Basica was Basic interpreter included with IBM DOS in early PCs.
GWBasic was a Basic interpreter 100% compatible with Basica wich was shipped with Ms DOS. The main difference between both interpreters was that Basica required the so-called “ROM BASIC”.
To execute gwbasic code in a modern PC you need either:
Here you can see some info and programs you can run with GWBasic.
SAVE “FILENAME.TXT”,A
instead).