Saturday Mac riddles 171

Here are this weekend’s riddles to entertain you through family time, shopping and recreation.

1: Afterthought of different types initially in a printer.

2: Once royal and faithful kind with the seventh system.

3: Shop sign with hot metal became standard fifteen years ago.

To help you cross-check your solutions, there’s a common factor between them.

I’ll post my solutions first thing on Monday morning.

Please don’t post your solutions as comments here: it spoils it for others.