The Tandy 1000 was the second try of Tandy to create an IBM compatible PC. Actually, this began as a clone of the IBM PC junior. IBM’s answer to build a decent game machine (but failed). Tandy copied the good parts and improved the parts that killed the IBM PCjr.
The Tandy 1000 can, like the IBM PCjr, produce 16 colors at the same time and has 3-voiced audio. They also made sure the joystick from the Color Computer series worked on these machines.
Tandy 1000 and later series were the reason Tandy made computers well into the 90s.