telegram wikipedia

As late as 1844, after the electrical telegraph had come into use, the Admiralty's optical telegraph was still used, although it was accepted that poor weather ruled it out on many days of the year. [84], According to Telegram, secret chats have supported perfect forward secrecy since December 2014. The message was carried along wires, and the text written or printed and delivered by hand or teleprinter.

[51], In 1843, Scottish inventor Alexander Bain invented a device that could be considered the first facsimile machine. After a number of arrests of The Base members in January 2020, a note appeared on its official Telegram account warning people to stop posting. The system was extensively used in France, and European countries controlled by France, during the Napoleonic era. Some form of heliograph was used by the mujahideen in the Soviet–Afghan War (1979-1989). "[43] Durov did not specify what prompted this flood of new sign-ups, but the period matched a prolonged technical outage experienced by Facebook and its family of apps, including Instagram. By 200 BC complex flag signalling had developed, and by the Han dynasty (200 BC–220 AD) signallers had a choice of lights, flags, or gunshots to send signals. Telegram pointed out that it considered implementing a feature that would announce such a status change within the relevant group. Between 1886 and 1888, Heinrich Rudolf Hertz published the results of his experiments where he was able to transmit electromagnetic waves (radio waves) through the air, proving James Clerk Maxwell's 1873 theory of electromagnetic radiation. Telegram was blocked by the government on May 1, 2018. Russian tech news site calculated the first round as offering 2.25 billion tokens at $0.38 each, with a minimum purchase of $20 million, and the second as offering 640 million tokens at $1.33 each, with a minimum purchase of $1 million. [127][139] MTProto 2.0 is seen by qualified cryptographers as a vast improvement to Telegram's security. [24][25] Nikolai Durov created the MTProto protocol that is the basis for the messenger, while Pavel provided financial support and infrastructure through his Digital Fortress fund with partner Axel Neff joining as a second co-founder. Few details have been recorded of European/Mediterranean signalling systems and the possible messages. [69] Also, there are inline bots, which can be used from any chat screen.
In February 2016, Telegram announced that it had 100 million monthly active users, with 350,000 new users signing up every day, delivering 15 billion messages daily. [25] On 24 March 2014, Telegram announced that it had reached 35 million monthly users and 15 million daily active users. It was mainly used in areas where the electrical telegraph had not been established and generally uses the same code. Depending on a channel's settings, messages may be signed with the channel's name or with the username of the admin who posted them. [136] The Telegram team responded that the flaw does not affect message security[137] and that "a future patch would address the concern". These systems led to new telegraph codes, starting with the Baudot code.

p. 203. Users can share photos, videos, audio messages and other files (up to 2.0 gigabyte in size per file). [citation needed], Litigation with the SEC and abandonment of the project launch, indistinguishability under chosen-ciphertext attack, anti-government demonstrations across Iran, Ministry of Communication and Informatics, National Broadcasting and Telecommunications Commission, U.S. District Court for the Southern District of New York, "Live Locations, Media Player and Languages", "telegram.org Competitive Analysis, Marketing Mix and Traffic - Alexa", "Video Calls and Seven Years of Telegram", "Russia's Zuckerberg launches Telegram, a new instant messenger service", "400 Million Users, 20,000 Stickers, Quizzes 2.0 and €400K for Creators of Educational Tests", "Why you should stop reading Gizmodo right now", "Once Celebrated in Russia, the Programmer Pavel Durov Chooses Exile", Telegram, A Secure Messaging App From The Founders Of VK, Russia’s Largest Social Network https://www.guideurhealth.com/telegram-se-paise-kese-kamaye/title=Meet Telegram, A Secure Messaging App From The Founders Of VK, Russia’s Largest Social Network, Why Telegram has become the hottest messaging app in the world, "The secret American origins of Telegram, the encrypted messaging app favored by the Islamic State", "Surveillance drives South Koreans to encrypted messaging apps", "What isn't Telegram saying about its connections to the Kremlin? [58][59][60] Pavel Durov has said that Telegram users in "troubled countries" should enable two-factor authentication by creating passwords, which Telegram allows, but does not require.[58][59]. [99], Polls are a feature of Telegram that are currently available on Android, iOS and the desktop applications. [21]:16, 37 France had an extensive optical telegraph dating from Napoleonic times and was even slower to take up electrical systems. Telegram has more than 20,000 stickers. It used rotary-telephone-style pulse dialling for automatic routing through the network. Telegram or Telegramme may also refer to: Disambiguation page providing links to topics that could be referred to by the same search term, https://en.wikipedia.org/w/index.php?title=Telegram_(disambiguation)&oldid=959401986, Disambiguation pages with short descriptions, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, "Telegram", a 1976 song by Nazareth on the album, This page was last edited on 28 May 2020, at 15:58. A feature of the Baudot code, and subsequent telegraph codes, was that, unlike Morse code, every character has a code of the same length making it more machine friendly. Pantelegraph was successfully tested and approved for a telegraph line between Paris and Lyon.[53][54]. From his Fraserburgh base, he transmitted the first long-distance, cross-country wireless signal to Poldhu in Cornwall.[when? [166], In March 2018, Iran's chairman for the Committee for Foreign policy and National Security Alaeddin Boroujerdi announced that Telegram has been targeted to be fully blocked in Iran by 20 April 2018,[167] citing Telegram's role in facilitating the winter protests and the need to promote local apps. The company and the app was started in Russia and moved to Germany. 197-198 in, Christopher H. Sterling (ed). On 11 October 2019, the U.S. Securities and Exchange Commission filed an emergency action and obtained a temporary restraining order against Telegram over an alleged unregistered and ongoing digital token offering in the U.S.[239], On 12 May 2020, Pavel Durov announced the end of Telegram's active involvement with TON. [35], A teleprinter is a telegraph machine that can send messages from a typewriter-like keyboard and print incoming messages in readable text with no need for the operators to be trained in the telegraph code used on the line. Stickers come in collections called "sets", and multiple stickers can be offered for one emoji. Telegram's local message database is not encrypted by default. Earlier optical systems were largely limited to official government and military purposes. This way local engineers or physical intruders cannot get access to users' data". Sticker sets installed from one client become automatically available to all other clients. [33] In December 2014, Telegram announced that it had 50 million active users, generating 1 billion daily messages, and that it had 1 million new users signing up on its service every week,[38] traffic doubled in five months with 2 billion daily messages. [10], An optical telegraph is a telegraph consisting of a line of stations in towers or natural high points which signal to each other by means of shutters or paddles. Telegram has defended the lack of ubiquitous end-to-end encryption by claiming the online-backups that do not use client-side encryption are "the most secure solution currently possible,"[23] despite several other chat services such as Signal, Matrix, and WhatsApp offering end-to-end encryption on all platforms. While the signalling was complex (for instance, different-coloured flags could be used to indicate enemy strength), only predetermined messages could be sent. The African drum system was not alphabetical. Traffic became high enough to spur the development of automated systems—teleprinters and punched tape transmission. A CNN news report stated that Telegram had "become known as a preferred means of communication for the terror group ISIS and was used by the ISIS cell that plotted the Paris terror attacks in November" after the attacks. [143] As of August 2020, Telegram still hasn't published their server-side source code. Permanent or semi-permanent stations were established during the war, some of them towers of enormous height and the system for a while could be described as a communications network. Rather, the drum beats followed the tones of the language.

