I started using email in 1982 while working at Tandem Computers (SW fault-tolerant minicomputers that ran ATM networks and stock/commodity exchanges, not Tandy Corporation, Radio Shack's parent) on their internal network. Had a C64, a 1541 external floppy, and a daisy wheel electronic typewriter with an interface that Mrs. SVPete used for word processing, until the floppy drive went out and we didn't have the $$ to replace it. My first time on the Internet was in 1996 or 1997, using a SPARCstation 10 and Netscape Navigator during breaks at work for personal stuff, and for business-related stuff.
At home, we had a Packard Bell 486SX Win 3.11 computer that had a 2400 baud built-in modem, and we started with AOL. Our next computer had 14.4K, then 56K. Finally we switched to Earthlink and got a DSL modem. We've used another ISP, and have gotten a wireless network since then.
My first experiences on discussion sites was in 1997, on a now-defunct naval history site and a similarly now-defunct homeschooling site. My first news/politics discussion site was in 1998, CapitolHillBlue ReaderRant. At the time it was conservative-libertarian, but some time in the early 2000s it went liberal, and has become approximately as loony-toony-Prog as DU (TMN would find a good number of kindred souls there, too). It was on Kaleidoscapes, the homeschooling site, that I started using the forum name I've used in most I'net forums, "PeteS in CA". When I came here in 2009 I used "SVPete" to avoid complications WRT another (defunct since 2012) discussion site on which I was posting and was a Mod.