Polar encoding is an encoding design that needs two voltage methods — one is positive, and the second is negative.An average voltage method is decreased using both techniques, and the unipolar encoding scheme’s DC component is removed.In Manchester and differential encoding, each bit includes both +ve and –ve voltage. Therefore, ... Read More

Digital transmission system manages by sending voltage pulses and a medium link, usually a wire or cable. The most encoding one voltage stands for binary '0' and other voltage as binary '1'.The polarity of pulse defines either +ve or – ve unipolar encoding because it works with only one polarity. ... Read More

For data transmission or transmissions, depending on the distance between devices and transmission media, the data must be converted in a form that can be quickly and correctly transmitted. Mostly the information is transmitted in the form of electrical signals. The conversion of data bits into electrical signals cannot be ... Read More

Network devices can relate PCs or other electronic tools to share documents or resources like printers or fax machines. Devices can install a Local Area Network (LAN) are the general type of network devices used by the public. A LAN needed a hub, router, cabling or radio innovation, connection cards, ... Read More

Modem stands for Modulation Demodulation. A modem converts the digital data signals into analogue data signals. They can be installed within the computer in a development slot applicable for it.There are frequently two types of Modems that are as follows −Standard ModemThe standard modems use generic device drivers, and they ... Read More

A device that can bridge several network structure is called a gateway. Thus gateways can link two dissimilar LANs. The major difference between gateways and routers is that routers operate at the OSI model’s network layer. In contrast, gateways operate from the lowest to the topmost layer, i.e., the application ... Read More

Router is a particular type of device used to connect two or more subnets that cannot be similar. These devices support connectedness between two LANs or two WANs over the large geographical range. The routers evaluate the best route from a sender to a receiver. For this, they perform in ... Read More

A repeater is a dynamic network device used to reproduce the signals when they transmit over a greater distance so that the signal’s strength remains equal. It can be used to create an Ethernet network. A repeater that occurs as the first layer of the OSI layer is the physical ... Read More

HubsHub is a network connectivity device that enables relation nodes to interact with each other. It provides a frequent connection point for a tool in a network. So, Hub is a central concentrating point for a computer network. It supports a key data point for network cabling. Only coaxial cable ... Read More

A hub is a standard network point, also referred to as a network hub, to connect devices in a network. The hub has numerous ports. If a packet makes one port, it can be viewed by all the network segments because a packet is duplicated to another port. Hub is ... Read More