Q: What programming languages work on the HP Palmtop?

A: Anything that will run on a PC-XT, including various flavors of C, C++, Pascal, Basic, etc., may run on the Palmtop. QBASIC.EXE is not included in the subset of DOS programs found on the Palmtops D drive. But it will run if its copied from a MS-DOS 5.0 machine.

There are several ways to write programs with software already built into the 100/200LX ROM. You have the keyboard macro application, Lotus 1-2-3, HP Calc's Solver application (finds roots of equations, among other things), DEBUG.EXE (from DOS), and the DOS batch file interpreter. HP Calc's Solver application can be used with Lotus to backsolve, that is, adjust the value of one independent cell of a spreadsheet to produce a desired result in another, calculated, cell.