A subnetwork, or subnet, is a logical, visible subdivision of an IP network. The practice of dividing a network into two or more networks is called subnetting. Computers that belong to a subnet are addressed with a common, identical, most-significant bit-group in their IP address.
Introduction. Vasco da Gama was born in 1460 to a wealthy Portuguese family in Sines, Portugal. Vascoâs father was also an explorer and was supposed to make the epic journey from Portugal to India that would eventually make his son famous.
At the end of the 15th century the Portuguese started to explore the west coast of Africa. They set up trading posts and collected gold and silver. They were convinced that by sailing around the coast of Africa they would find a route to India.In 1487, the Portuguese explorer Bartholomeu Dias sailed around the southern part of the continent and got as far as the east coast of Africa, but a storm made him turn back.hey were convinced that by sailing around the coast of Africa they would find a route to India. In 1487, the Portuguese explorer Bartholomeu Dias sailed around the southern part of the continent and got as far as the east coast of Africa, but a storm made him turn back.