| Answer | Crossword Clue |
|---|---|
| PDA | Smartphone predecessor: Abbr. |
| PDAS | Smartphone ancestors (abbr.) |
| PDAS | Smartphone ancestors: Abbr. |
| PDAS | Smartphone predecessors: Abbr. |
| LTR | E-mail predecessor: Abbr. |
| EEC | European Union predecessor: Abbr. |
| CENTO | Baghdad Pact predecessor: Abbr. |
