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Router

Router The router is a physical or virtual internetworking device that is designed to receive, analyze, and forward data packets between computer networks. A router examines a destination IP address of a given data packet, and it uses the headers and forwarding tables to decide the best way to transfer the packets. There are some popular companies that develop routers; such are Cisco Juniper , D-Link , Nortel , etc. Some important points of routers are given below: A router is used in LAN (Local Area Network) and WAN (Wide Area Network) environments. It shares information with other routers in networking. It uses the routing protocol to transfer the data across a network. Furthermore, it is more expensive than other networking devices like switches and hubs. A router works on the third layer of the OSI model, and it is based on the IP address of a computer. It uses protocols such as ICMP to communicate between two or more networks. It is also known as an intelligent de

Charles Babbage (1791-1871)

Charles Babbage (1791-1871) He was born in Walworth, Surrey, on December 26, 1791. He was one of four children born to the banker Benjamin Babbage and Elizabeth Teape. He attended Trinity, Cambridge, in 1810 to study mathematics, graduated without honors from Peterhouse in 1814 and received an MA in 1817. In 1814 he married Georgiana Whitmore with whom he had eight children, only three of whom lived to adulthood. The couple made their home in London off Portland Place in 1815. His wife, father, and two of his children died in 1827. In 1828 Babbage moved to 1 Dorset Street, Marylebone, which remained his home till his death in 1871. He was elected a fellow of the Royal Society in 1816 and occupied the Lucasian chair of mathematics at Cambridge University from 1828 to 1839. He died on October 18, 1871 and was buried at Kensal Green cemetery in London. Charles Babbage, who was born in 1791, is regarded as the father of computing because of his research into machines that could calcula

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