Tablets $($e$.$g$.,$ iPads$)$ and cell phones make extensive use of to store the operating system and applications that are included with the device.

RAM

Optical memory

Cache memory

What is a virtual private network $($VPN$)?$

A way to use the public telecommunication infrastructure $($e$.$g$.,$ Internet$)$ to provide secure access to an organization's network

A private network, provided by a third party, for exchanging information through a high$-$capacity connection

A type of cable composed of four $($or more$)$ copper wires twisted around each other within a plastic sheath

A natural part of the Earth's environment that can be used as a physical path to carry electrical signals