In a third-class lever, the input force is applied between the fulcrum and the load, and both move in the same direction. The amount of applied force is always greater than the output force of the load, but the load is moved a greater distance than that over which the input force is applied.
Broadcasts are generally used for several reasons: Address Resolution Protocol (ARP) uses broadcasts to map physical addresses to logical addresses. To build the table of hosts, a device needs to send a broadcast to every other device on the network to essentially find out who is where.
Basically, computers work by taking commands and giving feedback: input and output. The hardware in the computer takes the input from the user or a program and provides the result (text, image, file) that is desired.For example, when you type letters on a keyboard, it analyzes the keystroke and electronically displays the image of the letter on the screen.