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Pager. A pager, also known as a beeper or bleeper, [1] is a wireless telecommunications device that receives and displays alphanumeric or voice messages. One-way pagers can only receive messages, while response pagers and two-way pagers can also acknowledge, reply to, and originate messages using an internal transmitter. [2]
Al Gross (engineer) Irving " Al " Gross ( / ɡroʊs /; February 22, 1918 – December 21, 2000) was a pioneer in mobile wireless communication. He created and patented many communications devices, specifically in relation to an early version of the walkie-talkie, [1] Citizens' Band radio, [2] the telephone pager [2] and the cordless telephone. [3]
Page (computer memory) A page, memory page, or virtual page is a fixed-length contiguous block of virtual memory, described by a single entry in a page table. It is the smallest unit of data for memory management in an operating system that uses virtual memory. Similarly, a page frame is the smallest fixed-length contiguous block of physical ...
Thirdly, symbols used in the writing system usually correspond to elements of spoken language. [3] [ page needed ] In general, systems of symbolic communication like information signs , painting , maps , and mathematics are distinguished from writing systems, which require knowledge of an associated spoken language in order to read a text.
The man page for the sed utility, as seen in various Linux distributions. A man page (short for manual page) is a form of software documentation usually found on a Unix or Unix-like operating system. Topics covered include computer programs (including library and system calls ), formal standards and conventions, and even abstract concepts.
In October 1972, he joined Digital Equipment Corporation where he first worked as a contractor porting TENEX to the KI10 model of the PDP-10 family. On January 2, 1973, he joined DEC as an employee, heading the team responsible for the development of the TOPS-20 operating system, an evolution of TENEX for the newer models of the PDP-10 family.
The system has remained the same, only minor adjustments have been made to it since its creation. Spoken books. The spoken book was originally created in the 1930s to provide the blind and visually impaired with a medium to enjoy books. In 1932 the American Foundation for the Blind created the first recordings of spoken books on vinyl records.
At that time pagers had a limited range and were used mostly in on-site situations for example to call medical personnel in a hospital. By 1990, wide-area paging had been invented and over 22 million pagers were in use. Their number exploded and by 1994, there were over 61 million pagers in use. Motorola’s Pageboy II Pageboy II
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