I needed to interface PC to some RS-485 test circuits, so I decided to try this cheap USB to RS485 Adapter – Black + Green adapter for that. I selected this specifically because of the cheap price (it is considerably cheaper than anything else I have seen for the same purpose). There should not be →
For something as ubiquitous as the internet today, it certainly isn’t easy to find where it all started. You might know History of Internet quite well in technical details, but what about the locations? Gizmodo article This Is The Room Where The Internet Was Born shows where the first ARPANET node was installed, where communications →
WhatsApp was the Bomb That Shook Silicon Valley this week. When Facebook paid $1bn for Instagram, people thought Mark Zuckerberg was off his rocker in spring 2012. The WhatsApp deal is no different, other than for its order of magnitude. Facebook has agreed to pay $19bn for the instant messaging platform, partly for access to →
Home routers and firewalls are supposed to make users easy and safely connect many devices to their Internet connection. Those devices were advertised to make your Internet safer. In many cases they helped, but more and more often they itself be a real security problem. Strange but saddly true. Home Routers Pose Biggest Consumer Cyberthreat →
The international backbone of Internet is largely based on a network submarine fiber optic cables. There are lots of them. TeleGeography’s free interactive Submarine Cable Map is based on Global Bandwidth research, and depicts active and planned submarine cable systems and their landing stations. Selecting a cable on the map projection provides access to the cable’s →
Just a few days ago I →
It is expected that Internet of Things use is expanding quickly. But what about their security? I strongly encourage to read article The Internet of Things Is Wildly Insecure — And Often Unpatchable by well known security expert Bruce Schneier. It says that we’re at a crisis point now with regard to the security of →
Mobile infrastructure must catch up with user needs and demands. Ubiquitous mobile computing is all around us. Some time in the next six months, the number of smartphones on earth will pass the number of PCs. As the power and capability of many mobile devices increases, the increased demand on networks. We watch more videos, →
Mobile infrastructure must catch up with user needs and demands. Ubiquitous mobile computing is all around us, not only when we use smartphones to connect with friends and family across states and countries, but also when we use ticketing systems on buses and trains, purchase food from mobile vendors, watch videos, and listen to music →
Just because new computers no longer include the venerable serial port doesn’t mean it’s dead. The Serial Port: It Just Keeps Going article tells (and I can agree to that that) in fact, the serial port is still thriving in many test instruments, industrial controls and medical devices. You’ll find RS-232, RS-422, and RS-485 serial →