The Mac Plus was the first Apple computer to utilize user-upgradable SIMM memory modules instead of single DIP DRAM chips. The Macintosh Plus was the last classic Mac to have an RJ11 port on the front of the unit for the keyboard, as well as the DE-9 connector for the mouse models released after the Macintosh Plus would use ADB ports. SCSI ports remained standard equipment for all Macs until the introduction of the iMac in 1998. The SCSI implementation of the Plus was engineered shortly before the initial SCSI spec was finalized and, as such, is not 100% SCSI-compliant. Introduced as the Macintosh Plus, it was the first Macintosh model to include a SCSI port, which launched the popularity of external SCSI devices for Macs, including hard disks, tape drives, CD-ROM drives, printers, Zip drives, and even monitors. and a double-sided (800K bytes) disk drive, all in the standard Mac box". It is the earliest Macintosh model able to run System Software 5, System 6, and System 7, up to System 7.5.5, but not System 7.5.2.īruce Webster of BYTE reported a rumor in December 1985: "Supposedly, Apple will be releasing a Big Mac by the time this column sees print: said Mac will reportedly come with 1 megabyte of RAM. Originally, the computer's case was the same beige color as the original Macintosh, Pantone 453 however, in 1987, the case color was changed to the long-lived, warm gray "Platinum" color. As an evolutionary improvement over the 512K, it shipped with 1 MB of RAM standard, expandable to 4 MB, and an external SCSI peripheral bus, among smaller improvements. The Macintosh Plus computer is the third model in the Macintosh line, introduced on January 16, 1986, two years after the original Macintosh and a little more than a year after the Macintosh 512K, with a price tag of US$2,599. September 27, 1996 27 years ago ( ) (operating system updates)ġ MB RAM, expandable to 4 MB (150 ns 30-pin SIMM) October 15, 1990 32 years ago ( ) (production) Macintosh Plus at the Museo Nacional de Ciencia y Tecnología in Spain
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