I used to use TI-99 in the early 80s and then was one of the first people ever online when AOL was called Q-Link for the C-64 lol.
Texas Instruments TI-99/4A - Wikipedia, the free encyclopedia CPU = TI TMS9900 @ 3.0 MHz It would load software from standard cassette tapes I tell you! And you'd hear it too, almost like a dial-up modem sound. The first 16 bit pc for home use.
http://www.qlinklives.org/
Never had a Windows machine though until Windows 98.