System 7

Adam Banks remembers the Mac OS that dominated the 1990s

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Released in May 1991, System 7 was one of the biggest ever updates to the classic Macintosh operating system. Codenamed ‘Big Bang,’ it inspired TV adverts touting the Mac as ‘the world’s easiest and most advanced personal computer.’

It was System 7 that introduced familiar features like full multitasking, file and folder aliases, help bubbles, AppleScript, and TrueType outline fonts. And for the first time, the Macintosh user interface showed a touch of colour.