Way before you kids had touch screens and mice, we had to walk uphill both ways to tell a computer where we were pointing at on the screen. I speak, of course, of light pens. When these photodiodes in ...

You have designed an op-amp circuit to measure a small voltage. The circuit gain is -10V/V, but it appears that the input impedance to the circuit is effecting the device as it is being measured. How ...

The Linux USB input subsystem is a single, harmonized way to manage all input devices. This is a relatively new approach for Linux, with the system being partly incorporated in kernel version 2.4 and ...

To interact with a computer, you need an intermediary, something that receives data you input and translates it for your computer. This intermediary is an input device. Input devices for communication ...

An input device responds to changes in the environment and produces a suitable electrical signal for processing in an electronic circuit. In all input devices, other forms of energy are transformed ...

What's driving the need for protection devices and the challenges of implementing them. Traditional types of protection devices. Different approaches to protection, including surge stoppers. The ...

Using of basic building blocks in different ways to make complex circuit is a common axiom in Digital Logic design. The complexity of these building blocks can vary from simple structure like ...

While there was lots of great info to come out of our Gamecom 2014 interview with Oculus VR, perhaps the most telling bit was the way the Oculus founder Palmer Luckey answered the question about an ...

These days, if you need to connect two devices via wire, you'll most likely use HDMI. This display protocol supports all sorts of device pairings. It lets you use your iPhone with an external display, ...