- During World War II, Bell furthered their relay calculator by adding the ability to program the machine by using punch paper. Punch paper was fed into the computer, and the machine read the patterns in the paper as data.
This is featured post 1 title
Replace these every slider sentences with your featured post descriptions.Go to Blogger edit html and find these sentences.Now replace these with your own descriptions.
This is featured post 2 title
Replace these every slider sentences with your featured post descriptions.Go to Blogger edit html and find these sentences.Now replace these with your own descriptions.
This is featured post 3 title
Replace these every slider sentences with your featured post descriptions.Go to Blogger edit html and find these sentences.Now replace these with your own descriptions.
Tuesday, 5 July 2011
The Programmable Computer
22:30
live kahns
Simple Computers
22:29
live kahns
- In 1940, a calculator prototype was demonstrated by George Stibitz, a researcher of the Bell Telephone Company. This calculator could be accessed remotely through special telephone lines.
Early Computers
22:27
live kahns
- The earliest computer is the abacus, which is still in use today. In 1642, Blaise Pascal invented a manual calculator with numbers that rolled over like an odometer. The first concept like a modern computer was the analytical engine designed in 1834. Charles Babbage designed it to use punch cards. The analytical engine wasn't completed, but it was the basis of modern computers.
Microprocessors
22:24
live kahns
- In 1971 Intel created the first microprocessor. This allowed computers to be much smaller than previous incarnations. The first microprocessor was known as the Intel 4004; later Intel developed the 8080, which became the first commercially viable microprocessor. The Intel 8080 sold for $360, considerably less than the millions of dollars charged for the IBM 360 mainframe. In 1975 the 8080 was used in the MITS Altair computer, which was the first PC.
The First Computer Language
22:23
live kahns
- Programming early computers quickly became somewhat of a hassle. In 1953 Grace Hopper invented the first high level computer language. It helped humans to simplify the binary code used by the computer so they could more simply dictate the computer's actions. Hopper's invention was called Flow-matic, and was applied to the Mark I. This language became COBOL, an extremely popular language developed in 1959 and modified over the years to keep pace with changing technology.
Electronic Digital Computers
22:21
live kahns
- In order to better solve mathematical equations for aiming artillery shells, the U.S. military invested heavily in computer technology. With the help of military money, in 1944 IBM and Harvard collaborated to make the Mark I. This was the first programmable electronic digital computer created. However, it was not purely electrical. It relied on switches, relays, rotating shafts and clutches. It weighed 5 tons and used 500 miles of wire. It employed binary code, a system of 1s and 0s. This is the same basis for digital technology today.
Early Technology
22:20
live kahns
- As far back as 300 B.C. humans had tools to help in computations. The first gear driven calculating machine was most likely the "Calculating Clock." It was created in 1623 by Wilhelm Schickard. The "calculating clock" and other similar inventions lacked accuracy because it was impossible to create gears of the required precision at the time.
The History of Computer Technology
22:19
live kahns
Computer technology has advanced very quickly over the years. The term computer originally referred to people. It was a job title for those who did repetitive work with math problems. The first programmable digital computers were invented in the 1940s. They were as big as living rooms and were about as powerful as modern day calculators. The PC, or personal computer, became prominent in the 1980s. Today computers are used for every thing imaginable, and the future of computers is guaranteed to bring many changes to modern society
