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The computers were first built in the 1940s and ______.
1950s
The computers were __________.
enormous
The word "computer" used to mean a _________.
person
In the 1820s a British mathematician called Charles Babbage invented a machine that did very difficult ________ automatically.
calculation
Babbage then started work on another machine, called the Analytical Engine.
True
The first computer were too big, heavy and cheap to have in your home.
False
In 1977 the second computer, the Apple 2, appeared.
True
Apple is not the only famous computer company which still uses it own operating system.
False
As computer chips became smaller during the _______, companies began to make laptops.
1980s
Today 's computer chips work so fast, they can even understand spoken language.
True
