How about the Texas Instruments TI-99 home video game system/ computer from 1980? Voice synthesizer, gigantic coax converter, plus more pixelated games that you could ever possibly want. Hunt the Wumpus? Anyone?
My dad brought home a 99/4A one night in 1980, and it's still in the basement to this day. Haven't powered it up in a long time, but last time I did, it was fully functional, and with the exception of the TI LOGO II cartridge, every last piece of commercial software still worked. I whiled away many a happy hour playing Parsec, Moon Patrol, Pole Position, TI Invaders, Car Wars, etc. Strangely enough, I have never actually used the thing with the RF Modulator (the coax converter you mention) hooked to a color TV - only ever hooked it up to an old 9-inch Zenith B/W portable. Some day I'm gonna drag that classy-looking old beast out (we had the nice one with the black keyboard and the brushed stainless outer shell) and play some color Parsec.
The TI was eventually retired to storage when my folks "upgraded" to a couple of Apple IICs, which eventually got aftermarket memory expansion to 1MB (one of the memory boards even allowed us to boot off a special disk into CP/M). We used a Scribe and both types of Imagewriter printers with those.
Played with Commodores (C64, C128) and TRS-80s (models II, III, and IV) at school - even have a box somewhere that has about 7 disks full of trs-80 games that likely don't work any more.
I learned to type in high school on an IBM PS2/25 running OS/2 (I think), even used an original
IBM PC in a lab in college - it was an intel-based microprocessor lab; and some years back someone's senior design was some breakout/breadboard box that allowed you to jack directly into the bus on the thing or something, and we did a bunch of little projects using it. The old IBMs (complete with the steel-cased model "M" keyboards) were booted off MSDOS 6 diskettes, and each used InterSrv/InterLink (!!!) to access the hard drive of a 486DX2/66 PC sitting next to it for additional storage space. We did all our programming with MASM.
My first PC was my 486 in college - a DEC slimline desktop model that I overclocked from 33MHz to 40MHz. Worked good, as did the DEC Multijet 1000 inkjet printer though the rollers on the sheet feeder add-on eventually clogged up with dust - still want to clean that up some day, the printer still seems to work, and might be fun as a basic line printer for a PC devoted to Fax duty or for a Linux build.