| Answer | Crossword Clue |
|---|---|
| PASCAL | Inventor of the first digital calculator |
| PASCAL | Inventor of first digital calculator |
| CASIO | Maker of the first electric compact calculator |
| ENIAC | The first digital computer |
| OTIS | Inventor of the first passenger elevator |
| VOLTA | Inventor of the first electric battery |
| BAIRD | John Logie .., inventor of the first mechanical TV |
