improved model, the CC-40 Plus, was in the final stages of development and included a cassette port. The project was canceled when Texas Instruments discontinued the 99/4A and exited the home computer market. Most of the architecture of the CC-40 Plus was reused in the Texas Instruments TI-74. The TI-74 changed the physical footprint of the Hexbus port and rename it Dockbus. Old Hexbus peripherals could even be used on the TI-74 with an adapter. Also in development was the Compact Computer 70 (codenamed "Superstar"). The CC-70 was to have four cartridge ports, more RAM, and an 8 x 80 display with graphics capability. The CC-70 mock-up from Calculator division lead CB Wilson showed up on eBay in 2020. Engineer Steven Reid has stated that the first run of chips for the CC-70 failed, and TI discontinued the Home Computer division in October 1983 before the chip issues could be corrected. References Thomas, David (1983). Learn BASIC: A Guide to Programming the Texas Instruments Compact Computer 40. Texas Instruments, Inc. and McGraw Hill, Inc. . External links CC-40 images and documentaiton 99er page on the CC-40 OLD-COMPUTERS.COM online-museum CC-40 page Curtis McCain Page on the CC-40 Computer-related introductions in 1983 Home computers Portable computers