Skip to main content

Posts

Showing posts with the label ComputerNetworking

Network devices: Repeaters, Hub, Switch, Bridge, Routers, Modem, Gateway

Network Devices Network devices are the components that are used to interconnect multiple computing devices to form a network, In order to share files or resources like printers or fax machines and for communications. Types of networking devices Repeaters Hub Switch Bridge Routers Modem Gateway Repeaters What is a repeater? In communication when signals move from one place to another place they become weak and after a particular time, they lost their values and become a straight line. To increase the strength of the signal and get back the original data before the signal loss, repeaters are used. “Repeaters are used to regenerate the signals before the complete loss of signal up to a particular limit.” Regeneration means to recreate the signals before they lost their value. We can't regenerate a signal, which is completely lost. We can't get back the data (we don't know whether it is 0 or 1 because the signal becomes a straight line) If there is some stren...

IPv4 and IPv6

IP (INTERNET PROTOCOL) ADDRESS The IP address is a numeric address. It is a network layer address (Layer 3). It's an identifier for a computer or device on a network. Every device has to have an IP address for communication purposes. The IP address consists of 2 parts: the first part is the network address and the second part is the host address. There are also two types of IP addresses: IPv4 and IPv6. IPv4 IPv4 is the current version of IP addresses. It's a 32-bit numeric address written as four numbers separated by periods. 66.99.324. 13 ⟶ Octet The number range in each octet is 0 – 255. This address version can produce over 4,294,967,296 unique addresses. Computers and networks don't read IP addresses in the standard numeric format. 66 . 94 . 29 . 13 They only understand numbers in a binary format. Binary numbers only use 1's and 0's. So, the computer will convert numeric format to binary format.               66.94.29.13 ...