Apple Macintosh Plus

Overview
The Macintosh Plus is the third model in the Macintosh series of computers. The  Macintosh Plus was introduced to the public on January 16, 1986 just two years after the original Macintosh was released and had a price tag of 2,599$ (1,578.76£, 2,309.21€.) As it was an improvement to the 512K, it shipped with 1MB of RAM standard which is expandable to 4MB of RAM with an external SCSI peripheral bus along with smaller improvements. It originally had the beige colour, (like most computers of that era) but in 1987 the colour of the case was changed to a warm-grey. It was the earliest system to run System 7 O.S.