Unit 1: Introduction to Computer System – 16 Hrs [BCA Guide Nepal] Introduction of Computer Characteristics of Computer Applications of Computer Classification of Computer Mobile Computing Anatomy of a Digital Computer Content: Computer Architecture Memory & Its Classification Input Devices Output Devices Interfaces #BCA #BCATU #BCAGuideNepal
2.1 Binary, Octal, & Hexadecimal Number Systems and Their Conversions Number Systems Overview A number system defines a way to represent numbers using specific symbols. In digital logic, the most common systems are: Number System Base Symbols Used Example Binary 2 0, 1 101101₂ Octal 8 0-7 67₈ Decimal 10 0-9 345₁₀ Hexadecimal 16 0-9,…
1.1 Digital Signals and Waveforms A digital signal represents data as discrete values, typically 0s and 1s. Unlike analog signals, which vary continuously, digital signals are more reliable and resistant to noise. Key Characteristics of Digital Signals: ✔ Discrete values – Only two levels: High (1) and Low (0).✔ Less noise interference – More reliable…
1. Multimedia Multimedia refers to a combination of different content types, such as text, images, audio, video, and animation, to provide an interactive experience. Key Features of Multimedia: Examples of Multimedia Applications: 2. E-Commerce E-commerce (Electronic Commerce) is the process of buying and selling goods and services over the Internet. Types of E-Commerce: Technologies Used…
Introduction to Internet and Its Applications The Internet is a global system of interconnected networks that use the TCP/IP protocol to share information worldwide. Applications of the Internet Connecting to the Internet Users can connect to the Internet using different technologies: Client/Server Technology The Client-Server model is a computing architecture where clients request services from…