n your scanner. However, without the program, anything you type on the keyboard is useless, and the same goes with any other input device. When you type on your keyboard, the program in the computer instructs the computer to convert these keyboard inputs into binary codes. For example, if you type the letter “A”, the program in the computer tells the computer that “A” equals 01000001. This way the computer understands what you are saying. In return, the computer sends out an output. An out is displayed on your monitor. Output is information, which is run through the computer and displays the result on your monitor. When the computer is running this calculation this is called, processing information. So when you press the key “A”, the computer receives 01000001, checks to see what is in the space 01000001, retrieves what’s in that space and places it on the monitor. This is input, output, and processing.So far, we covered three of the five functions of the computer. Now lets look at the information holding. This is a very important aspect of your computer. Without this, your computer would not be able to perform its tasks. There are basically two main information-holding devises, which are RAM and ROM; read-only memory is your programs. The place in your CPU where your instructions are held. This tells your computer what to do. RAM, random-access memory is basically a place to store information for a short period of time. RAM, is where your input is stored until the computer finds out what to do with it. When you type in “A” the controller goes store the information in RAM, then goes into ROM for instructions. Once ROM tells the computer where “A” is located, (that key is located in 01000001) the computer retrieves the information and then goes to RAM, (this is what you looking for) and displays it on the monitor. This is a very simple explanation of how your computer work...
