Thanks to all who replied...! I later found excellent summaries of all this in Wikipedia..... 1) "Commodore Basic" 2) "Microsoft Basic" I guess this all combined tells me what I wanted to know! I do like my Basic 3.31 which came with my Compaq Portable III in 1988. The documentation is excellent. …

Thanks to all who responded. This complements what I have read on Wikipedia. My interest in the "older version" of BASIC is simple. I worked a lot with Fortran 1962 - 1996 for some scientific and engineering computing. Subsequently I needed a simple way to do some mathematical calculations for my …

What was the last version of "classic" BASIC released by Microsoft? By "classic" I mean with line numbers (similar to Fortran) prior to "Structured Code" and prior to "Object Oriented Code" and prior to "Visual BASIC" ?? I have Compaq BASIC Ver 3.31 (Copyright 1987 MicroSoft) running under DOS Vers …

Jo22, Thank you for the additional ways to "mount"! I'm trying them out now, now that my PC Navigator program is up and running!! AAGPCN

Ripsaw8080, Thank you !! I tried it and it worked perfectly!! Now I can do all the simple mathematical calculations I had to leave 25 years ago!! I had thought I needed to get my VIC 20 or Commodore 64 up and running again...since my Compaq Portable III has a "dysfunctional" display! Regards

I am trying to run my "simpler" BASIC in DOSBox in Win 10- e.g with line numbers and text. I have my Compaq Portable III BASIC V 3.3 (1987), but DOSBox returns the message "Incorrect DOS version". Mine is in Compaq MS-DOS V 3.3. How do I run this "simpler" BASIC form...it is similar to Commodore 64 …

Thanks to Shagittarius…!!….It worked after some fiddling!! The "Directories" had to be shortened to 8 characters and I used the DOS commands "DIR" and "CD" to find my way through. I finally had to do it in steps, although there may be a faster way. I did.... Z:> MOUNT C C:\USERS\ Z:\>C: C:\>ANTHON …

I am trying to run PC Navigator (copied from my old PC) in Windows 10. When I enter z:\>MOUNT C C:\DOSBoxPr it says "Directory C:\DOSBoxPr doesn't exist". However, it is there under "Documents". How do I do this "MOUNT" in Windows 10??