Thought to be an abbreviation of opposite number.
oppo - Computer Definition
(OPPO Electronics Corporation, www.oppo.com, http://global.oppo.com) A China-based manufacturer of Android smartphones, Blu-ray players and A/V equipment. Founded in 2004, OPPO introduced its mobile phone line in 2008 and Blu-ray players in 2010. Achieving acclaim from audiophiles as a high-end, yet affordable, Blu-ray player, the BDP-93 was followed by a line of machines that continued the tradition.