Tech-Explainer

The Hardware Behind Modern Computing: A Practical Overview Computing today rests on a small, powerful set of building blocks. The familiar PC, laptop, or phone all share core parts that work in concert: a processor to do the math, memory to store active work, and storage to keep files when power is off. Behind the scenes, a motherboard ties these parts together and a power supply keeps them running. Understanding these pieces helps you pick machines that fit real tasks, not just marketing claims. ...

Mobile Communication: 5G, LTE, and Beyond Mobile networks shape everyday life, from phones to smart homes and factory sensors. The jump from 3G to LTE gave reliable broadband on the move and opened many apps. Today, 5G promises faster speeds, smaller delay, and the ability to connect many devices at once. LTE stays widespread and dependable, while 5G adds capabilities for cities, businesses, and remote work. LTE performance varies with distance and congestion. Real-world speeds often range from 10 to 100 Mbps down, with lower uploads. Latency is usually 30–50 ms, which works for calls and video, but can feel slow for precise tasks. 5G is designed to push these limits further: higher peak speeds on some bands and big gains in capacity and responsiveness, especially in busy areas. ...