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Label of a UMTS router with MAC addresses for LAN and WLAN modules. A MAC address (short for medium access control address or media access control address) is a unique identifier assigned to a network interface controller (NIC) for use as a network address in communications within a network segment.
The control unit (CU) is a component of a computer's central processing unit (CPU) that directs the operation of the processor. A CU typically uses a binary decoder to convert coded instructions into timing and control signals that direct the operation of the other units (memory, arithmetic logic unit and input and output devices, etc.).
In IEEE 802 LAN/MAN standards, the medium access control (MAC), also called media access control, is the layer that controls the hardware responsible for interaction with the wired (electrical or optical) or wireless transmission medium. The MAC sublayer and the logical link control (LLC) sublayer together make up the data link layer.
A media access control protocol data unit (MAC PDU or MPDU) is a message that is exchanged between media access control (MAC) entities in a communication system based on the layered OSI model. [ 3 ] In systems where the MPDU may be larger than the MAC service data unit (MSDU), the MPDU may include multiple MSDUs as a result of packet aggregation .
The software that runs the router is composed of two functional processing units that operate simultaneously, called planes: [8] Control plane : A router maintains a routing table that lists which route should be used to forward a data packet, and through which physical interface connection.
Intel FWIXP422BB. A network processor is an integrated circuit which has a feature set specifically targeted at the networking application domain.. Network processors are typically software programmable devices and would have generic characteristics similar to general purpose central processing units that are commonly used in many different types of equipment and products.
In computer hardware, a controller may refer to: Memory controller, a unit that manages access to memory; Game controller, a device by which the user controls the operation of the computer; Host controller; Sound controller; Network controller; Graphics controller or video display controller; SCSI host bus adapter; Parallel port controller ...
The hardware unit that performs the operation is known as a multiplier–accumulator (MAC unit); the operation itself is also often called a MAC or a MAD operation. The MAC operation modifies an accumulator a : a ← a + ( b × c ) {\displaystyle a\gets a+(b\times c)}