Evolution of Computers and its applications

Blaise Pascal invented the first mechanical adding machine in 1642
Baron Gottfried Wilhelm von Leibniz invented the first calculator for multiplication in 1671
Keyboard machines originated in the United States around 1880
Around 1880, Herman Hollerith came up with the concept of punched cards that were extensively used as input media until late 1970s
Charles Babbage is considered to be the father of modern digital computers
- He designed “Difference Engine” in 1822
- He designed a fully automatic analytical engine in 1842 for performing basic arithmetic functions
- His efforts established a number of principles that are fundamental to the design of any digital computer

Some Well Known Early Computers

Computer Generation

“Generation” in computer talk is a step in technology. It provides a framework for the growth of computer industry
Originally it was used to distinguish between various hardware technologies, but now it has been extended to include both hardware and software
Till today, there are five computer generations

Qus. 1 : Which of the following refer to the fastest, biggest and most expensive computer

Qus. 2 : The first computer made available for commercial use was

Qus. 3 : Third Generation of Computers used

Qus. 4 : Name the first supercomputer developed in India

Qus. 5 : Which Unit is used to major the Speed Of A Super Computer ?

Qus. 6 : Who is considered the father of computing for his conceptual design of the first automatic digital computer, the Analytical Engine?

Qus. 7 : Which of the following is considered the first electronic general-purpose computer?

Qus. 8 : What was the primary purpose of the ARPANET, the precursor to the modern internet, when it was created in the late 1960s?

Qus. 9 : What technology enabled the development of the graphical user interface (GUI), popularized by the Apple Macintosh in the 1980s?

Qus. 10 : What is the primary purpose of a supercomputer?

Qus. 11 : In Which Generation Time sharing, Real time Network and Distributed Operating Systems were used?