LCoS (Light Crystal over Silicon) is a technology used in display systems. LCoS shares some elements with LCD and DLP (Digital Light Processing) displays. As such, LCOS systems are not exactly new though it was only recently that commercial manufacture became viable. The best way to understand LCoS television is to understand the process. How LCoS Works The process starts with an intense light beam that's passed through a condenser lens. This lens has the task of focusing and directing the beam. It has a filter which ensures that only Read More

ACD, or Automated Call Distribution, is a telephony system that automatically forwards incoming calls to a specific group of telephones. ACD is most commonly used in corporate environments in which a company has a billing department, customer service department, retail department, and a managerial department or multiple branches. In these cases, an ACD may collect information from the caller through automated questions or detect the caller’s area code in order to forward the call to the correct department or branch.   How ACD Works When a caller first calls a Read More

Backing up your bookmarks is very important. By doing this regularly, you will be able to retrieve your favorite URLs in the event that your personal computer crashes. Backing up your Firefox bookmarks is certainly preferable to having to search for your favorite websites again and building up your bookmark list from scratch. Options for  Backing Up Your Firefox Bookmarks There are several different methods to backup Firefox. We will cover: Backing up Firefox bookmarks to a .json file Manually backup an entire Firefox profile Backing up Firefox using MozBackup Read More

The term microfarad is used to describe a unit of capacitance that is 0.000001 farad. The symbol that represents a microfarad is µF. It is commonly used in utility alternating-current and audio frequency circuits. The capacitors that are found in them normally have a rating of 1 µF or more. However, even smaller capacitors are used in radio frequency systems. In this case, the picofarad (pF) is used instead of the microfarad. Audio frequency circuits use capacitors that are rated from 0.01 µF to 100 µF, and the capacitance in Read More

An LEC, or Local Exchange Carrier, is a telephone company that is responsible for managing calls within a specific territory, such as a city or county. The vast majority of the United States is managed by LECs, which differ from IXCs, or Interexchange Carriers. While LECs manage local calls between two parties, IXCs are responsible for managing long-distance calls between multiple LEC territories, known as LATAs, or Local Access and Transport Areas.   How LEC Works An LEC manages all calls, equipment, and customer queries within its respective LATA, although Read More

Stacks are one of the commonly used data structures. A stack is also known as a last in first out (LIFO) system. It can be considered as a linear list in which insertion and deletion can take place only at one end called the top. This structure operates in much the same way as a stack of trays. This article covers the representation of stacks using arrays. For the representation using self-referential structures, please refer to Stacks using Dynamic Memory Allocation. Here is a stack of trays: The following figures Read More

Securing the Network When planning for and implementing network security, the activities which you should be performing would typically involve the following: Planning how the network infrastructure will be secured from both internal and external threats. Defining and creating internal and external security boundaries. Implementing network security technologies and mechanisms that can assist the organization in meeting its security requirements. Implementing server security technologies and mechanisms. Implementing application security technologies and mechanisms. Implementing user security technologies and mechanisms. Planning and implementing an auditing strategy. Implementing network monitoring. A few methods Read More

The Threaded Neill-Concelman connector, commonly known as the TNC connector, is actually just a threaded version of a standard BNC connector. With an impedance of 50 ohms, these connectors operate between frequency spectrums of 0-11 GHz. A TNC connector has a far better performance than any BNC connector when it comes to receiving microwave frequencies. Named after its creators, Paul Neill from Bell Labs and Carl Concelman of Amphenol, the TNC connector has successfully been put to use in a number of wired and radio applications. Over time, a number Read More

DataSalon DataSalon offers an ingenious data analysis service that is able to adjust between the smallest organizations and the largest companies. DataSalon is used by thousands of groups worldwide to manage subscriptions and memberships, account files, financial information, database information, and other important data files, calculations, and reports. DataSalon is able to present information in a number of methods that make understanding data easy and effortless. DataSalon's main product, MasterVision, allows you to upload your data all at once and search, analyze, and understand it in ways that would've cost Read More

Free To Air (FTA) dishes receive unencrypted television or radio broadcast signals. They can decode standard MPEG-2/DVB-S for digital television. FTA receivers are designed to detect active transponders and their channels without being pre-programmed thereby collecting any available information they can detect. With the use of these receivers, television viewers can receive transmissions without subscription. FTA dishes usually come with a LNBF, which is a LNB (Low-Noise Block) integrated with a feedhorn. The feed horn channels the signals between the transceiver and the reflector, while the LNB converts signals from Read More