How videos are uploaded in youtube's database. It tells how the youtube system of uploading, viewng and downloading works.

1. Name: Anuj Rana
BCA 1st semester
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How YouTube works?

3. 1.Uploading
• Creator creates a new video or old one and
uploads in youtube.
• Once you hit upload, YouTube copies your
video into different file formats.
• Videos are copied with differing level of
video quality.
• 300 hours of video are uploaded to YouTube
every minute.
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4. 2.Video Packets
• Each version of the video is then chopped up into several
different pieces called packets.
• The packets are then encoded as radio waves which are sent
over Wi-Fi or a mobile network.
• 1 billion people regularly use YouTube to watch and upload
videos.
• YouTube was created on February 14, 2005.
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Packet
A segment of data sent
from one computer or
device to another over a
network.

5. 3. Delivered to YouTube
• When the signal reaches a cell tower or router, it is
transmitted via a wired connection to YouTube’s servers.
• YouTube’s servers receive the packets, reassemble them into
a video and store it at Google’s data centers.
• Over 700 YouTube videos are shared on Twitter each minute.
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YouTube headquarter is
located in San Bruno,
California, United States

6. 4. Playing the video
• When someone clicks to play your video, a request is sent
over the internet to YouTubes’s servers.
• YouTube selects the best video format for the browser
being used to view it and chops it to back into packets.
• The packets are sent via wired and wireless connection to
the viewer’s computer.
• One of the largest internet provider in our country put up
Google cache server in Nepal Telecom’s Jawalakhel office
which made YouTube faster in Nepal.
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7. 5.Instant Playback
• The packets are delivered in order to form the original video
at the optimum quality.
• If the internet connection is slow, the video may buffer when
waiting for the next packet to be delivered.
• YouTube is the 3rd most visited website in the world.
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8. Reference Link
 https://www.howitworksdaily.com/how-does-youtube-work/
 https://www.youtube.com/yt/about/brand-resources/#logos-icons-colors
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9. Thank You
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