Types of Monitors by Ihab Sarsour
A cathode ray tube or CRT , is traditionally used in most computer monitors and the advent of plasma screens, LCD , DLP, OLED displays, and other technologies. As a result of CRT technology, computer monitors continue to be referred to as "The Tube".A CRT works by moving an electron beam back... It uses very small amounts of electric power, and is therefore suitable for use in battery-powered electronic devices. ... In DLP projectors, the image is created by microscopically small mirrors laid out in a matrix on a semiconductor chip, known as a Digital Micromirror Device (DMD).

The Future Arrives As Ultra-Wideband (UWB) Becomes Reality by Stan Allen
As the Consumer Electronics Show is kicking off 2005 in Las Vegas, one of the stars promises to be the emerging technology of Ultra-Wideband (UWB). UWB is wireless networking that is used for a multitude of electronic components and devices ranging from high definition TV, portable digital... The UWB systems consume around 1/10,000th of the power that a cell phone consumes. ... Since the UWB transceivers operate with low power, short burst radio waves, they are very easy and cheap to build compared to the traditional transceivers.

Testing SCR - How To Test And Check Silicon Controlled Rectifier by Jestine Yong
Testing SCR (silicon controlled rectifier) can be done by using an analog multi meter or specialize tester (such as the Peak electronic atlas component analyzer) designed to check semiconductor devices easily. SCR can be found in many electronic circuits. ... If you have the Peak electronic atlas component analyzer tester, what you need to do is to connect the three small clips to each pin of the SCR (any part number will do). ... The tester will begin to analyze the SCR and prompt you with the display such as “Sensitive or low power thyristor” before it tells you the exact pin outs of G,...

Internal Battery Design by Dan Hagopian
The wireless revolution, the prolific use of PDAs, MP3s, MP4s, Laptops, Cell Phones, Smartphones, DVD players, and other portable devices have increased the need for smart and high capacity portable batteries. Portable batteries however are not typical in design. ... Usage and storage patterns are external effect that will also affect battery life and are the responsibility of a user (for example do not leave your device in a hot car with the windows rolled up, or take your device into a sauna).

BlueTooth Technology by Jith Crs
Bluetooth is the name given to a new technology standard using short-range radio links, intended to replace the cable(s) connecting portable and fixed electronic devices. The standard defines a uniform structure for a wide range of devices to communicate with each other. ... This includes setting up of security functions like authentication and encryption by generating, exchanging and checking of link and encryption keys and the control, negotiation of baseband packet sizes and duty cycles of the Bluetooth radio device, and the receiving device on the other end.

History Of The Computer - Redundancy Part 1 Of 2 by Tony Stockill
We have mentioned previously, in history of the computer, that mainframes are large scale devices. We have also mentioned various forms of error correction. We will be looking at that subject in more detail in another episode. (If you are looking for information on what to do when the boss fires... The large scale of systems, as well as being able to provide greater processing power, and throughput, has also made it possible to minimise, or eliminate, the effect of failures. ... Power cables also go to the drives from the controller.

Personal Wireless Networking by Jason Keno
If you've got a wireless network for your computers already, well, you might get a bit excited about what I'm going to say next. How would you feel if your PDA, your mobile phone, your mp3 player and almost everything else you connect to your computer could be wireless too? ... The idea is that, in the future, we'll all have laptop computers with their batteries charged and no more need to connect any wires to them at all -- you just place your Bluetooth device near the computer, and the computer sees it and can use it straightaway.

Internet Connection Fails by Bob Rankin
"I am using XP home with a cable modem connection, and quite often using while online, I get the error of can't find the server. I just lose my internet connection, and it says my TCP/IP needs resetting. How do I do that and what causes the internet dropout?" There are several possible reasons... I addressed the subject of electronic devices that fail at random times, and gave some scientific basis for occasionally turning the device off and then back on. ... Routers have hardware-based firewalls built in, which makes firewall software superfluous for most users.

RFID Software Guide 101 by Mansi Aggarwal
RFID is the abbreviated form of Radio Frequency Identification. RFID is akin to the bar codes but in RFID the electro magnetic coupling is used to transmit signals. The main components of an RFID are silicon chips, an antenna and a transceiver that can be used anytime and anywhere. ... The passive RFID tags require no power source while active ones with power backup. ... Be it medicine, education (like library work), shipping, electronic devices automobiles, musical instruments, tracking movements of individuals via their passports etc., everywhere the RFID technology is at work.

Data Fiber Optics – Light Speed Transmission by Mikael Rieck
Why settle for slow speed, high electricity costs and a technology invented a hundreds years ago if you can have the latest in data transmission at less the cost and many times the speed? With the use of glass or plastic threads to transmit data the fiber optics is an upcoming technology. ... A transmitter is an electronic device that sends an electromagnetic signal with the aid of an antenna, essentially taking information and converting it to a signal for transmission which passes it on to the transmission medium.