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WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta. [13] It allows users to send text, voice messages and video messages, [14] make voice and video calls, and share images, documents, user locations, and other content.
A mobile-focused, phone number-based model operates on the concept of primary and secondary devices. Examples of such messaging services include: WhatsApp , Viber , Line , WeChat , Signal , etc. The primary device is a mobile phone and is required to login and send/receive messages.
Former logo (2014-2022) Zoom was founded by Eric Yuan, a former corporate vice president for Cisco Webex. [6] He left Cisco in April 2011 with 40 engineers to start a new company, [2] originally named Saasbee, Inc. [7] The company had trouble finding investors because many people thought the videotelephony market was already saturated. [7]