HDD Project

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by Lucas Dudley9 views·Updated Sep 24, 2021
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  1. Welcome to the history of the hard drive.
  2. The development that really changed the course of data processing
  3. and data storage to begin while technically magnetic storage on
  4. discs or drums was developed in the Early or late
  5. 1920s, early 20th century.
  6. Um the first commercial and practical hard drive came out
  7. in The 50s by IBM, It only had a total
  8. capacity of about 3.75 MB but really set a new
  9. standard compared to the previous techniques for data storage.
  10. Speaking of which probably the most reliable and most common
  11. storage type.
  12. Before this was magnetic core memory, which relied on these
  13. small um actual I guess cylinders that would rotate, representing
  14. if something was a one or a zero as you
  15. can see here before.
  16. This punch cards were a very manual and slow process
  17. of storing data but it could be sorted rather easily.
  18. Tape drives also were quite popular before the hard drive,
  19. but we're limited in read and write speeds quite dramatically.
  20. The initial evolution of the hard drive was really focused
  21. on a decrease in size and an increase in capacity.
  22. Um the first five and a quarter in uh form
  23. factor hard drive came out in the 1980s and was
  24. really a milestone compared to the really large discs and
  25. drums that were used prior to this, making it a
  26. lot more practical for personal computers and other things.
  27. The 3.5 inch size, which is still used to this
  28. day, um came out later and then in 1998.
  29. IBM really dropped the bombshell.
  30. The micro drive which was a hard drive with a
  31. size of just an inch in both directions, which was
  32. really pushing this small scale data storage forward.
  33. So the big focus in the evolution of these hard
  34. drives was a decrease in size, primarily along with the
  35. increase in storage.
  36. Additionally, power efficiency was a major concern and still is
  37. to this day, it's one of the big downsides of
  38. the hard drive in comparison to SSD As well as
  39. obviously an increasing capacity, the first drive for just a
  40. few megabytes but now we have hard drives upwards of
  41. 16 terabytes um and also like developing the actual seeking
  42. techniques for locating the pieces of information on the disks.
  43. These algorithms have evolved a lot since the first like
  44. evolutions and a lot more efficient at locating often including
  45. like a small flash cash.
  46. So that frequently used files can be stored on this
  47. temporary cash before being written to the dr nowhere drives
  48. are much more have integrated this a lot more Prior
  49. to the 2000s.
  50. This is quite rare.
  51. So there were a lot of huge impacts primarily in
  52. computing but I guess you could translate that to data
  53. processing and how that had an influence on society um
  54. having this increase in storage capacity really enabled.
  55. The expansion of data processing and allowed for mobility is
  56. non volatile memory, meaning if there's no power to it,
  57. none of the data was lost.
  58. So this could be transferred easily.
  59. However, hard drives are quite flawed and they are susceptible
  60. to damage because they rely on physical spinning disk which
  61. takes a lot more energy than something like a solid
  62. state drive.
  63. Airborne contaminants and other external factors can, well, they can
  64. cause drive failures which results in the loss of all
  65. of the data.
  66. SSD is by comparison also have significantly less required for
  67. the construction are more power efficient, much faster and much
  68. smaller. Speaking of which, while drives are still a huge
  69. and essential part of data storage, the SSD is a
  70. superior in almost every single way.
  71. Um Sandisk introduced the first one in 1991, which while
  72. it has a in comparison to the hard drives of
  73. the time, extremely small capacity, uh, the size and the
  74. power efficiency, which was much better.
  75. And also was a stepping stone for the first envy
  76. mes STS, which is a different interface with Samsung releasing
  77. the first M V M E S S D in
  78. 2013 with speeds of three gigabits per second, which is
  79. a huge, huge step up from their previous efforts in
  80. talking sts.
  81. Yeah, we're definitely entering an age of the SSC as
  82. prices have dropped dramatically even over the past five years.
  83. Um, Commercially available eight terabyte drives are just dominating the
  84. market and while there's still not quite through the price
  85. of hard drives, the reliability increases, the speed increases in
  86. the size increases have certainly increased their popularity.
  87. Additionally, raid cards, which is a technology that goes far
  88. back into the history of the hard drive are becoming
  89. more commercialized in our more are available to the consumer,
  90. which basically pairs up multiple drives together so they can
  91. be written to and read at the same time, increasing
  92. the speed by just how many you're writing too at
  93. the same time.
  94. These have insane um, write speeds and are used in
  95. data centers as you look to the future, It's in
  96. all likelihood most of our storage will be uh network
  97. attached or in and as or in a data center
  98. so that it's not locally stored on the device but
  99. through the internet or your own network stored externally in
  100. a safer backed up location.
  101. That in a nutshell is the history of the hard
  102. drive. Here are the resources used for this video and
  103. references and thank you.