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Numbers to feel dizzy

Discussion in 'General Discussion' started by slisse, Nov 7, 2018.

  1. slisse

    slisse Moderator Staff Member

    When we think about computers there are some expressions that are so familiar that we use them without thinking (too much) about what is behind them.

    Here at IB:
    avatar = maximum 50 KB = 51,200 bytes
    picture/movie = maximum 800 KB = 819,200 bytes

    Bit

    this represents the value 0 (off) or 1 (on)

    Nibble

    1 Nibble = 4 bits

    Byte

    1 Byte = 8 bits

    And now we go to the bigger values


    Kilobyte (KB)

    1 KB = 1,024 bytes

    Megabyte (MB)

    1 MB = 1,024 KB
    1 MB = 1,048,576 bytes


    Gigabyte (GB)

    1 GB = 1,024 MB
    1 GB = 1,073,741,824 bytes


    Terabyte (TB)

    1 TB = 1,024 GB
    1 TB = 1,099,511,627,776 bytes


    Petabyte (PB)

    1 PB = 1,024 TB
    1 PB = 1,125,899,906,842,624 bytes


    Exabyte (EB)

    1 EB = 1,024 PB
    1 EB = 1,152,921,504,606,846,976 bytes


    Zettabyte (ZB)

    1 ZB = 1,024 EB
    1 ZB = 1,180,591,620,717,411,303, 424 bytes


    Yottabyte (YB)

    1 YB = 1,024 ZB
    1 YB = 1,208,925,819,614,629,174,706,176 bytes

    Anything bigger?
    As of 2015, there are no approved standard sizes for anything bigger than a Yottabyte. However, the two standards that have been proposed are the Hellabyte or Brontobyte.


    Using 25 GB Blu-ray discs

    1 TB = 40 discs
    1 PB = 41,943 discs
    1 EB = 42,949,672 discs
    1 ZB = 43,980,465,111 discs
    1 YB = 45,035,996,273,704 discs
     
    Last edited: Sep 10, 2019 at 10:08 AM
  2. Neophyte

    Neophyte Moderator Staff Member

    Back in 1985, I saw a 1 terabyte disc storage system. It was 6 feet tall 10 feet wide and 4 feet deep. Today I can go to Walmart buy a terabyte drive and walk out with it in my pocket.
     
  3. pussycat

    pussycat Moderator Staff Member

    You remember 1985?

    You must be really really old.

    :D:D:D:D
     
  4. Dane211

    Dane211 Wife loves me in nylon!

    AHEM!!!! (you'll get here, sooner than you imagine!):D
     
    curiousFred and slisse like this.
  5. slisse

    slisse Moderator Staff Member

    Oops, then I better not mention that I worked with this:
    s-l300.jpg
    :D
     
  6. EggHead

    EggHead Trusted.Member

    Computer space is generally measured in terabytes these days, so I guess petabytes will be the next step up for computer memory.
     
  7. pussycat

    pussycat Moderator Staff Member

    You trained on an abacus, but I love you anyway

    :cool: ;);)
     
    curiousFred, Brutus58 and slisse like this.
  8. pussycat

    pussycat Moderator Staff Member

    I suppose its better than the alternative.
     
    curiousFred, Brutus58 and slisse like this.
  9. Neophyte

    Neophyte Moderator Staff Member

    I learned to program computers using punch cards and paper tape. I am proficient in using a keypunch machine. I also took a class on using this. I still have one in a desk drawer.
    [​IMG]
     
  10. pussycat

    pussycat Moderator Staff Member


    It's not a lost art. I have one too, but mine's circular.
    I also can read verniers. Some of us young folk can exist without "an app for that".

    :D:D
     
  11. slisse

    slisse Moderator Staff Member

    Like this?

    1024px-Circular_slide_rule.JPG
     
    Insp Gadget, Brutus58 and pussycat like this.
  12. slisse

    slisse Moderator Staff Member

    Not too long ago:

    vf5525.jpg vf5555.jpg
     
  13. Hal

    Hal Trusted.Member

    Insp Gadget, Brutus58 and slisse like this.
  14. slisse

    slisse Moderator Staff Member

    Indeed, the good old days :D:D:D
     
    curiousFred likes this.
  15. slisse

    slisse Moderator Staff Member

  16. slisse

    slisse Moderator Staff Member

    Things go so fast that maybe some people here did hear more?
     
  17. slisse

    slisse Moderator Staff Member

    Any new information?
     
  18. slisse

    slisse Moderator Staff Member

    The world's first 5 MB hard disc

    5mbibm-hard-drive-1956-history-this-one-post-alone-would-16526332.png 8pics.jpg world's first 5 MB hard drive.jpg
     
    curiousFred, Insp Gadget and Brutus58 like this.
  19. pussycat

    pussycat Moderator Staff Member

    Insp Gadget and Brutus58 like this.
  20. Brutus58

    Brutus58 Trusted.Member

    Not all of us. Just the millennials. Most don't know how to write a letter by hand using a pencil or pen.
     
    IsoUser, Insp Gadget and l4a1 like this.