Because it's there, Jack. Code comes ... it never goes.
73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 3/31/2018 7:03 PM, Jack Brindle wrote:
This is a remnant of days long gone when the PC - DOS and early Windows systems used serial-port connected mice. It used the sequence to detect the presence of a mouse. The Mac has never used asynchronous serial-port based mice, instead using a special bus, followed by ADB in early Macs (starting with the Mac Plus), then USB after it was adopted. Thus it does not mess with the serial ports on startup. I now wonder why Microsoft maintains this arcane procedure since its utility has long passed into history. Jack, W6FB
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