After the great IBM launched the first Personal Computer (5150) in 1981 and the BIOS was easy to copy, Tandy also wanted to get a share of the IBM market.
In 1983, the successor of the 8086, the 80186, was used to make the first IBM PC compatible from Tandy.
The machine was very powerful for the time and even Bill Gates of Microsoft was impressed and made a version of Windows especially for this computer. In addition, the Tandy 2000 were also used for development.
However, the Tandy 2000 proved to be only BIOS compatible with an IBM PC. Most software from that time spoke directly to the hardware and that was not compatible. This led to a lot of software not functioning or not functioning properly, after which the Tandy 2000 was replaced by a Tandy 1000 within a year.
This is the only computer from Tandy that has both Tandy and TRS-80 on the front and this also marked the end of the era that TRS-80 was used. All computers after this time had only the Tandy brand.
There has also been talk of a Tandy TRS-80 Model 5 in succession to the TRS-80 Model 4. This would contain color, built-in hard disk and easier to expand. No further details are known, but it seems very likely that the Tandy 2000 has become what the TRS-80 Model 5 should have been.