The DAI personal computer is an early home computer from the Belgian company Data Applications International.The DAI came to market in 1980. It provided many pioneering features such as high resolution color graphics, a maths co-processor, and a pre-compiling BASIC interpreter. However, it never became a commercial success. History The computer was initially designed by DAI for the UK subsidiary of Texas Instruments for use with the PAL televisions used in Britain. TI US did not want to build a PAL version of their TI-99/4A home computer, although they subsequently authorized one after they saw the DAI. The Dutch educational TV broadcast company Teleac wanted to use the DAI to teach computing, some years before the BBC's similar initiative using the BBC Micro. However, they chose the Exidy Sorcerer instead, because the DAI was not completely ready. The machine was also used to create graphics for TV programmes in the early 1980s. Main technical specifications The DAI was based on a very early 8-bit microprocessor, the Intel 8080 A, a CPU that was more advanced than the prior 8008. It contained on a single printed circuit board all the needed circuitry, some 120 individual ICs. The futuristic-looking white enclosure also held a high quality keyboard, which was uncommon for the time. As a computer display, any TV could be used. The DAI could display text and high resolution color pictures and contained a memory controller that enabled it to use up to of DRAM. This memory was divided in three regions (memory banks) that could contain either 4K or 16K memory chips. By using memory map switching, a total of 72kB of memory was addressable. The DAI also had five programmable interval 64µ - 16ms interval timers that could generate interrupts. The built-in interrupt handler chip could also handle two external interrupt inputs and the interrupts of two serial RS232 UARTS. The DAI featured a DAI/Indata DCE parallel I/O bus for parallel high speed I/O. The DAI also had 3 sound generators and 1 noise generator, and was capable of generating stereo sound. Graphics capabilities with 48k RAM installed allowed up to 528 x 240 pixels in 4 out of 16 color palette in 4 successive blobs, leaving 16k programming space. The graphics modes were controlled by a device called Programmable Graphics Generator, implementing several techniques: decoupling physical scan lines from the 'logical' lines. The repeat count of physical scan