They are used so you can have separate windows open at the same time, it leads to some excellent multi-tasking capabilities. Some of the best uses are too leave one tab and then come back to it later, and also copying and pasting things is a lot easier with tabs.
I got a 66 percent in computer Apps
maximum tabs that can be opened are "420" try it
with a mouse
tabs are used to position text within a line
If your computer shut down unexpectedly and you want your tabs. Chrome shows the popup to restore last running tabs.
pull up a lot of tabs
I've never seen tabs on a computer, but there is a key marked "Tab" in the upper left of a standard keyboard.
Bitewing
These are indention keys they come from the old typing keyboard.
yes you should
Pull tabs, pop tops, stay tabs (also called ecology tabs).
If you put in an answer then click save, and the site opens multiple tabs then I suspect your computer has a virus or is malfunctioning.