Review in Computer 2

A device that accepts information in digitalized data and manipulates it to produce a useful result.

• Computer

• Monitor

• Vehicle

One of the earliest counting devices invented by Chinese. It has frames, parallel wires and beads that has a corresponding value.

• Calculator

• Computer

• Abacus

It is used for approximate multiplication and division. William Oughtred an English mathematician invented this in 1632.

• Abacus

• Slide Rule

• Napier's Bone

Use to add, subtract, multiply, and divide and is made of copper and steel. Gottfried Wilhelm Von Liebnitz invented this in 1694.

• Pascaline

• Difference Engine

• Leibnitz Calculator

Made of sticks where the logarithm values were carved. Invented by John Napier in the year 1617.

• Napier's Bone

• Jacquard's Weaving Loom

• Abacus

It is a 50 gear-driven one function calculator that is used to add numbers. Invented by Blaise Pascal in 1642.

• Analytic Engine

• Pascaline

• Analytic Engine

Designed by Charles Babbage in 1820's.

Solve mathematical problems with a capacity of very large number of digits.

• Difference Engine

• Abacus

• Slide Rule

This machine punched holes in cards, which the counted by the counter and displayed the numbers on the window.

• Analytic Engine

• Hollerith's Tabulator

• Jacquard's Weaving Loom

Father of Modern Computers

• Blaise Pascal

• William Oughtred

• Charles Babbage

It was operated with thousands of vacuum tubes. It can perform long calculations in an hour. It is too noisy and very big that it could fill the entire room.

• ENIAC

• MARK I

• Supercomputer