What are the different Networking devices.

What are the different Networking devices.

Networking devices includes:

NIC (Network Interface Card) -an expansion card attached to a computer motherboard the connects network medium to the computer bus.

Hub -a device that connects all segments of a network together.

Router – a device that connects dissimilar network segments into one and selects path data travels through each network segment.

Switch – Similar to a hub but does not rebroadcast message to all computers in network but between the sender and receiver.

The OSI model is made up of seven layers; each layer with some associated protocols. The OSI model is only a logical model and provides guidelines of how network should be implemented. The layers are;

• Application Layer-Defines a set of tools that application use to perform a task<responsible for how network services interact.
• Presentation layer-responsible for all data operation ,that is data  formatting and data compression.
• Session layer-responsible for creating  a connection between two computer called sessions, where they are synchronized performs security authentication.
• Transport layer –ensures error free transmission of data ,  structures  messages and checks their validity.
• Network layer-responsible for Logical addressing/IP addressing and routing ensuring data arrives at the correct location.
• Data Link layer-Responsible for MAC addressing and Logical Link control i. e. (defines logical network topologies).
• Physical layer-Responsible for specification of Physical Topologies and translation of data into signals that can be transmitted over a transmission medium e. g. copper or fiber.

What are the different Networking devices.

Modems -meaning  MODULATION  DEMODULATION, is a network device that changes data from  a digital form into analog form and from an analog form into digital for transmission over an appropriate communication medium.

Gateways, a  combination  of hardware and software that connects dissimilar network environments.

MAU (Multi station Access Unit) – Has similar functionality to that of  a hub but used in the Token Ring Network type.  It creates data paths that form  the ring in a token network.

Router – Combines the functionality of a router and that of a bridge, found on the Network layer although it’s not used nowadays.

What are the different Networking devices.

Here is the solution.

On the client computer running Serial/IP.

•   You add virtual COM ports using the Serial/IP Control Panel and configure them to use your serial server.
•   Your application uses Serial/IP virtual COM ports instead of local physical COM ports.
•   Your application opens, reads and writes virtual COM ports using the standard COM port API.
•   The Serial/IP Redirector automatically makes TCP/IP connections to the serial server and relays the virtual COM port data stream and control actions.

At the remote location

•   The serial server accepts connections from Serial/IP, then converts and relays the data stream and control signals to the server's serial ports.
•   Wireless modems can be used instead of serial servers.
•   The field equipment gets the data stream through serial cables or direct here.