Computers had been around since the 1940s, but they were slow, hugely expensive and very unfriendly.
During the 1980s computers became smaller and cheap enough for people to have in their office and at home. These were the new personal computers (PCs) as opposed to the giant computers that had previously existed.
During the 1980s the PC got a control called a mouse which allowed you to control with computer without writing codes. It revolutionised computers.