[140][141], In 2018 Telegram sent a message to all Iranian users stating Telegram Talai and Hotgram unofficial clones are not secure. [211], In July 2017, Director General of Application and Informatics of the Indonesian Ministry of Communication and Informatics, Semuel Abrijani Pangerapan, said eleven Telegram DNS servers were blocked because many channels in the service "promoted radicalism, terrorism, hatred, bomb assembly, civil attack, disturbing images, and other propaganda contrary to Indonesian laws and regulations. [25][63][82] Messages sent within secret chats can, in principle, be deleted at any time and can optionally self-destruct. [37] The Morse telegraph (1837) was originally conceived as a system marking indentations on paper tape. It was demonstrated on the London and Birmingham Railway in July of the same year. [26] Telegram Messenger LLP states that its end goal is not to bring profit,[27][28] but it is not currently structured as a non-profit organization. Only requests regarding public content (bots and sticker packs) will be processed. The electric telegraph was slower to develop in France due to the established optical telegraph system, but an electrical telegraph was put into use with a code compatible with the Chappe optical telegraph. Telegraphy is the long-distance transmission of textual messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Lines of signalling relay stations can send messages to any required distance, but all these systems are limited to one extent or another in the range of messages that they can send. [34] Durov left Russia and is said to be moving from country to country with a small group of computer programmers consisting of 15 core members. [88] Currently offering one-to-one video calls, Telegram has plans to introduce secure group video calls later in 2020. Telegram style, the style of writing adopted for use in telegrams; Telegram messenger, person who delivers a telegram; Singing telegram, any message delivered as a song; International Telegram (disambiguation) This disambiguation page lists articles associated with the title Telegram. Only the pre-ICO rounds were conducted; the public ICO was cancelled. [180], In June 2016, it was found that some ISPs in Bahrain had started to block Telegram. [241], On 26 June 2020, Telegram in an civil settlement with U.S. Securities & Exchange Commission for TON agreed to pay $18.5 million and return $1.2 billion to investors. In the end of March 2017, Telegram introduced its own voice calls.

[75], In December 2019, Bloomberg moved their messenger-based newsletter service from WhatsApp to Telegram after the former banned bulk and automated messaging. According to state-owned People's Daily, Chinese human rights lawyers used Telegram to criticize the Chinese Government and the Communist Party of China. The stickers are cloud-based, high-resolution images intended to provide more expressive emoji. Secret chats are not available for groups or channels. Telegram's optional secret chat function, which provides end-to-end encryption, received a score of 7 out of 7 points on the scorecard. [64]:277, There was a brief resurgence in telegraphy during World War I but the decline continued as the world entered the Great Depression years of the 1930s.

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