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Cbse, IT, Computer, class 8, Ch - 6, Internet Applications and Emerging Technologies              Answer the following questions. a.                           a. What is a blog ? Mention its uses.                                                                     A blog is a short form of weblog. A weblog is a discussion or informative site of an individual’s ideas, activities, opinions and advice. Each article in a blog is called a post. In simple words, a blog is a publicly shared forum of a diary or journal where the topics can range from personal to politics. Usually, the entries of these posts are displayed in reverse chronological order, such that, the most recent post is displayed first, followed by earlier posts. A blog can include text, images, audio/video and, hyperlinks. It also allows comments from visitors or readers. b.         Why it is important to be careful about what you post on social media sites? Whatever activity you perform online, that is, liking a post, commen

CBSE, CLASS 7,IT, COMPUTER, UNIT 2, FUNCTIONS AND CHARTS IN CALC  Notes Mathematical Functions: ·          ROUND()  : This function rounds a number to the specified number of digits Syntax: =ROUND(number; count) Example :     = Round(35.45;0) Answer : 35 = Round(39.95;0) Answer : 40   ·          LCM(): This function finds the least common multiple of given numbers. Syntax: =LCM(Integer1;Interger 2;.......) Example :     = LCM(10,5,15) Answer : 30 = LCM(2,6,8) Answer : 24     ·          GCD()  : This function finds the greatest common divisor of given numbers. Syntax: =GCD(Integer1;Interger 2;.......) Example :     = GCD(10,5,15) Answer : 5 = GCD(2,6,8) Answer : 2   Text Functions ·          UPPER ()  : This function converts text to uppercase letters. Syntax: =UPPER (text) Example :     = UPPER(“podar”) Answer : PODAR = UPPER(“function”) Answer : FUNCTION   ·          LOWER():  This function converts text to lowercase letters. Syntax: =LOWER(text) Example : = LOWER(“PODAR”) Answer : po