What is a flash page
What is Flash, when and why to use it?
Jun 20, · First of all, we need to know our way around the different entities on a flash chip (or “ package “), which are: the die, the plane, the block and the page: NAND Flash Die Layout (image courtesy of AnandTech) Note: What follows is a high-level description of the generic behaviour of flash. There are thousands of different NAND chips. Flash is a vector animation (read about vector animation software) software, originally designed to create animations for display on web pages. Vector graphics are .
June 20, 21 Comments. In the last post on this subject I described the invention of NAND flash and the way in which erase operations affect larger areas than write operations. Note: What follows is a high-level description of the generic behaviour of flash.
The important bit here is that program operations i. As discussed, these program operations take place at the page level. You can then how to play xbox live without updating your fresh data back out again with read operations, which also take place at the page level.
Where it gets interesting is if you want to update the data you just wrote. There is no update operation for flash, no undo or rewind mechanism for changing what is currently in place, just the erase operation. An erase operation on a flash chip clears the data from all pages in the blockso if some how to take t bomb 2 the other pages contain active data stuff you want to keep you either have to copy it elsewhere first or hold off from doing the erase.
If you were to erase the block every time you wanted to change the contents of a page, your flash would wear out very quickly. So a far better alternative is to simply mark the old page containing the unchanged data as INVALID and then write the new, changed data to an empty page.
Updating a page in NAND flash. Note that the new page location does not need to be within the same block, or even the same flash die. It is shown in the same block here purely for ease of drawing. For now though, think about the way the device is filling up with data.
This is where the bad news comes in: it takes many times longer to perform an erase than it does to what is the meaning of treasury bill a read or program. And that clearly has consequences for performance if not managed correctly. A program operation sets any bit with the value of 1 to 0, so for example could become This means that later on it is still possible to perform another program operation to set to for example.
Pingback: Understanding block sizes in a virtualized environment vmPete. Is there a simple file management system than can be used with micro-controller to manage files writing in the nand flash? The most-secure method is to use encrypted drives, so that the data can be erased cryptographically by removing the key. Not really. I meant NOR flash! Not NOT Flash. You are commenting using your WordPress.
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Even the detailed part was too. Thanks a lot. K says:. April 8, at am. April 11, at pm. Ishmaria says:. June 12, at pm. July 23, at pm. August 16, at pm. January 17, at pm. Jam says:. January 27, at pm.
March 29, at pm. Thank you. August 10, at am. I can now understnad NAND flash. Can you make a post on NOR flash? August 14, at am. Mohammad says:. September 5, at am. September 9, at pm. September 18, at pm. Hope that clears up any confusion. Or not. Leave a Reply Cancel reply Enter your comment here Fill in your details below or click an icon to log in:.
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Is Flash Gone for Good?
Jan 15, · Flash used likedatingall.com file extension for exported content designed to be embedded in a web page. These files could also be opened on the desktop using Adobe Flash Player, but that’s no longer the case. So what do you do if you have likedatingall.com file that you rely on, or you want to look at an old project or website that you made in Flash? There flash website has a very nice image on the home page which has a couple of butterflies flapping there wings and flying and a rotating sun in the distance. This background image stays on all of the pages but is covered up by the old paper effect when opening from the menu tabs. This is a simple but effective website with a good use of flash. Adobe Flash Player EOL General Information Page. Since Adobe no longer supports Flash Player after December 31, and blocked Flash content from running in Flash Player beginning January 12, , Adobe strongly recommends all users immediately uninstall Flash Player to help protect their systems.
Flash is a vector animation read about vector animation software software, originally designed to create animations for display on web pages. Vector graphics are ideal for the web because they are so lightweight. Over the releases of new versions of Flash, Macromedia has made Flash more and more controllable via programming, where they have it positioned as a competitor to HTML to build interactive web sites and applications such as an e-commerce store. All of these points are true, but they can be true for HTML pages as well except for the vectors.
I will address these points now:. Flash pages can be made to load faster, but most of the time, the way they are designed in the real world, they do not.
That is not a Flash problem, it is more an issue of the Flash developers going nuts with fancy and heavy Flash movies. HTML caches pages as well, once images are downloaded they are held in your browser's cache. The cached images are then used instead of downloading them from the server again. With new technology like ASP. Even without these new tools, properly designed HTML for most dynamic sites can provide a good user experience.
Before I start trashing Flash, I have to first say that I think it is a great tool, but not in all things and certainly not in the all-encompassing way that Macromedia would suggest. Flash handles text very poorly. The web for the most part is about text, we go to the web to read about things, whether it be articles like this one, or what is in your shopping cart, or the latest baseball stats, it is all text. Flash development usually takes much longer than the HTML equivalent.
You can do some really nice work in Flash that would be difficult and sometimes impossible in HTML alone. Things like complex animations and playing video spring to mind. But even today, I still have to deal with people who may be using some old browser that can break all but the simplest of HTML code.
In my humble opinion, I would use Flash to create a presentation that is similar to a television commercial. This type of presentation is something where the user sits back and enjoys the show as the Flash movie delivers the message to the client with animation, sound, and possibly video. Rather I am talking about informative movies that the user can decide to view to learn about something like a product or a service.
I can also see Flash being used in straight animations, like what your kids watch Saturday morning. The only danger here is that if the user doesn't have the proper Flash plug-in, they won't be able to use those components and as such in many cases like with a Flash based navigation bar the user will not be able to use your web site!
If you liked the article and you want to see more let me know! What is Flash, when and why to use it? Also available in SPANISH Flash is a vector animation read about vector animation software software, originally designed to create animations for display on web pages.
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