What is Custom USB? 
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climbphone
Posts: 64

Joined: 11/9/2020
Topic  What is Custom USB?       Flag »  Reply »

NOR is used to store cell phones' operating systems; it's also used in computers for the BIOS program that runs at start-up.


Flash memory is inside your smartphone, GPS, MP3 player, digital camera, PC and the USB drive on your key chain. Solid-state drives (SSD) using flash memory are replacing hard drives in netbooks and PCs and even some server installations. Needing no batteries or other power to retain data, flash is convenient and relatively foolproof. NAND flash reads and writes sequentially at high speed, handling data in small blocks called pages. This flash is used in solid-state and USB flash drives, digital cameras, audio and video players, and TV set-top boxes. NAND flash reads faster than it writes, quickly transferring whole pages of data. Less expensive than NOR flash, NAND technology offers higher capacity for the same-size silicon.

As a NAND chip wears out, erase/program operations slow down considerably, causing more retries and bad block remapping.

hugdiy
  Sunday, December 20, 2020 at 9:03:52 AM
watchesbiz
Posts: 27498

Joined: 3/21/2021
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  Wednesday, April 27, 2022 at 1:34:58 AM

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