Computer
A computer is an electronic machine that operates by sequentially reading a set of instructions organized into programs that cause it to perform logical and arithmetic operations on binary digits. As soon as it is powered on, a computer executes, one after the other, instructions that make it read, manipulate and then rewrite a data set. Conditional tests and jumps make it possible to change the next instruction, and thus to act differently depending on the data or the necessities of the moment. The data to be manipulated are obtained either by reading memories or by reading interface components which represent external physical data in binary values. Once used, or manipulated, the data is rewritten, either in memories or in components that can transform a binary value into a physical action. The computer can also respond to interrupts that allow it to run specific response programs for each, and then resume sequential execution of the interrupted program.