I hope that you enjoyed Saturday’s Mac Riddles, episode 315. Here are my solutions to them.
1: It came with a tumbler from Camelot in 1993, then opened in 2008.
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It came with a tumbler (an acrobat) from Camelot (its original internal name) in 1993 (first released on 15 June 1993), then opened in 2008 (when it was adopted as an open ISO standard).
2: Replacement for 3 to avoid royalties with transparency has just turned three.
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PNG
Replacement for 3 (it was developed by Thomas Boutell and others to replace GIFs) to avoid royalties (those were imposed on GIFs because of their use of LZW compression) with transparency (it supports a transparency layer) has just turned three (its latest version 3.0 was released in June this year).
3: CompuServe animated its palette with 256 colours but we still can’t agree how to say it.
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GIF
CompuServe (released by CompuServe in 1987) animated (it supports animated images) its palette with 256 colours (it only supports palettes with 256 colours) but we still can’t agree how to say it (there has been a long-running dispute as to whether its ‘g’ is hard like ‘gift’ or soft like ‘gin’).
The common factor
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They were each intended to be portable, universal file formats.
I look forward to your putting alternative cases.
The Eclectic Light Company 