Radio paging, tele messages and Prestel

By |2022-09-15T12:42:54+02:00July 16th, 2015|Notes, O Level Commerce Notes, Ordinary Level Notes|

A radio pager. Image credit MediaWiki

A radio pager. Image credit MediaWiki ZIMSEC O Level Commerce Notes: Communication: Radio paging, tele messages and Prestel

Radio paging

  • Is a one way communication system.
  • Is an internal means of communication.
  • I used by people in an organisation only.
  • Is hired from the post office.
  • A public address system […]

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