Azimuth is a measurement at an angle used in the spherical coordinate system. To find a point of interest, the observer creates a vector that is then projected in a perpendicular fashion onto a reference plane. The resulting angle between the projected vector and the reference vector located on the reference plane is the azimuth. …
In order to understand what a checksum error is, it is important to first learn what a checksum is. A checksum is a redundancy check during a computer’s start up process, which makes sure that the computer’s data is intact and unhampered. The data is scanned and tested for accuracy, either based on how well …
The JDK (Java Development Kit) most commonly refers to an implementation of the Java SE or Java 2 SE. It can also refer to Java EE or Java ME implementations released by Oracle in the form of binary products targeted to Java developers that work on the Windows, Mac OS X, Linux, or Solaris platforms. …
TTY/TDD stands for a group of telecommunication devices that make it easier for deaf and/or mute people to talk over telephone lines. TTY stands for telephone typewriter, teletypewriter or text phone. TDD stands for Telecommunications Device for the Deaf. Usually these devices are all categorized under TTY/TDD. Sometimes TTY means manual devices such as typewriters, …
The Basic Input Output system (BIOS) is a type of software that provides an interface between the hardware components of a computer and its operating system. It is usually stored in a Read Only Memory (ROM) chip. As it is stored in a ROM chip, its contents can never be erased and can be accessed …
Projectors have quite a variety of uses these days, whether in the boardroom or classroom to give a presentation, or the home to project digital, high definition TV and video to a screen. While there are many aspects that determine whether a projector will project high quality images (e.g. resolution, contrast, etc.), one type of …
The siemens is the standard unit of electrical conductance. It is the inverse of resistance and is equal to one divided by resistance, or current divided by voltage. One siemens is equal to one ampere per volt. History of the Siemens The siemens was defined at an international conference in 1881, and is named after …
Internet Authentication Service (IAS) is Microsoft's implementation of a RADIUS (Remote Authentication Dial-in User Service) server and proxy. As a RADIUS server, IAS performs centralized connection authentication, authorization, and accounting for many types of network access, including wireless and VPN (Virtual Private Network) connections. As a RADIUS proxy, IAS forwards authentication and accounting messages to …
Blu-ray is an optical storage format developed by Sony and Phillips. It was created to store large amounts of high definition video and sound. Blu-ray’s name came from the type of laser it uses to read and write data. The laser is a hue of blue-violet. A blue-violet laser has a shorter wavelength than the …