An occupancy sensor is a device that is capable of detecting and/or recording the amount of people in a room or area. Occupancy sensors are most often used to determine how many people are in an area that may restrict the total occupancy or in a system that turns lights/other accessories off when no one …
The symbol rate is the rate of state changes on a communications circuit. If a circuit can carry two tones per second, the circuit has a symbol rate of two. Circuits then use different modulation techniques to carry multiple bits per symbol. If the circuit is limited to two different tones, the first tone can …
AA, or Audible Audio files, are audio files which are organized in a format optimized for people listening to spoken text. This article will explain what AA files are, list their pros and cons, and list a few programs that are able to support or convert AA files. What are AA Files AA, or Audible …
QPSK (Quadrature Phase Shift Keying) is a phase modulation algorithm. Phase modulation is a frequency modulation version where the carrier wave’s phase is modulated to encode bits of digital information in each phase change. The “PSK” in QPSK refers to the use of Phased Shift Keying. Phased Shift Keying is a form of phase modulation …
As the price of blank, burnable, DVDs has dropped over the past decade, the demand to learn how to burn a DVD has increased amongst computer users. Single-sided, single layered DVDs can now store 4.7 gigabytes (GB) of data, music, movies, or combination of the media types. If using a double sided, or dual layered …
Xenon is a noble gas–found all the way to the right on the periodic table of elements–that is odorless, colorless and heavy. It has many different uses, but one of the biggest uses that it has is the use in light bulbs. The reason for this is because when xenon is excited, it gives off …
Wireless power induction is already being used today in the form of electric toothbrushes. An electric toothbrush contains coils or loops in the toothbrush handle as well as in the base recharging unit. Because of their constant exposure to water, electric toothbrushes have to use inductive coupling as a means of recharging their batteries. Inductive …
Generic.dx is a rather common trojan virus that infects the computer and weakens its security in order to allow other viruses and malicious software to infect the computer. It enters the computer via an email that the user opens, a website he/she visits, or a third party software that he/she downloads and installs. Generic.dx trojans …
If you have a site, you might want customize your website a little more by adding music. One particularly popular way is to add a music playlist, a streaming device that allows users to upload music from their desktop to their chosen host so that it can be played from their site. A common playlist …
A DASD, or Direct Access Storage Disk, is a type of storage device that is connected directly to a user’s computer rather than being connected to the network. Because many types of storage device connect directly to a user’s computer, the term “DASD” may apply to a variety of different devices; however, a DASD is …