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Audiometry (from Latin audīre 'to hear ', and metria 'to measure ') is a branch of audiology and the science of measuring hearing acuity for variations in sound intensity and pitch and for tonal purity, involving thresholds and differing frequencies. [1] .
This is a global list of largest technology companies by revenue, according to the Fortune Global 500. It shows companies identified by Fortune as being in the technology sector, ranked by total annual revenue. Other metrics not shown here, in particular market capitalization, are often used alternatively to define the size of a company.
An astronomical interferometer or telescope array is a set of separate telescopes, mirror segments, or radio telescope antennas that work together as a single telescope to provide higher resolution images of astronomical objects such as stars, nebulas and galaxies by means of interferometry.
International Business Machines Corporation (using the trademark IBM ), nicknamed Big Blue, [6] is an American multinational technology company headquartered in Armonk, New York and present in over 175 countries.
McKinsey & Company (informally McKinsey or McK) is an American multinational strategy and management consulting firm that offers professional services to corporations, governments, and other organizations. Founded in 1926 by James O. McKinsey, McKinsey is the oldest and largest of the "MBB" management consultancies (MBB).
Deloitte Touche Tohmatsu Limited ( / dəˈlɔɪtˈtuːʃtoʊˈmɑːtsuː / ), commonly referred to as Deloitte, is a British multinational professional services network. Deloitte is the largest professional services network by revenue and number of employees in the world and is considered one of the Big Four accounting firms, along with EY, KPMG, and PwC.
Baidu, Inc. ( / ˈbaɪduː / BY-doo; Chinese: 百度; pinyin: Bǎidù; lit. 'hundred degrees') is a Chinese multinational technology company specializing in Internet-related services, headquartered in Beijing 's Haidian District. [3] .
