Macintosh PlusThe Macintosh Plus was Introduced: January 16, 1986 introduced two years after the original MSRP: $2599 Macintosh. It CPU: Motorola 68000 originally shipped CPU speed: 8 MHz with a beige case, but was later manufactured Shipped with system version: 1.1 in the long-lived RAM: 1 MB, expandable to 4 MB "platinum" color. Discontinued: October 15, 1990 It was the first Macintosh model to include a SCSI port, thus making it compatible with (and boosting the popularity of) the external Apple SCSI Hard Disk 20 (HD SC20), a 20 MB hard drive which was introduced by Apple in 1985. An all-in-one unit, the Plus had a one-bit, 9" black & white display, common to Macs of the period. The 72-dpi resolution gave the appearance of grayscale. It had one 3 1/2 inch floppy disk drive, variable speed (incompatible therefore with the PC drives), with a capacity of 800 KB. The computer included a keyboard (which was not an extended keyboard) and a one-button mouse. It did not have a fan, making it extremely quiet in operation. The applications MacPaint, MacDraw and HyperCard were bundled with the Mac Plus. Third-party software applications available included Microsoft WordExcel, and Microsoft PowerPoint, as well as Aldus's PageMaker. This was the introduction of GUI versions of Microsoft Word, Excel, and PowerPoint on any PC. For those of you who are nostalgic, there is a program called vMac that will emulate a Mac Plus on a variety of platforms, including Unix, Windows, DOS and Mac OS.