Unit 524: Fundamentals of Information Technology

1. Introduction to Information Technology

• Definition and scope of IT
• Historical evolution of IT
• Importance and applications of IT in society and business
• Key components of IT:
  • Hardware
  • Software
  • Networks
  • The Internet

2. Computer Systems and Architecture

• Overview of computer systems
• Central Processing Unit (CPU): functions and components
• Memory types and hierarchy:
  • Primary memory (RAM, ROM)
  • Secondary storage devices (HDD, SSD, optical drives)
• Input and output devices
• Data processing and storage mechanisms
• Interaction and integration of components

3. Operating Systems

• Definition and purpose of operating systems
• Types of operating systems:
  • Batch
  • Time-sharing
  • Distributed
  • Real-time
  • Mobile OS
• Core functions:
  • Process management
  • Memory management
  • File system management
  • Device management
• User interface types:
  • Command Line Interface (CLI)
  • Graphical User Interface (GUI)

4. Network Fundamentals

• Introduction to computer networks
• Types of networks:
  • LAN, MAN, WAN
  • Wireless networks
• Network topologies:
  • Bus
  • Star
  • Ring
  • Mesh
• Network protocols and models:
  • OSI model
  • TCP/IP
• The Internet and its architecture
• Basics of data communication
• Network security principles

5. Software Development

• Overview of software development
• Programming languages categories:
  • Low-level vs high-level
  • Procedural, object-oriented, scripting
• Algorithms and data structures basics
• Software Development Life Cycle (SDLC):
  • Requirements gathering
  • Design
  • Implementation
  • Testing
  • Maintenance
• Software testing and debugging techniques

6. Database Management

• Introduction to database systems
• Data models:
  • Hierarchical
  • Network
  • Relational
• Relational databases and tables
• Structured Query Language (SQL):
  • Basic queries
  • Data manipulation
• Data normalization concepts
• Ensuring data integrity and security

7. Cybersecurity

• Cybersecurity overview
• Common threats and vulnerabilities:
  • Malware
  • Phishing
  • Denial-of-Service attacks
  • Social engineering
• Best practices for protection:
  • Firewalls
  • Antivirus
  • Regular updates
• Encryption basics
• Security policies and procedures

8. Information Technology Ethics and Legal Issues

• Ethical considerations in IT
• Privacy concerns and data protection
• Intellectual property rights:
  • Copyright
  • Patents
  • Trademarks
• Cyber laws and regulations
• Impact of IT on society
  • Digital divide
  • Social implications