history of computers

key broad

1873

named qwerty

mainframe computers

1950

first know mainframe computer was called the ibm mainframe computers were the first automatic computers

calculator

1960

used to calculate data

microprocessors

1971

these power 85% of the worlds computers created by ted hoff first one called 4040

first ever pc was made

1975

the altair 8800 invented by ed roberts it was a computer kit that had to be hand built and only worked half the time

homebrew computer club

Mar 5, 1975

first computer club they came together and used there love for technology to developed better and more advanced PC that eventually turned in to what we see today

Microsoft

Apr 4, 1975

created by bill gates and Paul Allan to develop and sell BASIC interpreters for the Altair

visicalc

1978

was the first visible calculator created by Harvard business student Dan Bricklin