Macintosh Quadra 900 Release Date and Original Price
| Introduced | October 21, 1991 |
| Discontinued | May 18, 1992 |
| Model Identifier | 28 |
| Model Number | M4200 |
| Order Number | M4210LL/A (no hard drive) M4230LL/A (160 MB hard drive) |
| Original Price | $7,200 $8,500 |
| Colors | Platinum |
| Weight | 25.3 Ibs. 11.475 KG |
| Dimensions | 18.6” H x 8.9” W x 20.6” D 47.24 cm H x 22.6 cm W x 52.32 cm D |
Tech Specs
Processor
| Processor | Motorola 68040 |
| Processor Speed | 25 MHz |
| Architecture | Unknown |
| Number of Cores | 1 |
| System Bus | 25 MHz |
| Cache | 8 KB L1 |
| Coprocessor | Integrated FPU |
Storage & Media
| Storage | 160 MB 400 MB |
| Media | 1 – CD-ROM 1 – 1.44 MB Floppy 1 – DDS-DC drive (Optional) |
Memory
| Built-in Memory | 4 MB |
| Maximum Memory | 256 MB |
| Memory Slots | 16 – 30 pin SIMMs |
| Minimum Speed | 80 ns |
| ROM | Unknown |
| Interleaving Support | No |
Display
| Built-in Display | None |
Graphics
| Graphics Card | None |
| Graphics Memory | 1 – 2 MB (via four sockets) |
| Display Connection | 1 – DB-15 |
Expansion
| Expansion Slots | 5 – NuBus 1 – PDS (Cache Bus) |
| Hard Drive Interface | SCSI |
Software
| Original OS | System Software 7.0.1 |
| Maximum OS | Mac OS 8.1 |
| Firmware | Macintosh ROM |
Connections
| Ethernet | AAUI-15 |
| Modem | None |
| ADB | 1 |
| Serial | 2 |
| SCSI | 1 – DB-25 |
| Floppy Port | None |
| Audio In | 1 – 3.5-mm mono input jack |
| Audio Out | 1 – 3.5-mm stereo output jack |
| Display | 1 – DB-15 |
Power
| Backup Battery | 3.6 V lithium |
| Maximum Continuous Power | 303 W |
| Line Voltage | Unknown |
References:
Apple Support – Macintosh Quadra 900: Technical Specifications
