Basics of computer systems, types of computers, internal & external hardware components (CPU, RAM, motherboard, storage devices, SMPS), peripheral devices, ports & connectors, understanding PC architecture.

Motherboard layouts, chipset functions, BIOS/UEFI firmware, CPU generations & socket types, RAM types (DDR3/4/5), cache memory, clock speed, thermal management, compatibility and upgrade rules.

HDD vs SSD, NVMe drives, external storage, formatting & partitioning, file systems (NTFS, FAT32, ext4), RAID concepts, disk cloning, backup strategies, troubleshooting storage issues.

Step-by-step PC assembly, installing CPU, applying thermal paste, RAM installation, storage mounting, cable management, POST (Power-On Self Test), diagnosing assembly issues, safety procedures.

Installing Windows and Linux OS, creating bootable drives, BIOS settings, disk partitioning, driver installation, system configuration, dual-boot setup, OS optimization techniques.

Common hardware failures, overheating issues, beep codes, boot problems, diagnostic tools, repairing RAM/CPU/PSU issues, cleaning and servicing PCs, using troubleshooting flowcharts.

Introduction to networking, LAN, WAN, MAN, IP addressing (IPv4/IPv6), subnetting basics, routers, switches, hubs, access points, cable types (UTP, STP, fiber), connectors (RJ45), crimping practice.

Setting up wired & wireless networks, router configuration, DHCP, DNS, NAT, port forwarding, Wi-Fi security, network sharing, network printer setup, VPN basics.

Ping, tracert, ipconfig, nslookup, Wireshark basics, checking connectivity issues, packet loss diagnosis, common network errors and solutions, firewall troubleshooting.

Securing home and office networks, antivirus setup, firewalls, malware prevention, safe browsing practices, password policies, basic encryption concepts.

Understanding servers, domain controllers, file/print servers, virtualization basics using VirtualBox/VMware, virtual machines setup, cloud introduction.

Ticketing systems, documenting issues, customer interaction skills, SLA management, remote support tools (TeamViewer/AnyDesk), professional troubleshooting workflows.

Assembling a full PC, setting up a wired/wireless network, configuring routers and switches, installing and securing OS, basic server setup, generating project reports.