The monitor displays the computer's user interface and open programs, allowing the user to interact with the computer using the keyboard and mouse. Most modern monitors are made using LCD technology, and they are also known as flat screen displays.
RAM stands for random access memory. It is a type of computer memory that can be accessed randomly. RAM is the most common type of memory found in computers and devices. Because information is accessed randomly, the computer can access information much faster than it would if it was only reading the hard drive.
Inputs / Outputs
In computing, input/output is the communication between an information processing system (e.g. a computer) and the outside world, like a human or another information processing system. An example of an input device is a keyboard. An example of an output device is a printer. An input device sends information to a computer, and an output device receives information from the computer.
A touch screen is a display that is also an input device. Most modern touch screens detect human touch. Touch screen devices accept input directly through the screen, meaning they do not need external input devices such as a keyboard or mouse.