In 1986 and early 1987, PC's did not have more than 640kb of RAM, just about all the programming tools for IBM PC's were limited to 64kb program size, and there were all kinds of really mickey-mouse ways to try to get around those limits. There were 80286 computers that could use 16 MB without too much trouble, but in 1987 programming tools that could use the full 640 kb of the 8086 and link separately compiled code showed up (e.g. Turbo Pascal 4.0), the same year the the 32-bit 80386 desktop PC's were launched. Borland's Pascal and Delphi pretty much matched the capabilities of Microsoft's C and C++ through those first disorienting years of change.