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Physical Computing with Coding & AI _Class-7

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1. Which number system is used by computers for processing data?
Decimal Binary Hexadecimal Octal
2. What is the base value of the hexadecimal number system?
2 8 10 16
3. Which of the following is not a valid octal number?
107 321 542 879
4. What is the value of hexadecimal 'F' in decimal?
14 15 16 10
5. Which encoding scheme supports characters from multiple languages worldwide?
ASCII ISCII Unicode UTF-8
6. The binary number system uses 2 symbols: 0 and 1.
True False
7. Octal numbers are always longer than binary numbers.
True False
8. The ASCII code can represent up to 256 characters.
True False
9. In hexadecimal, the letter 'A' is equal to 11 in decimal.
True False
10. ISCII encoding supports only English characters.
True False