What is the function of scroll lock?

Answer 1

When activated, it prevents any computer function to modify scroll viewing itself at all costs, for example, a computer software can automatically scroll up a page you're viewing, but when this lock is activated, neither the software has the ability to do scrolling itself without your consent.

Answer 2

The scroll lock function on some keyboards can have several different functions. Some of these include placing a break in a document, lock scrolling, and it can toggle between number lock and caps lock.

Answer 3

Back in the days when there weren't any pictures on the computer screen, some programs used that key to allow you to "freeze" the screen for a time so that you had time to read the words.