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Computer Skills Course: Bits, Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes

admin by admin
June 28, 2020
in Tổng Hợp
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Computer Skills Course: Bits, Bytes, Kilobytes, Megabytes, Gigabytes, Terabytes



Free Computer Skills Course: Digital Storage Terminology.

Learn about Bits, Bytes, Kilobytes (KB), Megabytes (MB), Gigabytes (GB), Terabytes (TB).

Transcript:

Let’s continue learning about how computers store data. As we learned earlier, computers use the Binary number system, which has only two numbers, one and zero.

The word that’s used to describe these binary digits, which can be either one or zero, is Bit – B-I-T = It’s short for ‘binary digit’ and it is the smallest unit of data in a computer.

Now, these Bits – these ones and zeroes – are used to store all kinds of information, from the text that appears on your screen, to the colors of an image, to the sounds that come out of your speakers. To store information like this, we use a bunch of bits together. The number of bits we have determines how much information we can store.

Now for our next term: It turns out, if you take 8 of these bits – 8 of these ones and zeroes – and put them together, that’s called a Byte. Sounds like a mouthful of food, but it’s spelled with a ‘y’ and it refers to 8 bits put together. In everyday terms, you can think of one byte as the amount of space it takes to store one single letter or symbol in a text document. If you wrote a short story with 1000 words, this would take up 1000 bytes of storage space.

That brings us to our next term. If you take 1000 bytes and put them together, that’s called a Kilobyte, often abbreviated as “kb”. Now, I will mention just once, that technically there are 1024 bytes in a kilobyte, and that’s because computers use binary and everything comes in powers of two. That said, it doesn’t really matter, it’s ok to think of a kilobyte simply as 1000 bytes, similar to how a kilometer is 1000 meters. One Kilobyte is enough space to hold about two pages of text. Back in the late 1970s and early 1980s, the 5.25” floppy disk was a popular storage option, and it could hold 360kb of information.

So now, what’s it called if you have 1000 kilobytes? It’s called a Megabyte, often abbreviated as capital “MB”. One megabyte is enough space to hold about 5 books, or one photo, or one minute of music. Back in the 1980s, we had these things called floppy disks. This was a 3.5” floppy disk that held 1.44MB of data, which was pretty good at the time, because most files were pretty small.

Alright, now you’re probably wondering, what’s it called if you have 1000 megabytes? 1000 megabytes is called a Gigabyte, and it’s enough space to hold about 400 books, or a thousand pictures, or 16 hours of music. By the mid 1990s, you could buy a 1GB hard drive for a couple hundred bucks. Today, you can buy 1 GB flash drive for about $5.

Ok, so what’s it called when you have 1000 gigabytes? 1000 gigabytes is called a Terabyte, and is often abbreviated as “TB”, and it’s enough space to hold about 400,000 large books (that’s about 30 school libraries), a million pictures, or two years of continuous music. Today, you can buy a 1TB hard drive for under $50. Yes, it’s pretty amazing.

So, to recap, we talked about Bits, how there are 8 bits in 1 byte, how there are 1000 bytes in 1 kilobyte, and 1000 kilobytes in 1 megabyte, and 1000 megabytes in 1 gigabyte, and 1000 gigabytes in 1 terabyte. I hope you’ve enjoyed this video and that you have a better understanding of digital storage terminology.

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Comments 33

  1. Mukta Gaikwad says:
    3 years ago

    Den good explain.
    Love from India………

    Reply
  2. Jasmeen Brar says:
    3 years ago

    thankuu soo much for this video..😊

    Reply
  3. Moha Ben 64 says:
    3 years ago

    Thanks man

    Reply
  4. Kashyap bharti says:
    3 years ago

    thank you sir

    Reply
  5. Dynisha Abreu says:
    3 years ago

    Wonderfully explained ☺☺

    Reply
  6. curlyhairgurl 101 says:
    3 years ago

    I never knew any of this until now thx sooo much!!!!

    Reply
  7. Chosen One says:
    3 years ago

    Thank you for this video….

    Reply
  8. intanwulans says:
    3 years ago

    Bit
    Byte
    Kilobyte
    Megabyte
    Gigabyte
    Terabyte
    Petabyte
    Exabyte
    Zettabyte
    Yottabyte
    Brontobyte
    Geopbyte
    Xonabyte
    Wekabyte
    Quexabyte
    Peptabyte
    Ochabyte
    Nenabyte
    Mingabyte
    Lumabyte
    Hanabyte
    Anabyte
    Lumabyte
    Coperbyte?

    Reply
  9. Aravind Kumar says:
    3 years ago

    Good

    Reply
  10. Devi Prasad Saklani says:
    3 years ago

    Very nice explanation method. thank u sooooo much sir

    Reply
  11. PKTM Enduro Rider says:
    3 years ago

    So i have 1,300,000 books/10 School libraries
    3,2 milion pictures
    And 7 Years of continuous music XDD

    Reply
  12. SUN INFOTECH says:
    3 years ago

    Very nice Sir
    #suninfotech

    Reply
  13. LIGHT says:
    3 years ago

    Beautiful

    Reply
  14. ; The Tongue Of Angels says:
    3 years ago

    I'm stuck on the "1024" how do I work that out??

    Reply
  15. JENNY JAY says:
    3 years ago

    Brilliant

    Reply
  16. william greenwood says:
    3 years ago

    OK , how much room do I need to keep window 7 and all when I cone my hard drive to a terabyte ??? in other ware how much space do I need to keep ??

    Reply
  17. Offical Jacob says:
    3 years ago

    How about a pettabyte?

    Reply
  18. Anum Memon says:
    3 years ago

    Very informative and clear explanation

    Reply
  19. SoggyBagel says:
    3 years ago

    soooo, does that mean that there are 8 quadrillion bits in a tb?

    Reply
  20. Ultimate Beast says:
    3 years ago

    Whoa 1 TB = 2Years Of Continuous Music.
    That's A Lot Of MUSIC

    Reply
  21. James Martin says:
    3 years ago

    Well done. I watched this with my son.

    Reply
  22. Jerrico King says:
    3 years ago

    So therefore if I had a music thing that lasted for 1024 minutes that home thing would be a gigabyte

    Reply
  23. Enrique Montano says:
    3 years ago

    I get it now 🙂

    Reply
  24. Alex Ennerfelt says:
    3 years ago

    A single byte can be a single character. The comparison of: a short story of 1000 words require 1000 bytes (1kb), is really inaccurate unless it's a thousand one letter words and punctuation. But that wouldn't make for a good story.

    Reply
  25. ayen says:
    3 years ago

    what a nice informative video. it is just great sir !!

    Reply
  26. Samina Khalid says:
    3 years ago

    thanx i learned so easily

    Reply
  27. Kian Park says:
    3 years ago

    Thank you, Dane! I've learned something today. Great video!

    Reply
  28. Indrini Mazumder says:
    3 years ago

    where is petabyte.

    Reply
  29. Pooja Singh says:
    3 years ago

    Best explaination thanks

    Reply
  30. Israel Alonso says:
    3 years ago

    A thousand words would require much more than a thousand bytes as each word is several letters long…

    Reply
  31. Abinandhu says:
    3 years ago

    thank-you Dane. it really helped😀

    Reply
  32. Somebody Sad says:
    3 years ago

    Thank you that was really useful

    Reply
  33. Smash Bandicoot says:
    3 years ago

    What comes before Bit?

    Reply

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