Category:Message systems: Difference between revisions
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Includes postal services and voice mail. | |||
[[Image:Message Systems Morse code in British signal exchange Somme 1916.jpg|thumb|right|A 1916 photo of British officials using Morse Code at The Battle of Somme]] | |||
== Subcategories == | |||
*'''[[:Category:Postal services|Postal services]]''' - the services used to transmit physical objects and tangible letters across space | |||
*'''[[:Category:Voice mail|Voice mail]]''' - a computer based system that allows users to exchange voice messages | |||
[[Category:Communications|{{PAGENAME}}]] | |||
Revision as of 22:21, 31 January 2012
Includes postal services and voice mail.
Subcategories
- Postal services - the services used to transmit physical objects and tangible letters across space
- Voice mail - a computer based system that allows users to exchange voice messages
Pages in category "Message systems"
The following 4 pages are in this category, out of 4 total.
Media in category "Message systems"
The following 2 files are in this category, out of 2 total.
Fig05-SiemensKarolusFacsimileSystem1927 0622.jpg 1,731 × 2,170; 584 KB
Message Systems Morse code in British signal exchange Somme 1916.jpg 766 × 599; 74 KB
