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ICQ is an instant messaging computer program that was first developed and popularized by the Israeli company Mirabilis in 1996. The name ICQ stands for "I Seek You".〔 Its ownership was passed to AOL in 1998 and to Mail.Ru Group in 2010 (M). The ICQ client application and service were initially released in November 1996 and the client was freely available to download. Users could register an account and would be assigned a number, like a phone number, for others to be able to contact them (users could also provide handles). ICQ was the first stand-alone instant messenger and the first online instant messenger service as such — while real-time chat was not in itself new to the internet (IRC being the most common platform at the time), the concept of a fully centralized service with individual user accounts focused on one-on-one conversations set the blueprint for later instant messaging services like AIM, and its influence is seen in modern social media applications. At its peak around 2001, ICQ had over 100 million accounts registered.〔(ICQ Surpasses 100 Million Registered Users ), Time Warner Press Release - May 09, 2001 (accessed 2015-05-12).〕 At the time of the Mail.Ru acquisition in 2010, there were around 42 million daily users. Today ICQ has 11 million monthly users. ==Features== *ICQ features include offline user messaging, multi-user chats, free daily-limited SMS sending, resumable file transfers, greeting cards, multiplayer games and a searchable user directory. Users can use emoticons while chatting with other users. *ICQ6 was launched on April 17, 2007, and offered a single communication platform that combines the various user options: instant messaging services, free SMS from ICQ to mobile, voice and video communication. The software's new sound gallery was orchestrated by the Israeli psychedelic trance duo Infected Mushroom. Among the new additional features in ICQ6 are Quick IM, which allows users to send a short message without opening a conversation window, a "follow me" service directly to the user’s mobile, a multi-chat service and support for Zlango, the animated icons language. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ICQ」の詳細全文を読む スポンサード リンク
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