Saturday Mac riddles 241

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

1: Energy unit and a pin for your washing is still most common for images.

2: Petty quarrel was the standard format for scanners from 1986.

3: Early Scot mixed vector and bitmap graphics from QuickDraw.

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.