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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 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 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 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 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 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). "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 This post barely scratches the surface of the evolution of the Microsoft Mouse, the various shapes and sizes of mice