Activating and deactivating the number pad is done by pressing the Num Lock key, which is the top right key on the number pad!
(Image-1) Numeric keypad or number block!
Numeric keypad can be a separate device that connects to a computer.
As I said, a number pad can also be a separate device that isn't built into a keyboard. Numeric keyboards are usually connected to a computer with a USB cable. However, older keyboards may use a serial port instead of USB. Some separate number blocks have a single-line LCD screen; B. a calculator and the Kensington keyboard on the right.
Anyone who is familiar with the numeric keypad or calculator to enter numbers or perform calculations quickly should have 10-key experience. It also means that you don't have to look at the keyboard while using it.
(Image-2) External separate number block and number block!