The International Organization for Standardization (ISO) is a non-government worldwide association that sets industrial and commercial standards. ISO was found in 1947, and its head office is in Geneva, Switzerland. It is the largest standards development organization in the world today. ISO was formed as a result of the union of two organizations: the ISA …
A USB WiFi antenna is a device that provides a computer with access to the Internet when in range of a WiFi access point. It also refers to a USB-based wireless adapter that also provides a computer with Internet access but connects to specific wireless routers rather than public WiFi access points. USB WiFi antennas …
Internet Authentication Service (IAS) Overview In most organizations that have multiple network access servers, the centralization of authentication and accounting of connections being established at a centralized server is the better approach than each network access server performing authentication and accounting services. The Remote Authentication Dial-In User Service (RADIUS) protocol is the recognized protocol for …
Embedded systems refer to devices, instruments or large engineering structures/systems that are built to handle one or a few pre-established tasks. The computer controlling the whole thing is built into or 'embedded' within the device. Cellphones and personal digital assistants (PDAs) are examples of devices with embedded systems. They both perform a specific number of …
An Overview of DHCP In TCP/IP based networks, a unique IP address must be assigned to each computer. An IP address is a unique numeric identifier that identifies computers on the network. The Dynamic Host Configuration Protocol (DHCP) is a service that can be implemented to automatically assign unique IP addresses to DHCP clients. DHCP …
As many people are fed up with their cell phone providers, a new trend has opened up for tracphones. A tracphone, or TracFone, is a prepaid phone that gives you the accessibility of a contract plan without the commitment. Tracphones have become much more popular in the past few months as more people are finally …
The System Idle Process on computers running the Microsoft Windows Operating System (OS) typically displays when it is using more than 90% of the computer’s CPU. This confuses many users as they believe that there is an OS error or more drastically that the computer is infected with malware. In reality, the System Idle Process …
A Ham radio antenna tower is usually a metal tower that hams use to support their antennas. There's also an interesting story behind birth of the terms Ham or amateur radio. The actual signification of the term 'ham' was lost but there are several theories that explain its provenience. For example some say it was …
UMTS is an abbreviation for Universal Mobile Telecommunications System. It is one of the third-generation (3g) cell phone technologies quickly developing today. UTMS is also referred to as the 3GSM so as to emphasize the coalition between 3G technology and GSM standard. In theory, the UTMS, using W-CDMA, is supposed to be able to transfer …
S band is a frequency range from approximately 2 to 4 GHz. S band is used for Digital Audio Radio Satellite (DARS) satellite radio systems such as Sirius XM Satellite Radio. Sirius XM uses frequencies between 2,320.00 and 2,332.50 MHz, and also between 2,332.50 and 2,345.00 MHz. S band is also used by many weather, …