INTERNET & E-MAILS Certainly, the Internet and email are two of the most impactful and widely used technologies in today's interconnected world. Let's explore these concepts in more detail: Internet: The Internet is a global network of interconnected computers and servers that allows information, data, and resources to be shared and accessed worldwide. It has transformed the way we communicate, learn, conduct business, and access information. Here are key aspects of the Internet: 1. World Wide Web (WWW): The WWW is a collection of interconnected websites and web pages that provide information, services, and multimedia content. It's accessed using web browsers like Chrome, Firefox, and Safari. 2. Web Addresses (URLs): Uniform Resource Locators (URLs) are web addresses that uniquely identify resources on the Internet, such as websites, pages, and files. 3. Browsers: Web browsers are software applicatio...
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NUMBER SYSTEM Certainly, the concept of number systems is fundamental to mathematics and computer science. Number systems are different ways of representing and expressing numerical values. Let's explore some of the key number systems: 1. Decimal Number System (Base-10): The decimal number system is the most commonly used system in everyday life. It uses ten digits (0 to 9) to represent numbers. Each position in a decimal number has a place value based on powers of ten. For example, the number 256 in decimal means 2 * 10^2 + 5 * 10^1 + 6 * 10^0. EXPLAINATION: You've got it right! The decimal number system, also known as base-10, is the system that we use most frequently in our daily lives for counting, arithmetic, and expressing numerical values. It's based on ten digits, 0 to 9, and each digit's position in a number represents a specific power of ten. In the example you provided, the number 256 in decimal is broken down as follows: 2 * 10^2 (2 multiplied by 10 raise...
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Computer Fundamentals 50 MCQs: 1. What does "CPU" stand for? a) Central Processing Unit b) Computer Processing Unit c) Central Program Unit d) Central Peripheral Unit 2. Which component stores data in a computer for immediate use? a) RAM b) Hard Drive c) CPU d) GPU 3. What is the smallest unit of digital information? a) Byte b) Bit c) Kilobyte d) Megabyte 4. Which type of software provides the user interface to interact with the computer? a) System software b) Application software c) Utility software d) Firmware 5. The binary number system uses which two digits? a) 0 and 1 b) 1 and 2 c) 0 and 9 d) 1 and 10 6. What type of memory is non-volatile and retains data even when the computer is powered off? a) RAM b) Cache memory c) ROM d) Virtual memory 7. Which device converts digital signals from a computer into analog signals for transmission over telephone lines? a) Modem b) Router c) Hub d) Switch 8. What does "GUI" stand for? a) General Unifying Interface ...