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2. Short-range agent communications - Wikipedia

   en.wikipedia.org/wiki/Short-range_agent...

   Short-range agent communications. Short range agent communications (SRAC) are one-way or two-way short-range wireless communications used for intelligence purposes. This communications technology became possible with the arrival of the transistor and small scale integrated circuits. In the late 2000s computer WiFi technology and USB Flash ...

3. Electrical telegraph - Wikipedia

   en.wikipedia.org/wiki/Electrical_telegraph

   Hughes telegraph, an early (1855) teleprinter built by Siemens and Halske. Electrical telegraphy is a point-to-point text messaging system, primarily used from the 1840s until the late 20th century. It was the first electrical telecommunications system and the most widely used of a number of early messaging systems called telegraphs, that were ...

4. Comparison of user features of messaging platforms - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_user...

   SMS. SMS (short message service) is a text messaging service component of most telephone, Internet, and mobile device systems. It uses standardized communication protocols to enable mobile devices to exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines.

5. SMS - Wikipedia

   en.wikipedia.org/wiki/SMS

   An SMS message written on a Motorola Razr V3. Short Message Service, commonly abbreviated as SMS, is a text messaging service component of most telephone, Internet and mobile device systems. It uses standardized communication protocols that let mobile phones exchange short text messages, typically transmitted over cellular networks.

6. Shop Great Walmart Sales, Deals and Specials - AOL.com

   www.aol.com/shopping/stores/walmart

   The best deals to shop during Walmart's weekly sale: Save on Shark, Ninja, TCL and more 15 products to help you stay cool in the extreme heat: 'A lifesaver when faced with blazing heat'

7. Short-range device - Wikipedia

   en.wikipedia.org/wiki/Short-range_device

   A short-range device (SRD), described by ECC Recommendation 70-03, is a radio-frequency transmitter device used in telecommunication that has little capability of causing harmful interference to other radio equipment. Short-range devices are low-power transmitters, typically limited to 25–100 mW effective radiated power (ERP) or less ...