The answer to this is Optical mouse.
The reason the answer is optical mouse is because the optical mouse is a computer mouse which uses a light source, typically a light-emitting diode, and a light detector, such as an array of photodiodes, to detect movement relative to a surface.
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Aerospace, petroleum, and automotive industries
If a terminal emulation program is used and the devices should be reotely managed, then you should use the Telnet protocol. <span>Telnet is a simple, text-based network protocol that is used for accessing remote computers over TCP/IP networks like the Internet. </span>It allows the user access<span> to a text terminal and all its </span>applications<span> such as command-line for example. </span>
To prevent other users from accidentally or deliberately changing, moving, or deleting data in a worksheet, you can lock the cells on your Excel worksheet and then protect the sheet with a password.
