Question

D. Long answer questions. 1. Describe any two early developments.​

Answer 1

Explanation:

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Answer 2

Ans. The two early developments are:

Ans. The two early developments are:  Abacus- Abacus was the first mechanical calculating device, developed by Chinese

Ans. The two early developments are:  Abacus- Abacus was the first mechanical calculating device, developed by Chinese about 5000 years ago. It was used for counting large numbers and doing arithmetic

Ans. The two early developments are:  Abacus- Abacus was the first mechanical calculating device, developed by Chinese about 5000 years ago. It was used for counting large numbers and doing arithmetic calculations such as addition, subtraction, multiplication and division. An abacus

Ans. The two early developments are:  Abacus- Abacus was the first mechanical calculating device, developed by Chinese about 5000 years ago. It was used for counting large numbers and doing arithmetic calculations such as addition, subtraction, multiplication and division. An abacus consists of rod on which sets of beads are inserted .The rods from right to left

Ans. The two early developments are:  Abacus- Abacus was the first mechanical calculating device, developed by Chinese about 5000 years ago. It was used for counting large numbers and doing arithmetic calculations such as addition, subtraction, multiplication and division. An abacus consists of rod on which sets of beads are inserted .The rods from right to left represents units, tens, hundreds and so on. Calculations are done by sliding the

Ans. The two early developments are:  Abacus- Abacus was the first mechanical calculating device, developed by Chinese about 5000 years ago. It was used for counting large numbers and doing arithmetic calculations such as addition, subtraction, multiplication and division. An abacus consists of rod on which sets of beads are inserted .The rods from right to left represents units, tens, hundreds and so on. Calculations are done by sliding the beads across the rods.

 Napier’s Bones- In 1617, John Napier made a, manually operated calculating device,

 Napier’s Bones- In 1617, John Napier made a, manually operated calculating device, known as Napier’s bones. It was a set of eleven rectangular rods marked with

 Napier’s Bones- In 1617, John Napier made a, manually operated calculating device, known as Napier’s bones. It was a set of eleven rectangular rods marked with numbers. These rods were used to perform multiplications. Later on, improved

 Napier’s Bones- In 1617, John Napier made a, manually operated calculating device, known as Napier’s bones. It was a set of eleven rectangular rods marked with numbers. These rods were used to perform multiplications. Later on, improved version of this device was used for division and finding square roots of numbers.