Unit1 Evolution of Computer Class-6 cbse IT class VI unit 1 notes study material
Unit1 Evolution of Computer Class-6 Computer Science Class-VI Unit 1 Evolution of Computer A. Fill in the blanks : (main frame, 300BC, 1642, analytical engine, John Napier) 1. Abacus was invented in 300BC . 2. Concept of decimal was introduced by John Napier . 3. Pascaline was invented in 1642 year. 4. Analytical Engine the base of today's computer. 5. Main Frame computers are used in Banks, Railways etc. Label the picture B. Match the Devices with their inventors Name of Device Name of Inventor 1. ABACUS a) Dr. Herman Hollerith 2. PASCALINE b) John Napier 3. NAPIER'S BONES c) Charles Babbage 4. TABULATING MACHINE d) Chinese 5. DIFFERENCE ENGINE e) Blaise Pascal Ans— 1. ABACUS à d) Chinese 2. PASCALINE à e) Blaise Pascal 3. NAPIER'S BONES à b) John Napier 4. TABULATING MACHINE à a) Dr. Herman Hollerith 5. DIFFERENCE ENGINE à c) Charles Babbage C. Very Short Answer Questions: a) Name two example of SUPER Computer . Ans-Example : Cray