Computing Fundamentals: It Networking, Os & Vir... Apr 2026

These three don't work in isolation. A needs an Operating System to function, and it needs a Network to communicate with the outside world. Mastering these fundamentals is the "Level 1" for anyone looking to build, secure, or manage the technology of tomorrow.

For computers to talk, they need rules. The most important is TCP/IP , which breaks data into small "packets," sends them across the web, and reassembles them at the destination. Computing Fundamentals: IT Networking, OS & Vir...

This is the secret sauce—a layer of software that sits between the physical hardware and the virtual machines (VMs), tricking each VM into thinking it has its own dedicated processor and memory. These three don't work in isolation

Every device needs an IP Address so the network knows exactly where to deliver the data. 2. Operating Systems (OS): The Software Architect For computers to talk, they need rules

The OS decides which apps get to use the CPU (the brain) and how much RAM (short-term memory) they receive.