Since inception most editors on PC platform have overwrite mode and it suck. Let me explain in detail.

Normally most editors from 1990 are using insert mode. And when you type character then this character will be inserted at place where caret is blinking and text to the right from caret will move to the right.

Imaging you have text “This | a car”. Symbol | showing where is caret is. And when you type “is” then text will look like this “This is| a car”. It is trivial, and everybody knows what I’m talking about and it is everywhere like this from PC to tablet, TV’s and phones.

But there are still many applications on PC that can switch

Current keyboard layout was born long time ago with release of IBM PC. Later it was changed with AT model where modern keyboard layout was born. Not every key is used how it was intendent. Some keys are doing nothing like Scroll Lock and there only few applications that uses it. Some keys doing stuff that most regular users are not aware of. For example: “Print Screen” or “Pause|Break” key. Numeric key on digital section to the right are also confusing to people because depending on Num Lock key they can do different roles. They can be keys or can be keys that move cursor.

But there is one key that not only useless but it actually probably most annoying