Page 6 - CA 165 ver 1.0 Class 9
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INSIDE THE SERIES
                                              INSIDE THE SERIES



                  The key features of the series have been designed to ensure better learning, assessment and evaluation.


                   Learning Resources



                   Wi-Fi is used to establish network in offices or within the small campus of an organization. It establishes
                   a good network connectivity generally for locations within a distance of 100 mts. It reduces the usage of
                      WiMAX stands for Worldwide Interoperability for Microwave Access. It is a type of telecommunication
                   spaces & cables. facility that enables wireless transmission of data. It is specially used in places where
                      internet  connectivity  is  poor.  A  Local  base  station  is  created  at  such  places  where
                      Notes
                       WiMAX device is installed so that it catches signal, amplifies it and passes on to a local
                       network. Its range of operation is within 50 Km radius from base station.
                     It  is  a  networking  media  in  which  computing  devices  are  connected  via  short-range  wireless  signals   Notes
                     through infrared adapters. Infrared connections are commonly used in remote controls to operate TV, AC,
                     Infrared
                     etc. that can connect by signal transmission in a short range distance.
                     Cloud computing refers to the usage of IT applications that are available on Cyber network but stored in   This section contains additional   Do you know?
                     a remote server. Rather than keeping files on a hard drive or local storage device, cloud-based storage
                      makes it possible to save program or data on a remote storage media and can be accessed anywhere
                      CLOUD COMPUTING
                                                      information to enrich the subject.
                      It  makes  it  easier  for  organisations  to  use  the  same  software  at  different  locations  or  branches  as
                      the application package can be used by numerous users thereby saving cost of multiple numbers of
                      using internet connections.
                      Computers connected to cloud computing technology are known as Cloud Computers.  Cloud services
                      enable the users to use applications or remote servers. Thus it saves cost of purchasing additional software
                       licence. It also reduces data duplication of redundancy & removes data inconsistency or contradictions.
                                                                                             Hard Disk is also known as Winchester Disk.
                      installations.                                                       l from the flat surface of the optical disc.
                                                                                           Optical Disc
                       Cloud Computing is also very helpful in transferring the large files, eg: E-mails have the limitation of
                       sending files upto 25MB size only but larger files can be sent through cloud storage options such as
                        Public Cloud: It is available through Internet to anyone who is willing to pay for the services of
                                                                                           Optical disc is commonly used as an external storage device in which the laser beam helps to read data
                         Private Cloud: It is generally an application that is developed & run by a particular organisation for
                                                                                            CD: CD or Compact Disc is a common optical disc. It is made up of light weight
                         its own use at different branches or location. Some examples of cloud computing are Google drive,
                                                                                            plastic material with a chemical coating on one side where the data is stored.
                       l  Google Drive. Some of the types of clouds are:                     as well. The capacity of 120 mm standard CD is 700 MB.
                         application.
                                                                                            It is inserted into a CD/DVD drive or CD/DVD writer of a CPU. CD ROM (Compact
                                                                                            Disc Read Only Memory) reads the data whereas in CD writer, data can be  written
                       l                                                                      l  DVD: DVD or Digital Versatile/Video Disc is an optical disc which looks like a CD
                        Protocol refers to a set of common notions, norms or rules that coordinate or govern the functioning   l   to a DVD, one has to use a DVD writer).
                         One drive, IDrive, etc.
                        PROTOCOLS
                        between two or more sets of computers or networks.
                                                                                                but has a capacity to store data up to 17.1 GB. DVD is the merging of video and
                                                                                               audio in a common format. To read information stored in a DVD, it has to be
                                        Basics of Information Technology  43                a Blue violet laser is used.
                                                                                               inserted into a DVD ROM or DVD Writer or DVD player (to copy information on
                                                                                          by the Blu-ray Disc Association (BDA).
                                                                                          Blu-ray Disc: Blu-ray disc can store data upto 128 GB. It has been developed
                                                                                          Do you know?
                                                                                          It is more advanced than CDs or DVDs. To read or write data on a Blu-ray disc,
                                                                                          data upto 1.5 GB.
                                                                                          player.
                                                           Do  you Know?                Flash Memory
                                                                                          v     Diameter of a CD, DVD or Blu-ray disc is 120 mm. DVD can also be of 80 mm diameter that can hold
                                                                                         v   CDs can be used or played in a DVD-ROM or a DVD player but DVD cannot be operated in a CD
                                                                                         v  A combo drive is a device which contains all the features of a CD-Writer and a DVD ROM.
                                                           This section contains a     l  transfer data to computer.
                                                           fact about the topic.        USB (Universal Serial Bus) port.
                                                                                        Flash Memory is a small sized external storage device that is commonly used in digital cameras, mobile
                                                                                       phones, MP3 players, etc. It can be plugged through USB or Fire wire port of a computer to fetch or
                                                                                        Pen/Flash Drive:  It is small in size, handy  and  is a  detachable  device  from
                                                                                        which data can be read, copied or transferred from one system to another. It is
                                                                                        re-writable  and weighs less  than  25 g. Nowadays,  pen drives are the most
                                                                                        commonly used external  storage  and  data  transferring  devices.  It  has  an
