"umb." YourDictionary, n.d. Web. 21 June 2019. <https://www.yourdictionary.com/UMB>.
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umb - Computer Definition
(1) (Ultra Mobile Broadband) A high-speed 3G technology that was planned for next-generation CDMA2000 cellular systems. Based on OFDMA and IP, its major proponent was Qualcomm, which in late 2008 abandoned development in favor of Long Term Evolution (see LTE).