Right as Commodore was launching the Commodore 64 in 1982, they released another machine with 128K of RAM, 80 column display, 2 MHz CPU, a SID chip, an extended keyboard with numeric keypad. It wasn't the Commodore 128 falling through a time-warp from 3 years in the future, it was the B128-80, a very interesting machine which was quickly abandoned by Commodore. To support 8-Bit Show And Tell: Become a patron: https://patreon.com/8BitShowAndTell One-time donation: https://paypal.me/8BitShowAndTell 2nd channel: https://www.youtube.com/channel/UCAgWzEh5c8391eJnELDy9OA Links: Steve Gray's CBM-II pages: http://www.6502.org/users/sjgray/computer/cbm2/ CBUG Escape Issue 1: http://archive.6502.org/publications/cbug_escape/cbug_escape_issue_01_fall_1985.pdf Space Chase: http://www.spacechase.de/ Commodore 700 reference: https://archive.org/details/commodore-700-reference-manual David Viner's tech info: https://www.davidviner.com/cbm3.html CBUG / B128 History: https://www.insectria.org/b128/dusk.html Bo Zimmerman's B128 page: http://www.zimmers.net/cbmpics/cbs.html End credits music by https://bedfordlevelexperiment.bandcamp.com/ Index: 0:00 About the B128-80 2:09 A look at the keyboard 3:43 Looking at the case and ports 5:27 A bit of history: CBUG to the rescue 6:41 Some BASIC 4.0+ exploration: RAM use and IF/ELSE 10:21 INSTR(), Error TRAPing 13:33 Using the ML Monitor: SYS 4 16:04 Playing Space Chase (released 2016): SID Music 18:30 Inside the case 20:15 Check the links, and thanks!