Wednesday, July 16, 2014
Tuesday, July 15, 2014
COMPUTER HISTORY
A BRIEF COMPUTER HISTORY
The computer as we know it today had its beginning with a 19th century English mathematics professor name Charles Babbage.
He designed the Analytical Engine and it was this design that the basic framework of the computers of today are based on.
Generally speaking, computers can be classified into three generations. Each generation lasted for a certain period of
time,and each gave us either a new and improved computer or an improvement to the existing computer.
First generation: 1937 – 1946 - In 1937 the first electronic digital computer was built by Dr. John V. Atanasoff and Clifford Berry. It was called the Atanasoff-Berry Computer (ABC). In 1943 an electronic computer name the Colossus was built for the military. Other developments continued until in 1946 the first general– purpose digital computer, the Electronic Numerical Integrator and Computer (ENIAC) was built. It is said that this computer weighed 30 tons, and had 18,000 vacuum tubes which was used for processing. When this computer was turned on for the first time lights dim in sections of Philadelphia. Computers of this generation could only perform single task, and they had no operating system.
Second generation: 1947 – 1962 - This generation of computers used transistors instead of vacuum tubes which were more reliable. In 1951 the first computer for commercial use was introduced to the public; the Universal Automatic Computer (UNIVAC 1). In 1953 the International Business Machine (IBM) 650 and 700 series computers made their mark in the computer world. During this generation of computers over 100 computer programming languages were developed, computers had memory and operating systems. Storage media such as tape and disk were in use also were printers for output.
Third generation: 1963 - present - The invention of integrated circuit brought us the third generation of computers. With this invention computers became smaller, more powerful more reliable and they are able to run many different programs at the same time. In1980 Microsoft Disk Operating System (MS-Dos) was born and in 1981 IBM introduced the personal computer (PC) for home and office use. Three years later Apple gave us the Macintosh computer with its icon driven interface and the 90s gave us Windows operating system.
As a result of the various improvements to the development of the computer we have seen the computer being used in all areas of life. It is a very useful tool that will continue to experience new development as time passes.
Click link to get back to previous page. Computer Fundamentals
To go to the next topic please click. Computer Hardware
Click on the link to go back to the home page. Computer Lesson
Back to the top of the page
MUSLIM POPULATION.
MUSLIM POPULATION IN THE WORLD.
How Many Muslim Countries Are There in the World?
There are more or less 57 Islamic states. The majority religion in these states is not necessarily Islam, but leaders in these countries believe it is necessary to speak with one voice to safeguard the interests and secure the progress and well-being of their people and of all Muslims in the world.
If you want to see Muslim population in the world CLICK HERE
Monday, July 14, 2014
Thursday, July 10, 2014
Flat World Knowledge entered into a unique licensing agreement with Virginia State University in 2010. For eight core business courses, students gained access to all electronic formats of select textbooks including study aids. Unlike traditional licensing models, students retain access to course materials and study aids indefinitely through their Flat World student account. Audio textbook versions and ePub files similarly do not expire. The price for this universal digital access license is cited as $20 per student by the Richmond Times-Dispatch.
Subscribe to:
Posts (Atom)