It has been suggested that this article or section be merged with pager. (Discuss)
There are two related meanings to the word Paging in telecommunications. The first is the general act of broadcasting a message through a network in order to contact a remote radio system. This is used in cellular networks, for example, and is covered in detail in that entry. Wikipedia does not have an article with this exact name. ... It has been suggested that this article or section be merged with Paging (telecommunications). ... A cellular network is a radio network made up of a number of radio cells (or just cells) each served by a fixed transmitter, normally known as a (base station). ...
Paging in the other, more widely known sense means the use of a paging device through a paging service. The paging device is a telecommunications device that alerts the user via a sensory message, such as an audible beep, flashing, vibration, or an updated display. The paging service is a service provided by the teleoperator that can be used to send one-way messages to the subscriber of the paging service.
Compared to the cellular phone and text messaging, paging presents a simpler form of communication that was used with older, analog technology. In a typical scenario, the sender of the message dialed a specific paging number and then continued dialing to form a number-coded message to be encoded and displayed on the subscriber's paging device. Cellular redirects here. ... A received SMS being announced on a Nokia phone. ...
First introduced in the USA in the 1960s, paging networks reached their height of popularity in the 1980s in most places. Although they continue to be used quite widely in the USA, they are considered to be practically obsolete in most of Western Europe and Asia where mobile phones are now the standard. Despite the reduction in popularity, the low radiofrequency used by paging systems leads to good coverage which may be advantageous in certain circumstances. The 1960s decade refers to the years from 1960 to 1969, inclusive. ... Western Europe is distinguished from Eastern Europe by differences of history and culture rather than by geography. ... World map showing Asia. ...
Because we have pages 4096 bytes (4096-1 = 4095 can be represented by 12 bits in binary) in size, the MMU looks at the first 4 bits for the page number, and the next 12 bits for the relative memory address in the page.
If our pages were 2048 bytes in size, the MMU would look at the first 5 bits for the page number, and the next 11 bits for the relative memory address.
When paging is used alongside with virtual memory, the operating system has to keep track of pages in use and pages which will not be used or have not been used for some time.
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