as you know text files transfer much faster than binary files. is it da same with files on the sd memory stick?
No, I don't think the book is wrong. But I think you fail to pick up the message that the authors tried to send out. If that is a problem on your side, or if it is a failure of the authors, is a completely different discussion.
"its microsfoft press. steve balmer and bill gates checked it"
You really think that they personally proof-read each book themselves?!
"i saw it in a book about programming ... 'LEARN HTML5'"
Hmmmm... while HTML5 is a certain kind of programming, it is very far removed from the kind of programming for embedded firmware relevant to this forum!
You really shouldn't be looking for low-level implementation detail in such a high-level application book!!
LOL. I once spoke to a non-techie and he was quite insistant that it was William Gates who wrote all the Microsoft software. He actually got quite agitated when I tried to tell him what really happened.