I agree - it's a useful BASIC that can do math and fits in 4 or 8 kilobytes of memory. And Bill Gates complaining about pirating $150 Altair BASIC inspired the

I agree - it's a useful BASIC that can do math and fits in 4 or 8 kilobytes of memory. And Bill Gates complaining about pirating $150 Altair BASIC inspired the creation of Tiny BASIC, as well as the coining of "copyleft".