this post was submitted on 24 Jun 2024
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Linux
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From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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"SmartMedia" cards are the latest consumer flash package that you can get without a controller. Everything else has one. Even SD cards do. SD cards may not have a very good wear leveling algorithm, they may not have a lot of memory to keep track of fancier remapping structures, but they do have some. SD cards have a little arm processor inside managing everything, because it's far cheaper than not having one. That processor is responsible for self testing pretty much everything at the factory - the testing jig is mostly there to deliver power and wait for the card to map the good and defective flash regions all by itself.