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Questions and Answers > George Mason University - IT 105it105(2

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1. (4 points) Explain the key differences between how digital and analog data is represented. Digital data is represented in binary format (only zeros or ones), whether analog data is represented a ... s electric waves of different amplitudes. 2. (3 points) Define digitization and give an example. Digitizing is a transforming of different types of signals to digital format, to make it possible to store these data in the electronic media 3. (5 points) What is numeric data and how do digital devices represent it? Numeric data is numbers that people use for the airtimecs. Digital devices represent it in binary numbers. 4. (5 points) What is character data and how do digital devices represent it? Character data is our written language that we normally speak. Digital devices convert every character to a binary number and the represent it. 5. (16 points) Describe ASCII, extended ASCII, Unicode and UTF-8. Use the online textbook as your reference. ASCII is a standard of digitizing text information. In extended ASCII there are all characters from all languages. Unicode is a standart of coding characters from all over the world. It is currently the most used standard in the Internet. UTF-8 is a standard that affords to store unicode symbols using less amount of bytes. 6. (4 points) What is plain text and how is it stored? Provide examples of plain text file extensions. Plain text is a text that is not formatted. It is stored in .txt files 7. (2 points) What is a bit? How many bits to a byte? A bit is a binary digit. It can only be a zero or a one. In a byte there are 8 bits Page!1 of!4 https://www.coursehero.com/file/28615120/it1052pdf/ This study resource was shared via CourseHero.com 8. (12 points) How many bits are in the following? Use place holders to show your approach (i.e., 1s place, 2s place, so forth). Use the example in .ppt slides. a. 2Megabits=! b. 5 Kilobits=! c. 3 Gigabits=! 9. (3 points) Give examples of when you would use bits and when you would use bytes. [Show More]

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