The Macintosh Plus is one of the first Apple Macintosh computers and the first Macintosh I ever owned. The Macintosh Plus is normally powered by a Motorola 68000 microprocessor.
To the right is a picture of the motherboard of one of my Macintosh Plusses upgraded to a 68010 microprocessor. After the 68030 powered Macintosh SE/30, I think Macintosh Plus/10 is an appropriate name.
The 68010 does not bring much improvement, multiply/ divide is supposed to be somewhat faster.
The cpu upgrade is interesting, but Plus/10 is mostly meant as a start to do some hardware experiments with this classic Macintosh.
The bottom side of the upgrade board with plenty of empty space for more hardware is pictured below.
More to follow…