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CBSE, CLASS 6, IT COMPUTER, Ch:1 Evolution of Computer

CBSE, CLASS 6, IT COMPUTER, Ch:1 Evolution of Computer Early Calculating Devices Abacus (2700 BC) ·         It was designed for carrying out simple calculations such as addition, subtraction, multiplication and division. ·         It has two sections namely heaven, the upper deck, and earth, the lower deck. Napier’s bones (1617) ·         Napier’s bones was invented about 402 years ago by a Scottish mathematician, John Napier. ·         It was considered to be the world’s first calculator that could multiply, divide and find the square root of a number. Pascal’s calculator (1652) ·         The Pascal’s Calculator or Pascaline was invented by Blaise Pascal. ·         It was the first ever mechanical calculating machine or calculator with numerical wheels. Arithmometer (1820) ·         The Arithmometer was invented by Thomas de Colmar in 1820. ·         The Arithmometer could perform addition, subtraction, multiplication and also division. It was based on Leibnitz’s technology. Differenc

CBSE, class 6 , IT COMPUTER, unit 1 , evolution of computer, hw

CBSE, class 6 , IT COMPUTER, unit 1 , evolution of computer, hw Q:1 Fill in the blanks. a. The first generation of computers  VACCUME   TUBEs  used. b.  5 th    generation is based on parallel processing and AI (Artificial Intelligence) technology. c. An Abacus has two sections named  heaven  and  earth . d.  Pascal’s calculator  was the first ever mechanical calculating machine or calculator with numerical wheels. e.  Analytical engine  was the first machine to have a set of programming instructions.   2. Name the following. a. A technology that makes computers think like human beings. àArtificial Intelligence technology b. The designer of difference engine. à Charles Babbage c. A type of computer used for weather forecasting. à  Supercomputer d. A component of the analytical engine. à Store and Mill   3. Answer the following questions.   a. List any three advantages of computers. Speed: Computers can process complex operations within seconds. Reliability: They are very reliable; they

CBSE,class 6 , IT computer, unit 1, evolution of computer

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CBSE, class 6, IT computer, unit 1, evolution of computer   Q. 1     Choose the correct option. a.                The Electronic Numerical Integrator and Computer (ENIAC) is an example of                            computers.   i.      Second generation ii. Third generation iii.       First generation iv. Fourth generation   b.                Identify the limitation of a computer from the following.                                    i.            A computer can perform calculations at a high speed. ii.            A computer is a multipurpose machine. iii.            A computer is a reliable machine. iv.           A computer can store huge amounts of data but only the human brain can use and implement it.   c.                 An Abacus has two sections named Earth and                       .                                    i. Mill ii. Numerical wheels iii. Store iv. Heaven   d.              Which device is an example of mainframe computers?                                           

CBSE, Class 6, IT- computer ,Unit/Ch -2, introduction to open office calc

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CBSE, Class 6, IT- computer ,Unit/Ch -2, Introduction to open office calc Notes   Spreadsheet Application A spreadsheet application is in the form of a grid or a table that organises data into rows and columns. It is used to organise, manipulate and perform calculations on numerical data. The following can be done in a spreadsheet application. ·       enter text and numeric data ·       edit data ·       format data ·       perform calculations on data ·       present data in a graph   Components of OpenOffice 4 Calc 1.       Menu bar  :  File, Save 2.       Standard toolbar :  Options  New, Open, Print, Copy, Paste   and so on 3.       Formatting toolbar :  S elect a font, font color, alignments, number formats, border options and background colors. 4.       Formula toolbar :  contains the Name Box and the Input Line   textbox. 5.       Workbook and Worksheet:  When you start OpenOffice Calc, the file that opens is called a  workbook . By default, the name of the first workbook is  Un

CBSE,Class 6, IT- computer ,Unit/Ch -3, 3d printing with TinkerCad

CBSE- Class 6, IT- computer ,Unit/Ch -3, 3d printing with TinkerCad 3D Printing Using TinkerCad Extra questions Choose the correct option. 1.      The ruler tool is present in ________ section on the right-hand side of the TinkerCad window. a.       the helpers b.      the tools c.       the workplane d.      none of above 2.      _____ tool allows us to view different dimensions of objects and distances between them. a.      Grid view b.      Basic shapes c.        Ruler d.      Workspace 3.      __________ has a positive and negative side similar to the X axis. a.      Grid view b.      Basic shape c.        Ruler d.      Workspace  4.      To change to smaller or larger movements ______ tool is provided by Tinkercad. a.       Snap Grid b.      Basic shape c.       Ruler d.      Workspace 5.      The Snap Grid is placed at the _______ of the design area. a.       bottom right corner b.       bottom left corner c.        top left corner d.       top right corner 6.       The default m