IT Fundamentals

Explore core fundamentals of IT.

Hardware CPU, RAM, motherboards, storage, power supply, ports, and assembly best practices.

Software Types of software, compiled vs interpreted languages, versioning, automation, and Git.

Operating Systems Kernel, processes, memory management, file systems, shells, and the boot process.

Troubleshooting Structured methodology for diagnosing issues, root cause analysis, and documentation.

System Administration IT infrastructure, servers, cloud, provisioning, change management, and vendor lifecycle.

Backups & Recovery Backup types, tools, disaster recovery planning, post-mortems, and the 3-2-1 rule.

Networking TCP/IP model, Ethernet, IP addressing, subnetting, CIDR, DNS, DHCP, NAT, VPNs, and troubleshooting.

Security Core IT security concepts including threats, cryptography, authentication, and defense strategies.