Category:Message systems: Difference between revisions
From ETHW
No edit summary |
No edit summary |
||
| Line 3: | Line 3: | ||
== Subcategories == | == Subcategories == | ||
*'''[[:Category:Postal services|Postal services]]''' | *'''[[:Category:Postal services|Postal services]]''' - the services used to transmit physical objects and tangible letters across space | ||
*'''[[:Category:Voice mail|Voice mail]]''' | *'''[[:Category:Voice mail|Voice mail]]''' - a computer based system that allows users to exchange voice messages | ||
[[Category:Communications|{{PAGENAME}}]] | [[Category:Communications|{{PAGENAME}}]] | ||
Revision as of 19:17, 19 September 2011
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
