A computer is an electronic device that stores and processes data and is capable of operating other devices. The operation of the computer is divided into four basic functions: input, processing, storage, and output.
Once the computer’s programming instructs that a correction or adjustment must be made in the controlled system, an output signal is sent to an actuator. This involves translating the electronic signals into mechanical motion.
The computer requires a means of storing both permanent and temporary memory. The memories contain many different locations. These locations can be compared to file folders in a filing cabinet, with each location containing
FIGURE. Main components of the computer and the Microprocessor. The microprocessor is the brain of the computer. The microprocessor is constructed of thousands of transistors that are placed on a small chip. The microprocessor
Remembering the basics of electricity, voltage does not flow through a conductor; current flows and voltage is the pressure that “pushes” the current. However, voltage can be used as a signal; for example, difference
A computer processes the physical conditions that represent information (data). Hie operation of the computer is divided into four basic functions: Input: A voltage signal sent from an input device. This device can be