Farms: Why “C” Is The Default Hard Drive Letter
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→Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the water cooler with TodayIFoundOut! Brand new videos 7 days a week! More from TodayIFoundOut How Did Jeans Become Popular? https://youtu.be/O1eUwpO76Pw?list=PLR0XuDegDqP3XRa-w_G0dy_aMMXj0Uq-k The Numerous Bodies Recently Found in Ben Franklin’s Basement https://youtu.be/tp61Yrj5lTA?list=PLR0XuDegDqP3XRa-w_G0dy_aMMXj0Uq-k In this video: The idea for designating different storage devices with simple letters is generally attributed to IBM’s virtual machine operating systems developed in the 1960s, starting with their CP-40 and CP/CMS systems, and later very notably, among others, copied by the CP/M operating system created by the company Digital Research, Inc. In the early systems (CP/CMS) the letters were used mostly to designated logical drives, although later (such as with CP/M), they were used to specify physical storage devices. Want the text version?: http://www.todayifoundout.com/index.php/2015/04/c-drive-default-windows-based-computers-2/ Sources: http://www.forbes.com/profile/bill-gates/ http://www.forbes.com/profile/warren-buffett/ http://www.forbes.com/profile/steve-ballmer/ http://www.forbes.com/profile/paul-allen/ http://www.telegraph.co.uk/technology/bill-gates/9812672/Bill-Gates-interview-I-have-no-use-for-money.-This-is-Gods-work.html http://windows.microsoft.com/en-us/windows/change-add-remove-drive-letter#1TC=windows-7 http://en.wikipedia.org/wiki/Disk_partitioning http://en.wikipedia.org/wiki/Drive_letter_assignment http://www.gatesfoundation.org/who-we-are/general-information/foundation-factsheet http://en.wikipedia.org/wiki/Hard_disk_drive http://en.wikipedia.org/wiki/History_of_hard_disk_drives#1980s.2C_the_PC_era http://cs.stanford.edu/people/eroberts/cs201/projects/corporate-monopolies/development_microsoft.html http://en.wikipedia.org/wiki/MS-DOS http://www.zdnet.com/article/tiny-microsoft-overtakes-the-mighty-ibm/ http://www.netmarketshare.com/operating-system-market-share.aspx?qprid=10&qpcustomd=0 http://support.microsoft.com/en-us/kb/51978 http://www.ecprogress.com/index.php?tier=1&article_id=7206 http://www.investopedia.com/ask/answers/08/microsoft-antitrust.asp http://en.wikipedia.org/wiki/Gary_Kildall http://en.wikipedia.org/wiki/Microsoft http://en.wikipedia.org/wiki/CP/M http://en.wikipedia.org/wiki/History_of_the_floppy_disk
Comments
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Reason: A and B were already reserved for floppy drives. End of story. I bet it didn't take you 4:53 to read this, did it?
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Cool.. Who knew? Well guess you did lol
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In the video is an angry IBM manager talking on a mobile phone... That picture is supposed to have been taken in 1980... Mobile phones did not exist in 1980.... Conspiracy theorist food :-P
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HDDs were mostly used in mainframes at the time while most workstations used Magneto-Optical drives. Surprisingly Mainframes never had any major paradigm shift, they just got better... They are still based on large IBM MCM (Multi Chip Module) units and they still make use of HDDs. However the modern MCMs such as the Power7 are much smaller. Seriously just google "IBM Power 4 MCM" to see what I mean...
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??? i am still 12 i really don't know what are you talking about
throw the meaning -
The pictured hard drive, with "chocolate" media, was crashed. Oh No.
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Interesting, so if she had just gone ahead and signed her name, Digital Research Inc would have been the ones who went into partnership with IBM and we may well have been using their products today instead of Microsoft's.
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Why spend 2 1/2 minutes explaining why his wife didn't sign the NDA? And then reveal the answer to the question at the end.
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my C:/ drive is actually my A:/ as my main windows installation, B:/ is for my programs, C:/ for my pc games etc
D:/ external document and story, sketches as well as assets for the stories ... currentlly running multiple HDD at the moment and none of them are floppy drives or disk drives (CDs/DVD).
I used to get annoyed when I looked at my computer drives and noticed A and B were missing so I when and changed them x_x -
Most of the information in this video is not needed.
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for the ones saying "mine is /dev/sda/"... NO ONE CARES
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QED: (a:) IBM invented everything compute-ie-ish, (b:) There's NOTHING new under the sun and (c:) something, something, something clever, witty, erudite or something.
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"Early PC'S didn't usually come with internal mass storage devices due to the expense..."
I feel old... -
I owned an actual IBM personal PC and know exactly why A and B drives were reserved. A and B were origionally 1.44 Megabyte 5-1/4 drives. The reason why two drives were used is that A was used as the default boot drive. Thus DOS was loaded from A drive. Now if you only had a single drive but you needed to copy or move files or save or load data, you had to pull the DOS disk out and insert another floppy in the drive. This became exceedingly frustrasting and tedious having to pull one disk out in oirder to insert a rdata disk or somnething like a game disk or other software disk. So a second drive was very popular. A designated as the DOS or Operating Systerm drive and B as the "Data" drive. End of "flopppy swapping"! (that was an actual term used). Also, those first PC's lacked memory and so a second disk could act as a kind of secondary memory...albeit very slow because it was limited to the speed of the mechanical parts in the drive...the sluggishness and need for data storage and instant software execution resulted in adding a hard disk which sped things up. A and B were still there but now functioned as dual data disks. 3-1/4 hard floppies had more storage capacity than the older and bigger 5-1/4 floppies. So people added one and eventually, the 5-1/4 drives died in popoularity. I remember these details in the sequence they happened because I used my own computer and computers like it at work. Finally, people got rid of 5-1/4 drives and used just A drive for 3-1/2 drives. C was designated for the first hard disk and B drive just fell silent and unused as a "reserve drive" on most PC's, plus..the drives were expensive and a lot of people could not afford two floppy drives and the operating systems in those days were tiny compoared to the multi-gig OS' these days...so B usually remained unused or as a second 3-1/2 drive. Finally, drive D came along as a CD ROM drive and for years, D was designated as the "ROM" drive. so if a person added a second hard disk, it automatically was assigned drive E. Now if you know about disk partitioning...things got complicated very quickly! I will not cover those details.
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Every time you called him "Gary Kidall" I died inside a little. It's Kildall, pronounced "killed all".
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Answer starts at 3:09
A and B were originally reserved for floppy drives. -
This only applies to Windows users....
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Wow even though I have been around computers a long time, I too found this video as clear as doing taxes in Russia, or Chinese Algebra. Nice work guys. Oh by the way, I think there was some fragments in your C drive.
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I c
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quite thorough and carefully worded :)