Dave. A MOSFET is known as a voltage controlled device because a voltage applied to the gate controls the flow of current between the source and drain. For a BJT the principal is the same. It is a current controlled device because the base current controls the current flow fromRead More →
The first 8-inch floppy disk had a storage capacity of about 80 kilobytes. By 1986, IBM introduced the 3-1/2 inch floppy disk with 1.44 megabytes of storage space. This may seem like very little now, but at the time it was hard to imagine needing more space than that. WhyRead More →
The CPU is also known as the processor or microprocessor. The CPU is responsible for executing a sequence of stored instructions called a program . This program will take inputs from an input device, process the input in some way and output the results to an output device . IsRead More →
How to Detect Listening Devices on Cell Phones Turn off your phone and let the battery cool. Check the temperature of the battery once every hour or so. If the battery stays warm when it should be cool, there’s a good chance it’s been tapped. Listen for any abnormal clickingRead More →
A mainline backwater valve can help prevent sewage in an overloaded main sewer line from backing up into your basement. Placed directly into the sewer lateral in your basement , the valve automatically closes if sewage backs up from the main sewer. How do you know if your house hasRead More →