                                                                                        attachment slot which can be easily inserted or attached into the computer’s
                                                                                                     Basics of Information Technology
                                                                                                              27
                                         Subject Enrichment
                              Glossary
                    1.  Animation: It is the display of sequence of images in order to create extraordinary illusions.  Glossary
                    2.   Antivirus: It is utility software that helps the computer to be free from virus and it notifies when any
                    3.   Application Software: Application Software refers to programs which are designed to accomplish
                     program gets infected and contaminate other files.
                     4.   Autofill: It is a feature in spreadsheet package in which a certain kind of predefined series of data   This  section  contains
                      particular type of tasks to meet a user’s specific needs.
                      such as name of months of a year, serial numbers, etc. are automatically generated once the user
                                                    definition of common terms.
                     5.   AutoSpellcheck: It is a facility in ‘Writer’ that enables to automatically check each word as it is typed   Complete the following activities and tick on the circle.  Subject Enrichment
                      feeds the initial data.
                      6.   Callout: It is a text box, to which a line or arrow is connected for the purpose of pointing to a part of
                       and displays a red wavy line under the misspelt words.
                                                                                                    Lab Assignment ‘n Activity
                       the document, so that additional information, related to that specific part can be presented.
                      7.  Cell: It is a rectangular box formed by the intersection of a row and a column.   ª  Make all the contents of the cell as ‘Bold’ and set the size of the text as ‘18’.  Designation
                                                                                            headings:
                      8.   Charts: It is a visual graphical representation of data from a worksheet which is very useful for instant
                                                                                            ª  Open ‘Calc’ on the computer and make Sheet2 as an active sheet.
                                                                                             DOJ
                                                                                            ª   Rename the sheet as ‘Attendance’ and prepare a list of employee with the following
                       9.   Communication Channel: It is the media through which data is transferred, (i.e., air, wires, waves,
                                                                                                   Name of the Employee
                       analysis of data and decision making.
                        satellite connections, etc.) from sender to receiver and vice versa.
                       10.   Communication: Communication refers to transfer of ideas or information from one place to another
                                                                                           ª  Enter details of at-least 10 employees and set the font size as ‘Arial’.
                                                                                             DOJ
                                                                                           ª  Insert a column after designation and give the name as ‘Salary’.
                       11.   Confidentiality: It refers to keep the data or information secret and allowing only authorized people   ª  Enter the salary of each employee.   Designation  Salary
                                                                                                 Name of the Employee
                        between different individuals.
                                                                                          ª  Set the type face of ‘Salary’ as Bold and Italic.
                        12.  Editing: It refers to the process of making changes in the existing text.   ª  Copy the content to the newly inserted worksheet.
                        13.   Format Paintbrush: It is a tool which is used to apply the same type of formatting which is on a
                        to access the information.
                                                                                          ª  Insert a column before DOJ and name it as S.No.
                        14.   Formatting: It refers to the process of changing the appearance of text or document to make it more   ª  Insert a new worksheet and name it as ‘Attendance’.
                                                                                          ª  Insert a new worksheet after the worksheet ‘Attendance’.
                                                                                          ª  Fill the serial number starting from ‘1’ in the ‘S.No.’ column using AutoFill feature.
                         particular content; to some other content.
                                                                                         ª  Delete the worksheet ‘Attendance’.
                         prominent and attractive as per user’s requirement.
                                                                                         ª  Rename the newly inserted worksheet and name it as ‘Employee’.
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                                              Glossary
                                                                                             Recap Zone
                                                                                        
                                                                                         Worksheet is the working area or page on the screen.
                                                                                           A workbook is like a book and the worksheet is like a page of a book.
                                                                                           different cells of the worksheet.
                                                   Recap Zone                               hide/unhide the sheets.
                                                                                         Data can be classified into numeric, alpha-numeric or text, date/time and formula.
                                                                                         Commands or data have to be entered with the help of input devices like mouse and keyboard in
                                                                                         If a workbook is saved for the first time, it must be assigned with a new file name.
                                                   This section contains summary            recent actions.
                                                                                        navigation feature.
                                                                                         Workbook opens with three sheets by default. But the user can add, delete, rename, move and
                                                   of the chapter.                        ‘Calc’ also provides a feature to create a custom list where some series of names or text that can
                                                                                        We can move in OpenOffice from a cell to another cell or from one sheet to the other using the
                                                                                        Editing  could  be  modifying,  deleting,  copying,  moving,  inserting,  cancelling  or  repeating  the
                                                                                        Formatting a cell includes changing the contents of cell with respect to appearance.
                                                                                        be predefined and then it can be displayed when the initial data is entered and AutoFill is applied.
                                                                                                       Working with Spreadsheet
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