Understanding Essential Computer Concepts
Alex Alexandrou · 2021
The computer is an electronic device that accepts input, processes data by modifying or manipulating it, stores the data for further reference, and produces output, all according to a series of instructions or commands. The basic human–computer interaction consists of physical inputs such as keyboards, mouse, voice commands, tabs in screen, to convert physical actions and conditions to binary data. The miniature electronic circuits within the computer are the most basic building blocks, using one or more inputs to produce a single output, based on logical functions. Computer programs that encode or decode video for viewing are called codecs. The quality of the graphics card and the display monitor dictate the quantity, size, and color of the pixel display resolution. Computer-based images contain a matrix of thousands or millions of pixels. A quantum computer will try every possible path between two points simultaneously and will determine the best route in a fraction of the time of a conventional computer.