This is a list of Internet socket port numbers used by protocols of the transport layer of the Internet Protocol Suite for the establishment of host-to-host connectivity. Originally, port numbers were used by the Network Control Program (NCP) in the ARPANET for which two ports were required for half-duplex transmission. Later, the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) needed only one port for full-duplex, bidirectional traffic.
In newer houses, the average total square meterage of a single bedroom is 10.5 square metres with the standard dimensions being 3.0 metres x 3.5 metres. While in older houses, it can be as small as 7.5 square metres with the dimensions being 2.5 metres x 3 metres.The average for a double bedroom can either be 14 square metres i.e. 4.0 metres x 3.5 metres or 16 square metres i.e. 4.0 x 4.0m.Again, in older houses they are can be smaller by up to 0.5 metres each way making it 10.5 to 12.25 square metres of space.Usually the size of a bedroom includes the wardrobe.If it is a separate walk-in wardrobes then the wardrobe will be 4 square metres i.e. 2.0 metres x 2.0 metres.hile in older houses, it can be as small as 7.5 square metres with the dimensions being 2.5 metres x 3 metres. The average for a double bedroom can either be 14 square metres i.e. 4.0 metres x 3.5 metres or 16 square metres i.e. 4.0 x 4.0m.
In the United States, the average size of new single family homes grew from 1,780 square feet (165 m2) in 1978 to 2,479 square feet (230.3 m2) in 2007, and to 2,662 square feet (247.3 m2) in 2013, despite a decrease in the size of the average family. Reasons for this include increased material wealth and prestige.