Domains include a set of computers that can be accessed and administered with a ordinary set of rules. For example, a company may need all local computers to be networked within the similar area so that each computer can be seen from other computers within the domain or placed from a main server.

Setting up a domain may also block outside traffic from accessing computers within the network, which adds an extra level of security.

Where PCs running a Windows operating system must be integrated into a domain that includes non-Windows PCs, the free open source package Samba is a suitable alternative. Whichever package is used to control it, the database contains the user accounts and security information for the resources in that domain.

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Martin Cooper (inventor) Inventing handheld cellular mobile phone Making world’s first handheld cellular mobile phone call. Martin “Marty” Cooper (born December 26, 1928) is an American engineer.