Tim Berners Lee
Facts about him
Sir Timothy John "Tim" Berners-Lee, also known as TimBL, is an English computer scientist, best known as the inventor of the World Wide Web. He was born on June 8 in 1955 (age 59), in London.
His mother was called Mary Lee Woods and his father was called Conway Berners Lee. The Queen's College Oxford (1973–1976), Emanuel school (1969–1973).
This is a video of Tim Berners Lee
•Alan Mathison Turing, OBE, FRS was a British pioneering computer scientist, mathematician, logician, cryptanalyst, philosopher, mathematical biologist, and marathon and ultra distance runner. He was educated in Sherbone school ·Princeton University (1936 - 1938) · Kings College (1931 - 1934) · Institute for advanced study · St Michaels School.
The four Generations
The 4 generations
The first generation of computers are vacuum tubes for circuitry and magnetic drums .
Disadvantage= The computers were very large in size, They where not very reliable.
Advantage= These computers could calculate data in milliseconds.
The second generation of computers are transistors.
Disadvantage=Constant maintenance was required.
Advantage=They were more reliable than the first generation of computers.
The third generation of computers are integrated circuits.
Disadvantage=air conditioning was required.
The fourth generation of computers are microprocessor.
Advantage= less need of repair.
Inputs and Outputs
inputs and outputs
An input device is something you connect to a computer that sends information into the computer. An output device is something you connect to a computer that has information sent to it.
A printer is an output device.
It receives information from a computer and prints out a physical copy onto paper or card.
A motherboard is a printed circuit board containing the principal components of a computer or other device. A motherboard contains significant sub systems such as the processor and other components.