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Charles Babbage
The first machine that actually approximated the idea of a computer. The machine was called the "Difference Engine" -
Analytical Engine
Several machines had been built which rivaled the Analytical Engine in complexity. -
Lee De Forest
Lee De Forest invented the electric tube. -
Harvard Invention
A computer developed at Harvard University by Howard H. Aiken was the first programmed controlled calculator. Very close to a fully operated computer. -
Transistor
Development of transistor. -
Microprocessors
Microprocessors were developed. -
3rd & 4th Generation computers
they were developed -
Cray 1
Cray 1 was discovered -
Personal Computers
The Commodore Business Machines introduced their first personal computer. -
Apple II
Apple II released. -
Radio Shack
They introduced a new computer called the TRS-80. It was less expensive than the Apple computer. -
Intel Microprocessors
Intel introduced the 8086 microprocessor. -
TRS-80
It was the most popular computer sold through out the 1970-1980's. -
IMB>Microsoft
IMB asked Microsoft to help with the new invention of the PC. They agreed and it became one of the most popular products in the world.
