Video game:Timex Sinclair 1000 Supermaze

According to the Wikipedia, 1982's Timex Sinclair 1000--also known as the TS1000--was the first computer produced by Timex Sinclair, a joint-venture between Timex Corporation and Sinclair Research. The TS1000 was a slightly modified Sinclair ZX81 and, like that model, used a form of BASIC as its primary interface and programming language. To make the membrane keyboard less cumbersome for program entry, the TS1000 used a shortcut system of one-letter "keywords" for most commands (i.e. pressing Shift-"P" would generate the keyword "PRINT"). The TS1000 clued the user in on what to expect by changing the cursor to reflect the current input mode. The TS1000 sold for $99.95 in the US when it debuted, making it the cheapest home computer to date at the time of its launch. Its advertising angle was "the first computer under $100". The black and white display showed 32 columns and 24 lines (22 of which were normally accessible for display and 2 reserved for data entry and error messages). The limited graphics were based on geometric shapes contained within the operating system's non-ASCII character set. The only form of long-term storage was to plug into an often unreliable home tape cassette recorder. The 16K memory expansion sold from $50 to over $250. A shortage of the memory expansions coupled with a lack of software which ran within 2K meant that the system had limited use for anything other than introducting the user to programming. Home computer magazines such as Compute! of the era showed enthusiasts how to interface the computer with various kinds of equipment, providing the opportunity of learning about early speech synthesis technology through a Speak & Spell, robotics control through the memory port, and scrolling text displays for advertising. Over time, the TS1000 spawned an enormous cottage industry of third-party add-ons designed to help remedy its limitations. Full-size keyboards, speech synthesizers, sound generators, disk drives, and memory expansions (up to 64K) were a few of the options available. Languages like Forth and Pascal as well as BASIC compilers, and assemblers augmented the TS1000's programming possibilities.