Three applications and its programming languages

 Google was founded in September 1998 by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University in California. Together they own about 14 percent of its shares and control 56 percent of the stockholder voting power through supervoting stock. They incorporated Google as a California privately held company on September 4, 1998, in California. Google was then reincorporated in Delaware on October 22, 2002.An initial public offering (IPO) took place on August 19, 2004, and Google moved to its headquarters in Mountain View, California, nicknamed the Googleplex. In August 2015, Google announced plans to reorganize its various interests as a conglomerate called Alphabet Inc. Google is Alphabet's leading subsidiary and will continue to be the umbrella company for Alphabet's Internet interests. Sundar Pichai was appointed CEO of Google, replacing Larry Page, who became the CEO of Alphabet.

The company's rapid growth since incorporation has triggered a chain of products, acquisitions, and partnerships beyond Google's core search engine (Google Search). It offers services designed for work and productivity (Google Docs, Google Sheets, and Google Slides), email (Gmail), scheduling and time management (Google Calendar), cloud storage (Google Drive), instant messaging and video chat (Duo, Hangouts, Chat, and Meet), language translation (Google Translate), mapping and navigation (Google Maps, Waze, Google Earth, and Street View), podcast hosting (Google Podcasts), video sharing (YouTube), blog publishing (Blogger), note-taking (Google Keep and Google Jamboard), and photo organizing and editing (Google Photos). The company leads the development of the Android mobile operating system, the Google Chrome web browser, and Chrome OS, a lightweight operating system based on the Chrome browser. Google has moved increasingly into hardware; from 2010 to 2015, it partnered with major electronics manufacturers in the production of its Nexus devices, and it released multiple hardware products in October 2016, including the Google Pixel smartphone, Google Home smart speaker, Google Wifi mesh wireless router, and Google Daydream virtual reality headset. Google has also experimented with becoming an Internet carrier (Google Fiber, Google Fi, and Google Station).

Google.com is the most visited website in the world.Several other Google services also figure in the top 100 most visited websites, including YouTube and Blogger. Google was the most valuable brand in the world in 2017 (surpassed by Amazon), but has received significant criticism involving issues such as privacy concerns, tax avoidance, antitrust, censorship, and search neutrality.

 Google Programming Languages:

JavaScript, TypeScript

C, C++, Go,[3]Java, Python, Node

YouTube allows users to upload, view, rate, share, add to playlists, report, comment on videos, and subscribe to other users. It offers a wide variety of user-generated and corporate media videos. Available content includes video clips, TV show clips, music videos, short and documentary films, audio recordings, movie trailers, live streams, and other content such as video blogging, short original videos, and educational videos.

Most content on YouTube is uploaded by individuals, but media corporations including CBS, the BBC, Vevo, and Hulu offer some of their material via YouTube as part of the YouTube partnership program. Unregistered users can watch, but not upload, videos on the site, while registered users are permitted to upload an unlimited number of videos and add comments to videos. Age-restricted videos are available only to registered users affirming themselves to be at least 18 years old.

YouTube and selected creators earn advertising revenue from Google AdSense, a program that targets ads according to site content and audience. The vast majority of its videos are free to view, but there are exceptions, including subscription-based premium channels, film rentals, as well as YouTube Music and YouTube Premium, subscription services respectively offering premium and ad-free music streaming, and ad-free access to all content, including exclusive content commissioned from notable personalities.

As of February 2017, there were more than 400 hours of content uploaded to YouTube each minute, and one billion hours of content being watched on YouTube every day. As of October 2020, YouTube is the second-most popular website in the world, behind Google, according to Alexa Internet. As of May 2019, more than 500 hours of video content are uploaded to YouTube every minute.Based on reported quarterly advertising revenue, YouTube is estimated to have US$15 billion in annual revenues.

YouTube has faced criticism over aspects of its operations, including its handling of copyrighted content contained within uploaded videos,it mets recommendation algorithms perpetuating videos that promote conspiracy theories and falsehoods, hosting videos ostensibly targeting children but containing violent or sexually suggestive content involving popular characters,videos of minors attracting pedophilic activities in their comment sections,and fluctuating policies on the types of content that is eligible to be monetized with advertising.

YouTube programming languages:

Python (core/API),[2] C (through CPython), C++, Java (through Guice platform),[3][4] Go,[5] JavaScript (UI)

TikTok offers a complete framework that makes it simple for people to make a video selfie. And usually, the creators are starting with the younger generation. When the app of TikTok was musically, it was the first network of real social which has reached the audience of the first-grader. Tik Tok is mainly the short time of the video platform usually 15 seconds, and users will be able to upload the videos that show themselves to the public. You may see various cute pets, awesome scenery, different kinds of foods and also some pretty girls on Tik Tok.

Tiktok programming languages:

 1) Java 

 2) Javascript 

3) C# 

4) C ++

 5) PHP