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PC Hardware Fundamentals
This chapter covers the physical building blocks of a personal computer: the processor, memory, storage, power, and the connectors that tie them together. A support technician must recognize each component, know how it installs, and understand the specifications that determine compatibility and performance.
Networking Essentials
Networking connects computers so they can share data and access the internet. This chapter introduces the common ports and protocols, TCP/IP addressing, wireless standards, and the devices that move traffic through a network.
Laptops and Mobile Devices
Portable devices pack computing into compact, battery-powered designs with unique components and service considerations. This chapter covers laptop hardware, mobile connectivity, power and battery safety, and enterprise management of mobile devices.
Virtualization and Cloud Computing
Virtualization and cloud services let organizations run workloads flexibly and efficiently. This chapter explains hypervisors, containers, the main cloud service and deployment models, and the resource planning behind them.
Hardware and Network Troubleshooting
Troubleshooting is the core skill of IT support. This chapter presents the standard methodology and applies it to common hardware, power, display, storage, and network problems, along with the tools used to diagnose them.
Practice by topic
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