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New blog post: Of Mice And When

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Jeff Parsons 2017-08-28 11:46:36 -07:00 • committed by Jeff Parsons
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@ -40,7 +40,8 @@ Even this Wikipedia article on the [Microsoft Mouse](https://en.wikipedia.org/wi
The first Microsoft Mouse, introduced in 1983, was available in Serial and Bus versions. The Serial version required
a serial port using a DB-25 connector, while the Bus version came with a small ISA card that connected to the mouse
with a smaller DB-9 connector.
with a smaller DB-9 connector. For more details (with pictures), check out this 2014 article on
[The Original Microsoft Mouse](https://communities.intel.com/docs/DOC-22714).
Fast-forward to 1986, when Microsoft announced the InPort chip. As of May 9, 1986, all of its "Bus" mice were
reportedly shipping with the InPort chip, along with a new, round 9-pin connector (not to be confused with the round
@ -52,6 +53,7 @@ different programming interfaces. They used the same range of ports by default
InPort chip added a number of registers that could only be accessed by first writing a register number to the card's
"Address" port (0x23C) and then reading or writing that register through the card's "Data" port (0x23D).
---
This post barely scratches the surface of the evolution of the Microsoft Mouse, the various shapes and sizes of mice