Name/Title
1979- TI 99/4 (2/2025)Tags
Texas InstrumentsDescription
1979- A less-successful—and quite rare—TI-99/4 model, which was released in late 1979 at a price of $1,150. In terms of expansion, initially the idea behind the TI-99/4 was that peripherals would be connected serially to the console and each other, in a 'daisy-chain' fashion. The 'sidecar' expansion units could be connected together in a continuing chain, but could rapidly occupy an entire desktop and cause crashes and lockups due to the large numbers of connectors on the system bus. Early models (the TI-99/4, identified by its keyboard and "(C)1979 TEXAS INSTRUMENTS" on the title page) included a built-in equation calculator, but in the 99/4A ("(C)1981 TEXAS INSTRUMENTS") this feature was discontinued. All consoles included TI BASIC, a strict ANSI-compliant BASIC programming language interpreter which was largely incompatible with the more popular Microsoft BASIC. Later consoles, identified by "(C)1983 TEXAS INSTRUMENTS V2.2" on the title page, also removed the ability for the system to execute unlicensed ROM-based cartridges, locking out third-party manufacturers such as Atarisoft.Acquisition
Acquisition Method
EBayDate
Aug 4, 2007
