2. Early machine used for counting and maths. Invented 3
thousand years ago. Invented by the Chinese and Arabic nations.
Ancestor of the modern computer. The Slide Rule Used for
multiplication and division as well as some scientific functions.
Invented around 1620 in England. Used by engineers in the 1950s and
1960s until the invention of the computer and calculator. Used by
early pilots and astronauts!
3. Born 26th December 1791. Died age 79 on the 18th October
1871. An English Mathematician who invented the idea of a
programmable computer. Scientific study and a dislike of untidiness
helped him come up with his invention. Babbage wanted to find a
method by which maths could be calculated mechanically, removing
human sources of error. His inventions were never completed as he
never had enough money. A fully working replica of his machine was
completed in 1991 using his original plans.
4. Charles Babbage created the idea of the use of punched cards
as a way to control a mechanical calculator designed by him. Herman
Hollerith developed punched card data processing technology in
1890. Tabulating Machine Company was formed in 1890 by Herman and
this later became known as IBM. Punch cards still used in the 1970s
up until the modern day computer became more popular. Punch cards
used by governments, banks, schools and police to store and
retrieve information or data.
5. Analogue Older style computers and machinery that use
mechanical parts such as springs, wires and circuits to work and
manage data. Simple analogue machine, an analogue watch: Not as
reliable or accurate as digital. Digital Data is managed by
electronic signals. Modern computers and equipment such as mobile
phones and mp3 players all use digital technology. An electronic
digital watch. Faster and more powerful than analogue
technology.
6. Developed in the late 1960s using digital technology. The
chip or processor found in all modern personal computers. Acts as
the CPU (Central Processor Unit) for a computer, the part of the
computer that processes and manages data. Sometimes called the
brain of a computer. Scientists have recently invented a plastic
processor which will allow for even more impressive technology, for
example computers in food packaging or clothes! It is this
technology will also help reduce the price of computers.
