NetworksTelecommunications
How the Internet Stack Really Works
You press Enter on a web address and a page appears a fraction of a second later. In between, your request was…
Posts by Johan Cobo
Electronics
Resistance and Ohm’s Law: Controlling the Flow
Resistance (R, measured in ohms) is a material's opposition to current: as charge carriers collide with the atomic lattice, they shed energy…
Electronics
What Electricity Actually Is: Charge, Current, and Voltage
Electricity is charge in motion. Charge (coulombs) is carried by free electrons; current (I = Q/t, amperes) is how fast charge passes…
AIArchitectureComputer Vision
CCTV in 2026: From Dumb Cameras to Intelligent Sensors
Before any AI can be clever, the camera has to capture something worth analyzing. This opener to the Intelligent Video Analytics series…