Slide rules were replaced by pocket calculators. This happened very suddenly as soon as the price of the calculator became comparable with the slide rule. The market for the slide rule dried up almost completely, in much of the world, in less than a year. Some specialty slide rules have survived, however.
The electronic calculator.
The slide rule was invented during the period of 1620-1650 by William Oughtred, based on the earlier invention of the Gunter scale by Edmund Gunter. The original slide rule is said to have been circular, and come about 1620 or 1625. The straight slide rule is said to have been invented around 1650.
William Oughtred was the inventor of the Slide Rule which allowed mathematical operations such as multiplication and division to be calculated by reading values from graduated scales. Slide rules were still commonly used in the 1970's and early 1980's but with the invention of modern electronic calculators, the use of the slide rule has declined.
William Ougthered invent Slide Rule in 1622!
AnswerThe slide rule was invented by William Oughtred in 1625. AnswerWe do not know the precise year. A circular slide rule was invented by William Oughtred some time about 1620, and a design of a similar slide rule by Delamain was printed in about 1630. The straight slide rule seems to have been invented later, some time around 1650.
The electronic calculator.
Slide rules were replaced by pocket calculators. This happened very suddenly as soon as the price of the calculator became comparable with the slide rule. The market for the slide rule dried up almost completely, in much of the world, in less than a year. Some specialty slide rules have survived, however.
The slide rule was invented during the period of 1620-1650 by William Oughtred, based on the earlier invention of the Gunter scale by Edmund Gunter. The original slide rule is said to have been circular, and come about 1620 or 1625. The straight slide rule is said to have been invented around 1650.
Before the invention of the pocket or handheld calculator, the slide rule was a popular tool for calculations. William Oughtred made the first slide rule by inscribing logarithms on wood or ivory. The use of slide rules continued until about 1974, after which electronic calculators became more popular.
William Oughtred was the inventor of the Slide Rule which allowed mathematical operations such as multiplication and division to be calculated by reading values from graduated scales. Slide rules were still commonly used in the 1970's and early 1980's but with the invention of modern electronic calculators, the use of the slide rule has declined.
William Ougthered invent Slide Rule in 1622!
The three business machines that have been replaces by computers are th abacus,slide rule, and a loom
AnswerThe slide rule was invented by William Oughtred in 1625. AnswerWe do not know the precise year. A circular slide rule was invented by William Oughtred some time about 1620, and a design of a similar slide rule by Delamain was printed in about 1630. The straight slide rule seems to have been invented later, some time around 1650.
John Jesse Clark has written: 'The slide rule and logarithmic tables, including a ten-place table of logarithms' -- subject(s): Logarithms, Slide-rule 'The slide rule' -- subject(s): Slide-rule
Yes, it is a point on the slide rule. It is exact and not a decimal number.
The slide rule was invented by William Oughtred some time about 1620 or 1625.
the 7x7 rule means theres no more then 7 bullets on a slide and no more then 7 sentences on a slide