https://wodewangzhishime.blogspot.com/2021/08/plug-off-cable.html?m=1 . Ref: https://wodewangzhishime.blogspot.com/2021/09/httpswodewangzhishime_10.html . Me: In stock exchange, 100 stock/10 buying= $10, 100 stock /100 buying= $1 John: Stock is a static memory. . Buying is a dynamic memory either. . While (stock exchange is running) { Dynamic stock = 100; Dynamic buying ; Socket value () { Dynamic Value = stock/buying; } } 1) There are 2 type of memory. .One is static . . One is dynamic . 2) Memory is just a register. .If this register is read and write, it is dynamic memory. If this register is read-only, it is static memory. When a register is writable, we call it dynamic memory. .Else, we call it static memory . . Me: Hackers change the (dynamic memory) (buying) into a (static memory) (buying). As a result, the register is read-only. . John: And then, a natural phenomenon become a man-made phenomenon. . Me: If this register is read-only, a parallel input is not availabl...