# FUNDAMENTALS OF COMPUTER

## BASIC COMPUTER CONCEPTS

### HISTORY OF COMPUTERS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Slide Rule was invented by who in 1622
 A James Napier B William Oughtred C Grace Hopper D Joseph-Marie Jacquard
Explanation:

Detailed explanation-1: -William Oughtred, (born March 5, 1574, Eton, Buckinghamshire, England-died June 30, 1660, Albury, Surrey), English mathematician and Anglican minister who invented the earliest form of the slide rule, two identical linear or circular logarithmic scales held together and adjusted by hand.

Detailed explanation-2: -About 1622, William Oughtred (Figure 1, right), an Anglican Minister, today recognized as the inventor of the slide rule in its actual form, by placing two such scales side by side and sliding them to read the distance relationships, thus multiplying and dividing directly. He also developed a circular slide rule.

Detailed explanation-3: -The slide rule was invented by William Oughtred in the 1600’s, but only began to be widely used in the mid 1800’s after a French artillery officer named Amedee Mannheim developed a version that became popular among engineers.

Detailed explanation-4: -William Oughtred was an English mathematician who is best known for his invention of an early form of the slide rule.

Detailed explanation-5: -After John Napier invented logarithms and Edmund Gunter created the logarithmic scales (lines, or rules) upon which slide rules are based, Oughtred was the first to use two such scales sliding by one another to perform direct multiplication and division. He is credited with inventing the slide rule in about 1622.

There is 1 question to complete.