Hardware and Operating Systems Course

Lesson 1 • Memory and Storage Fundamentals

Distinguishes volatile RAM from persistent storage media. Connects memory capacity and speed to overall system performance.

Lesson 2 • The Central Processing Unit

Examines the CPU as the primary computation engine. Explains clock speed, cores, and instruction cycles in accessible terms.

Lesson 3 • Input and Output Devices

Covers peripheral devices that allow user interaction and data output. Links I/O devices to the broader hardware ecosystem.

Lesson 4 • Motherboards and System Buses

Describes the motherboard as the central interconnect for all components. Explains bus architecture and how data travels between parts.

Lesson 1 • Internal Cabling and Airflow

Teaches proper cable routing and chassis airflow principles. Good cable management directly improves thermal performance and system reliability.

Lesson 2 • Step-by-Step System Assembly

Guides students through a structured hardware build process. Reinforces component identification and safe handling practices from earlier sections.

Lesson 3 • External Connectivity Standards

Reviews wired and wireless connectivity options available on modern systems. Connects peripheral and network interfaces to real-world use cases.

Lesson 4 • Power Supply Units Explained

Covers PSU wattage ratings, efficiency standards, and connector types. Explains how power delivery affects component stability and longevity.

Lesson 1 • Navigating the OS Interface

Covers graphical and command-line interfaces as complementary interaction modes. Builds practical navigation skills used in every subsequent chapter.

Lesson 2 • OS Installation and Setup

Walks through partitioning, formatting, and OS installation workflows. Connects hardware knowledge to the software setup process.

Lesson 3 • User Accounts and Permissions

Explains account types, privilege levels, and access control fundamentals. Establishes security awareness that carries through advanced OS topics.

Lesson 4 • Major Operating System Families

Surveys Windows, Linux, macOS, and mobile OS families by design philosophy. Helps students select appropriate OS types for given professional contexts.

Lesson 1 • Storage Redundancy and RAID

Introduces RAID levels as a strategy for performance and fault tolerance. Connects storage reliability concepts to enterprise hardware configurations.

Lesson 2 • File and Directory Operations

Teaches creating, moving, copying, and deleting files via GUI and CLI. Reinforces command-line skills introduced in the previous chapter.

Lesson 3 • Backup Strategies and Recovery

Covers full, incremental, and differential backup methods and scheduling. Establishes data protection habits essential for professional environments.

Lesson 4 • File System Concepts and Types

Explains inodes, allocation tables, and journaling as core file system mechanisms. Compares common file systems by performance and compatibility.

Lesson 1 • Processes and Threads

Defines processes and threads as the OS units of execution. Explains how multithreading improves application responsiveness and throughput.

Lesson 2 • CPU Scheduling Algorithms

Surveys round-robin, priority, and shortest-job-first scheduling strategies. Connects scheduling choices to system responsiveness and fairness.

Lesson 3 • Monitoring and Optimising Performance

Introduces system monitoring tools to observe CPU and memory utilisation. Applies scheduling and memory concepts to real-world performance tuning.

Lesson 4 • Virtual Memory and Paging

Covers page faults, swap space, and demand paging as virtual memory mechanisms. Explains how virtual memory extends usable RAM beyond physical limits.

Lesson 1 • Configuring Network Interfaces

Teaches IP, gateway, and DNS configuration via GUI and CLI tools. Directly applies OS navigation skills to real network setup tasks.

Lesson 2 • IP Addressing and Subnetting

Covers IPv4 and IPv6 addressing, subnet masks, and CIDR notation. Enables students to design and interpret basic network address schemes.

Lesson 3 • Core Network Protocols

Surveys DNS, DHCP, HTTP, FTP, and SSH as essential application-layer protocols. Connects protocol knowledge to everyday OS-level network operations.

Lesson 4 • Networking Concepts and Models

Introduces the OSI and TCP/IP models as frameworks for understanding network communication. Provides the conceptual map for all networking topics that follow.

Lesson 1 • Physical Security of Hardware

Covers physical access controls, device locking, and secure disposal of hardware. Connects physical security gaps to OS-level compromise risks.

Lesson 2 • Patch Management and Updates

Explains vulnerability patching cycles, update channels, and rollback strategies. Establishes a proactive maintenance habit critical to OS security.

Lesson 3 • OS Hardening Techniques

Teaches disabling unnecessary services, removing default accounts, and applying security baselines. Reduces the OS attack surface using built-in configuration options.

Lesson 4 • Encryption and Data Protection

Introduces full-disk encryption, file-level encryption, and key management basics. Connects encryption tools to the data protection strategies covered earlier.

Lesson 1 • System Health and Capacity Planning

Applies monitoring tools to track trends in CPU, memory, disk, and network usage. Prepares students to anticipate resource needs before performance degrades.

Lesson 2 • User and Group Administration

Covers creating, modifying, and removing user accounts and groups at scale. Builds on the permissions foundation established in the OS introduction chapter.

Lesson 3 • Scheduling and Automating Tasks

Teaches task schedulers and cron jobs for automating maintenance operations. Reduces manual effort and ensures consistent system upkeep.

Lesson 4 • Log Management and Analysis

Explains system, application, and security log types and their locations. Enables students to diagnose issues and detect anomalies through log review.