| Answer | Crossword Clue |
|---|---|
| DOS | PC control program |
| DOS | PC program |
| MSDOS | PC program |
| APP | PC program |
| TELNET | PC-linking program |
| APP | "Killer" PC program |
| MSDOS | Basic PC program |
| MSDOS | Early PC program |
| EXE | PC program extension |
| ESC | PC program ender |
| APP | PC program, briefly |
| QUIT | PC program command |
| PAINT | Basic PC program |
| EXE | PC program suffix |
| ICON | PC program designation |
| EXE | PC program ending |
| COMPUTERVIRUS | Problematic program for a PC |
