The rise of the CD-ROM in the 1990s brought great excitement to artists and storytellers interested in the digital medium. At last they could explore the concept of multimedia -- sound, animation, text, and graphics could be put together in one coherent piece of artistry and shipped out to millions of people.

It worked in theory, but not so much in practice. Most multimedia CD-ROMs released commercially were awkward to use, uneven in their artistry, and downright boring to explore. Many tried to cross the line from “interactive multimedia” to “game” -- to mixed success.

But one in particular was always likely to be an exceptionally successful -- in quality if not sales numbers -- piece of interactive multimedia. It was Ceremony of Innocence, an adaptation of artist and author Nick Bantock's Griffin and Sabine trilogy.

For much of my existence on this earth, I have been an unashamed Civilization addict, Sid Meier's historically-themed strategy masterpiece. The series has done more to cultivate my interests today than anything else, helping to determine my majors in school (history and computer science), my fascination with interactive systems, and my goal of a career in game design.

I was only four years old when the original Civilization came out in 1991, and I knew nothing of the game until a few years later, when my brother entered private school. He came home after school one day with Civilization installed on his laptop and showed it to me. I was hooked instantly -- before I’d even played it. The developers had abstracted an entire alternate history of Western civilization into this simple game that offered so much emergent complexity.

Mac OS X turns ten this week. That's ten years since the first public release of the jewel in the crown that signifies Apple's rise from the brink of death with a modern and "revolutionary" clean slate. But it wasn't the first time a piece of Apple software saved the company -- that honour goes to the original Macintosh operating system: System 1.0. Read on to learn how Apple changed its fortunes and revolutionised computing back when the terms GUI and mouse were foreign concepts.

The core of the Macintosh experience was never the attractive industrial design, the sense of superiority, or the use of a strange one-button mouse -- although those elements were vitally important. From the very beginning, even before the first Mac hit the market in 1984, right through to the latest iMac or Macbook models, the Macintosh was about providing the most accessible and intuitive interaction possible between humans and computers.

Computers should be easy to use, with user interfaces that Jack and Jill Smith who just walked in off the street can use comfortably with almost no instruction. Gestures, not typed commands; desktops, buttons, and icons -- not command lines, carriage returns, and terminals -- have clear analogies to things from everyday life that people without a degree in computer science can understand. This is at the heart of the Apple philosophy, as it has existed since that fateful trip to the Xerox labs in December 1979.