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Word Processing Word Processors are used to write documents such as articles, letter, resume, report, poem and also making posters. They can help to:-  Correct any spelling mistakes Edit the document Print the document Change the appearance of different portions of the document Insert header & footer, page numbers, pictures or images in the document Present information in a tabular form and many more. Some of the most popular Word Processing software are:- Open Office Writer MS- Word Notepad Google documents Steps to Open MS Word  1.     Click on Start. 2.     Click on All Programs 3.     Click on Microsoft Office 4.     Click on Microsoft Word. Steps to Save a Document in MS Word 1.     Click on Office Button / File Menu 2.     Click on Save 3.     A Dialog Box appears 4.     Type the name of the file and set the location 5.     Click on Save. Steps to Open an Existing Document 1.     Click on Office Button / File Menu 2.     Click

  1. MODEM: It stands for Modulator- Demodulator. A   modem is a peripheral device which modulates ( convert   digital signals to analog signals) and demodulates( convert   analog signals into digital signals) at the local workstation.   The sending and receiving ends of the communication must   have a modem. Now a days mobile phones have inbuilt   modem devices that help to browse internet.      2. Switch: A network switch is a small hardware device that is used to amplify data signals & create smaller network segment or several subnets of bigger network. It is used to prevent overloading of data in the traffic of a network. It is also responsible for forwarding and transforming data packets between the sub networks.    3. HUB:   A hub is a hardware device which provides common connection point to connect several devices together in a network. It contains multiple ports on which workstations, servers, peripherals can be connected.      ·    Hub can be either active or pas