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Questions and Answers
What is the primary function of the Central Processing Unit (CPU)?
What is the primary function of the Central Processing Unit (CPU)?
- Converts Alternating Current (AC) to Direct Current (DC) for components
- Executes instructions and performs calculations (correct)
- Permanent storage for data and programs
- Temporary storage for data and applications
What type of computer is designed for high-performance networking and remote access?
What type of computer is designed for high-performance networking and remote access?
- Laptop
- Mainframe
- Server (correct)
- Desktop
What type of memory is non-volatile, meaning data is retained when power is turned off?
What type of memory is non-volatile, meaning data is retained when power is turned off?
- Cache Memory
- Read-Only Memory (ROM) (correct)
- Storage Drive
- Random Access Memory (RAM)
What is the primary function of the Power Supply in a computer?
What is the primary function of the Power Supply in a computer?
What is the purpose of ASCII in computing?
What is the purpose of ASCII in computing?
What is the purpose of the <p> tag in HTML?
What is the purpose of the <p> tag in HTML?
What type of computer is designed for mobility and convenience?
What type of computer is designed for mobility and convenience?
What is the purpose of Cache Memory in a computer?
What is the purpose of Cache Memory in a computer?
What is the purpose of the <a> tag in HTML?
What is the purpose of the <a> tag in HTML?
What is the primary function of the Storage Drive in a computer?
What is the primary function of the Storage Drive in a computer?
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Study Notes
Hardware Components
- Central Processing Unit (CPU): Executes instructions and performs calculations
- Memory (RAM): Temporary storage for data and applications
- Storage Drive: Permanent storage for data and programs (e.g., Hard Disk Drive, Solid State Drive)
- Input/Output Devices: Keyboard, Mouse, Monitor, Printer, etc.
- Power Supply: Converts Alternating Current (AC) to Direct Current (DC) for components
Types of Computers
- Desktop: Designed for home or office use, often more powerful and upgradable
- Laptop: Portable, designed for mobility and convenience
- Server: High-performance computers for networking, data storage, and remote access
- Mainframe: Large, high-performance computers for enterprise-level applications
- Mobile Devices: Smartphones and tablets, designed for mobility and convenience
Computer Memory
- Random Access Memory (RAM): Temporary storage for data and applications
- Volatile, meaning data is lost when power is turned off
- Measured in bytes (e.g., 8GB, 16GB)
- Read-Only Memory (ROM): Permanent storage for firmware and basic input/output system (BIOS)
- Non-volatile, meaning data is retained when power is turned off
- Cache Memory: Small, high-speed memory for frequently accessed data
ASCII (American Standard Code for Information Interchange)
- Character Encoding: Assigns unique numerical codes to characters, symbols, and control codes
- Character Set: 95 printable characters (letters, digits, punctuation) and 33 non-printable control codes
- ASCII Art: Using characters to create images and designs
Basic HTML (Hypertext Markup Language)
- Markup Language: Uses tags to define structure and content of web pages
- Basic Tags:
<!DOCTYPE html>: Document type declaration<html>: Root element of an HTML document<head>: Contains metadata about the document<body>: Contains content of the HTML document<p>: Paragraph element for text content<a>: Anchor element for hyperlinks
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