We have worked with a large collection of systems, languages, and packages in our careers. The following table lists some of the more well-known systems, languages, and packages. While the list is long, it is by no means exhaustive.
| OpenVMS (Alpha/VAX) |
| Windows NT (Intel) |
| Windows 95/98 (Intel) |
| Windows 3.1 |
| RSX-11M, RSX-11M-PLUS, RSX-11S |
| MS-DOS |
| C/C++ |
| MACRO |
| FORTRAN |
| PL/I |
| BASIC |
| PASCAL |
| COBOL |
| DCL |
| PDP-11 |
| DECnet |
| TCP/IP |
| Ethernet |
| LAN |
| WAN |