In this blog you will get information(notes , question answer) about your computer book (IT-402) for 2020 board exams. Some links of videos: 1) Web application - https://www.youtube.com/watch?v=vJgjv38Ufiw 2) Word processing - https://www.youtube.com/watch?v=Z6bpHzJ9IeE&t=278s 3) Spreadsheets - https://www.youtube.com/watch?v=R4jDUD7Al7Q&t=2s 4) Email messaging - https://www.youtube.com/watch?v=sQX8fM7d8uk Some important terms: Softcopy A soft copy is an electronic copy of some type of data, such as a file viewed on a computer's display (Monitor) or transmitted as an e-mail attachment. It is an intangible output. Hardcopy A hard copy is a printed copy of information from a computer. Sometimes referred to as a printout, a hard copy is so-called because it exists as a physical object i.e. it is tangible Output . Sticky Notes is a desktop notes application included in Windows...