10 Interesting Facts about Hard Drives
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- Опубліковано 4 лип 2024
- Ten interesting facts about hard drives:
0:00 1. Construction
0:20 2. Form Factor
1:15 3. Connector
3:10 4. Voltage
3:38 5. Speed
5:26 6. Capacity
6:34 7. Air vs Helium
7:40 8. Magnets
8:17 9. SMART Drives
9:23 10. Future - Наука та технологія
Always something new to learn. I thought I knew all but one was new to me.
Still think it's amazing how reliable and fast hard drives have gotten for have spinning disks and. Bearing and motors.
Agreed. They keep pushing capacity limits too. Just curious to see how quickly SSD's catch up in $/TB and ability to match capacity.
@@htwingnut Every year I keep thinking they can't possibly cram more capacity into these things and every year (fortunately) I am proven wrong.
Excellent video!
love this thank you very much.
Keep it up 👍.. it was quite informative 😊
this channel is great, Nice work!
Thank you for the words of confidence! It means a lot.
@@htwingnut This did help me allot to study hard drives
I think very few people fully appreciate just how incredible hard drives are from an electromechanical perspective. The fact that they can perform their function with such precision and reliability while fundamentally remaining very much mechanical devices at their core is nothing short of amazing.
The earliest hard drive I used was on an IBM 1130 that had a 14" single platter accessed by a stepper motor and held about 1MB of data. It was *REALLY* slow. Later, I worked with IBM 3330 hard drives (look it up --- wow -- 200MB!) that had removable disk packs. Thanks for your videos and this channel. Very cool.
Mods are the following
Noise and vibrations Noise external as well as internal operations / then spinning faster and slightly slower hence the pulsing / hair like inductors to cause a polarity shift to be read and a charge to be programmed
Dampening pads / motor bearing heatsink and hot spot zones as well and cooled pcb
Hot spot zones help with gas and oil thinning
Hello. I've always wondered. why 3.5" drives had the same capacity as 2.5" drives. where the larger ones could fit more data. because they had bigger plates. I don't know for sure if my thoughts are true. Regards.
They contain the same data density or "bits per square inch". So while you can have a 4 or 5 TB 2.5" drive, it will require 5 platters to do so, where it will only require 2 on the 3.5".
Sometimes they use older tech on the lower capacity hard drives too, so less data density.
Although sometimes there are factory defects that can cause a disk to be rebinned and low level formatted by the factory to a lower capacity disk completely bypassing the "bad areas". It is surprising that today that 500GB 3.5" disks even exist. It seems 1TB should be lowest, where a single platter can contain over 2TB of data.
Can i plug a 2.5 inch hdd on to using sata power on the desktop where the connecter provided with both 5v and 12v but the 2.5 inch disk only take 5v. Is this safe to do so ??
Yes it's safe. The 12v pins aren't wired on the 2.5" disk, so they will just be ignored.
Where is SATA 4, i mean it is time for it we already have 2023.
True! I should have brought that up as part of future. Everything is going NVMe, but SATA III still holds its own with hard drives. Even the dual actuator drives from Seagate won't be able to exceed the 600MB/sec bandwidth. Close, but not there yet.
I'm old enough to have been wowed by and actually used ESDI and SCSI... then in the early 90's IDE in a 486 felt almost like paradise after fighting with the two dinosaur interfaces in 386 and 286 junk (no built in FPU), although SCSI in a Amiga or Atari ST was generally blissfully hassle free.
You are missing a bunch of history including MFM &RLL drives. And the 5” is 5 & a quarter. Also I believe your smallest is called a .85”