Page 68 - ComputerScience_Class_11

6. What is the decimal value of character ‘A’ in ASCII?
a. 64 b. 97
c. 66 d. 65

B. Fill in the blanks.
1. Digits have ASCII values in the range ………………….
2. ………………… encoding scheme is designed to represent the character set of Indian languages.
3. UTF stands for ………………….
4. A group of 8 bits is called a ………………….
5. UTF-8 is a type of ………………… encoding.
6. 1 terabyte is equivalent to 1024 ………………….
C. Answer the following questions:
1. Differentiate between UTF-16 and UTF-32 encoding.
2. What is ASCII and mention the ranges of ASCII codes for the following:
a. Uppercase letters
b. Lowercase letters
3. Elaborate on the 6-bit BCD coding system.
4. What is a character set? Explain the terms glyph and code point.
5. Describe how ISCII supports formatting and script changes.
6. Why Unicode is the most popular encoding scheme?
7. What are the limitations of BCD?
8. Explain how multi-digit decimal numbers are converted into BCD form and back into decimal form.
D. Higher Order Thinking Skills (HOTS)
1. Considering the limitations of the BCD system, what improvements would you suggest to make it more efficient for modern
applications? Provide reasoning.
2. If ISCII had not been developed and Unicode had not existed, how would the global adoption of digital technology be impacted,
especially in countries with non-Latin scripts?
E. Case study-based questions.
ISCII (Indian Script Code for Information Interchange) was developed to represent characters from Indian languages like Hindi,
Bengali, Tamil and more. This 8-bit encoding scheme allows computers to process multiple Indian languages using a single standard.
ISCII was important for early computing in India, but its use has diminished with the rise of Unicode, which encompasses not just
Indian languages but all major world languages.
Based on the given case, answer the following questions:
1. Which encoding scheme is specifically designed for Indian languages?
a. Unicode b. ISCII
c. ASCII d. UTF-8
2. What is the main advantage of ISCII?
a. It supports all global languages b. It allows easy transliteration between Indian languages
c. It requires no special hardware d. It supports only Hindi characters
3. Which Indian languages are supported by ISCII?
a. Hindi, Bengali, Tamil, Telugu, Kannada, Malayalam b. Only Hindi and Bengali
c. All South Asian languages d. Only the major regional languages
4. What is the main limitation of ISCII?
a. It supports only one language b. It only supports numeric characters
c. It is not compatible with modern systems d. It cannot encode English text
5. What replaced ISCII in modern computing?
a. UTF-16 b. BCD
c. Unicode d. ASCII

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