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A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation. In physical security and information security, access control ( AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of accessing may mean consuming, entering, or ...
Broadcasting. Broadcasting is the distribution of audio or video content to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum ( radio waves ), in a one-to-many model. [1] Broadcasting began with AM radio, which came into popular use around 1920 with the spread of vacuum tube ...
Rogue access point. A rogue access point is a wireless access point that has been installed on a secure network without explicit authorization from a local network administrator, [1] whether added by a well-meaning employee or by a malicious attacker.
Memory-mapped I/O ( MMIO) and port-mapped I/O ( PMIO) are two complementary methods of performing input/output (I/O) between the central processing unit (CPU) and peripheral devices in a computer (often mediating access via chipset ). An alternative approach is using dedicated I/O processors, commonly known as channels on mainframe computers ...
Small cell. Small cells are low-powered cellular radio access nodes that operate in spectrum that have a range of 10 meters to a few kilometers. They are base stations with low power consumption and cheap cost. They can provide high data rates by being deployed densely to achieve high spatial spectrum efficiency. [1]
Access Point (Antarctica) Coordinates: 64°50′S 63°47′W. Access Point is a rocky point immediately southeast of Biscoe Point and 2 miles (3 km) northwest of Cape Lancaster on the south side of Anvers Island, in the Palmer Archipelago. First charted by the French Antarctic Expedition under Jean-Baptiste Charcot, 1903–05. Surveyed in 1955 ...
Frequency-division multiple access ( FDMA) is a channel access method used in some multiple-access protocols. FDMA allows multiple users to send data through a single communication channel, such as a coaxial cable or microwave beam, by dividing the bandwidth of the channel into separate non-overlapping frequency sub-channels and allocating each ...
Cambium Networks Corporation is a wireless infrastructure provider that offers fixed wireless and Wi-Fi to broadband service providers and enterprises to provide Internet access. An American telecommunications infrastructure company, it provides wireless technology, including Enterprise WiFi, switching solutions, Internet of Things, and fixed ...