What Is a VPN and How Does It Work?
A VPN, or virtual private network, creates an encrypted tunnel between your device and a remote server so your internet traffic is hidden from…
Section · Carmannews
Tech
Consumer technology, phones, home networking, streaming, AI assistants, and the gear that actually ships.
What Is Refresh Rate? Screen Hz Explained
What is refresh rate? Learn what Hz means on a display, how 60Hz, 120Hz, and 144Hz compare, and when a higher refresh rate is…
What Is an Operating System? A Simple Guide
What is an operating system? A plain-English guide to how an OS manages your device, what it does, common examples, and the role of…
What Is a Firewall? Network Security Basics
What is a firewall? A plain-English guide to how firewalls protect your network, the main types, hardware vs software, and whether you need one…
What Is a GPU? Graphics Processing Explained
What is a GPU? A plain-English guide to the graphics processing unit, how it differs from a CPU, why it powers games and AI,…
What Is RAM? Computer Memory Explained Simply
What is RAM? A plain-English guide to computer memory, how RAM differs from storage, why it is called volatile, and how much RAM you…
What Is 5G? Speeds, Bands, and How It Works
What is 5G? A plain-English guide to fifth-generation mobile networks, how fast they are, the low, mid, and high bands, and how 5G differs…
Tech
Phone batteries in 2026: who delivers 5-year longevity
Battery health after three years matters more than launch-day spec. Look at popular phones in their fourth year of use and the real picture…
Tech
The home WiFi setup that fixes 90% of buffering
Most "slow WiFi" is router placement and channel congestion, not ISP throughput. carmannews walks through the four-step diagnostic that fixes the bulk of complaints…
Tech
Streaming consolidation: who survives, merges, or dies
The streaming bundle math is shifting fast. Which services are profitable, which are bleeding, and which look unlikely to exist by 2027.