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Why Are Text Messages Limited to 160 Characters?



If you've ever wondered why (or cursed the fact that) text messages are limited to 160 characters, this story, courtesy of the LA Times, may just put your mind at ease (or at least provide a target for your rage).

In 1985, German communications researcher Friedhelm Hillebrand realized that, after using a typewriter to type out random sentences, each message almost always came in under 160 characters. Hillebrand and his colleagues had been developing what would become known as text messaging, and, before the typewriter epiphany, the 160-character limit had been a point of debate.

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In 1986, Hillebrand was working as the chairman of the non-voice services committee within the Global System for Mobile Communications (GSM). While there, he pushed for all cellular carriers and cell phones to support the short messaging system (SMS). Since bandwidth was one of the major stumbling blocks in front of SMS, Hillebrand suggested using a secondary radio channel that was already present on mobile networks. At first, only 128 characters could fit in this space, but, after some reorganization and trimming down of possible characters, Hillebrand's team was able to make the 160-character text message a reality. Whether or not that reality is one that can satisfy a text-crazy world is another topic altogether.

As for the technology's adoption, Hillebrand told the Los Angeles Times, "Nobody had foreseen how fast and quickly the young people would use this." [From: LA Times]

Teen Texting Craziness

Tags: history, sms, texting, top

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