we want applications of pendriVe to pendrive data transfer using ARM7
"Someone asks you "how does this television work" do you go on about currents and electrons and capacitors and stuff or do you say "you get a picture when you press this button". For sure most people will EXPECT the second answer."
Good question. The answer - obviously - depends on context.
If a 7-year-old asks the question, i't sobvious they want to know about buttons.
If an EE student asks the question, it would be obvious that they have passed that stage, and instead wants to know about the technology inside.
But you only bring whatever context you write in your posts. We do not know anything about you. We do not know anything about your projects, except what you write or link in your posts. So when people point out that your post is too light on information, it should be obvious to you that you have to supply more information to make sure that you get "the" answer to your question, and not one of potentially a large number of answers that just happens to match more or less closely what you seemed to ask about.
And people who do ask the questions will normally not have the skill to figure out if they get a technical answer that is actually the answer to the wrong question.
I suspect the writers of the big bag theory TV program read these threads periodicaly in search of inspiration. I always think about "Sheldon" every time I read these threads.
Cheer up and Happy new year to all.