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  2. Iridium satellite constellation - Wikipedia

    en.wikipedia.org/wiki/Iridium_satellite...

    The Iridium system was designed to be accessed by small handheld phones, the size of a cell phone. While "the weight of a typical cell phone in the early 1990s was 10.5 ounces" [6] (300 grams) Advertising Age wrote in mid 1999 that "when its phone debuted, weighing 1 pound (453 grams) and costing $3,000, it was viewed as both unwieldly and expensive."

  3. Iridium Communications - Wikipedia

    en.wikipedia.org/wiki/Iridium_Communications

    Iridium Communications Inc. (formerly Iridium Satellite LLC) is a publicly traded American company headquartered in McLean, Virginia, United States. Iridium operates the Iridium satellite constellation , a system of 80 satellites: 66 are active satellites and the remaining fourteen function as in-orbit spares. [ 2 ]

  4. Satellite radio - Wikipedia

    en.wikipedia.org/wiki/Satellite_radio

    Satellite radio is defined by the International Telecommunication Union (ITU)'s ITU Radio Regulations (RR) as a broadcasting-satellite service. [1] The satellite's signals are broadcast nationwide, across a much wider geographical area than terrestrial radio stations, and the service is primarily intended for the occupants of motor vehicles.

  5. 2009 satellite collision - Wikipedia

    en.wikipedia.org/wiki/2009_satellite_collision

    Flashes created by the tumbling main body of the Iridium 33 wreckage The collision resulted in significant debris in low Earth orbit. (2011) (2011) NASA , the U.S. space agency, initially estimated ten days after the collision that the satellite space incident had created at least 1,000 pieces of debris larger than 10 cm (4 in), in addition to ...

  6. exec (system call) - Wikipedia

    en.wikipedia.org/wiki/Exec_(system_call)

    The exec calls named ending with an e alter the environment for the new process image by passing a list of environment settings through the envp argument. This argument is an array of character pointers; each element (except for the final element) points to a null-terminated string defining an environment variable .

  7. Automatic Dependent Surveillance–Broadcast - Wikipedia

    en.wikipedia.org/wiki/Automatic_Dependent...

    Conceptual of the ADS-B system, illustrating radio links between aircraft, ground station and satellite. Automatic Dependent Surveillance–Broadcast (ADS-B) is an aviation surveillance technology and form of electronic conspicuity in which an aircraft determines its position via satellite navigation or other sensors and periodically broadcasts its position and other related data, enabling it ...

  8. SIM card - Wikipedia

    en.wikipedia.org/wiki/SIM_card

    A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).

  9. Backup Exec - Wikipedia

    en.wikipedia.org/wiki/Backup_Exec

    Standalone Backup Exec configuration (Two-Tier) A single Backup Exec server is assigned the standalone Backup Exec server role. Each server runs the Backup Exec software and the services that control backup and restore operations of multiple clients. Each Backup Exec server maintains its own Backup Exec database, media catalogs, and device ...

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