Chapter 1: Information Representation and Multimedia
Description:
In this chapter, students will learn how computers represent and process different types of data. The chapter begins with number systems, including binary, decimal, hexadecimal, and octal, and explains how to convert between them. It also covers binary arithmetic, memory measurement units, Binary-Coded Decimal (BCD), ASCII, and Unicode character encoding systems. Furthermore, students will explore multimedia concepts such as bitmap and vector graphics, sound and video representation, sampling, resolution, colour depth, and file compression techniques including lossy and lossless compression. This chapter provides the foundation for understanding how computers store, process, and communicate information in digital form.
Notes:
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Practice Material:
How to Use the Practice Material
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Read all the questions carefully and write your answers in your notebook.
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Make sure you justify each mark by giving one valid point or explanation for every mark awarded.
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Once you have completed the questions, compare your answers with the answer sheet provided at the end.
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Try to understand any mistakes you make and learn from them before attempting the questions again.
