3.3D Evolution of Computing
The first computers were imagined as machines with cogs and gears, but they only became practical in the 1950s and 60s when semiconductors were invented. In the 1970s, a company called IBM became a leader in the computer industry. But in the 1980s, software started to become more important. By the 1990s, a company called Microsoft led the way by creating programs like word processors that ordinary people could use....