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quot;How a BlackBerry Works" When the BlackBerry debuted in 1999, carrying one was a hallmark of powerful executives and savvy technophiles. People who purchased one either needed or wanted constant access to e-mail, a calendar and a phone. The BlackBerry's manufacturer, Research in Motion (RIM), reported only 25,000 subscribers in that first year. But since then, its popularity has skyrocketed. In September 2005, RIM reported 3.65 million subscribers, and users describe being addicted to the devices. In this article, we'll examine the "push" technology at the center of the device's popularity, RIM's former dispute with patent holder NTP Incorporated and its current dispute with Visto Corporation. "Push" Technology A PDA does a lot of the same things a BlackBerry does, and the PDA made its debut several years before the BlackBerry. information on a person's computer was to automatically or manually sync the PDA. First, the software senses that a new message has arrived or the data has changed.

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