A computer is a computing device that is capable of receiving, storing, and processing information in a useful way. A computer is programmed to perform logical or arithmetic operations automatically. The computer monitor, also known as a screen, shows the information of your computer as images and texts, which are generated thanks to a video card that is inside the computer tower. A computer program, application or software, are a set of instructions in sequential form, called code, which through their interpretation by the operating system or hardware, allow a laptop or desktop computer to carry out a specific action. Characteristics of a basic executive computer

RAM memory from 4 GB to 8 GB. 500 GB or higher hard drive. Screen between 13″ to 15″ (The larger the screen, the greater the weight of the equipment in the case of a laptop) Battery with a duration of 10 hours (in the case of a laptop) computer types supercomputers. The most powerful devices in the world are actually collections of different computers integrated into a single unit, which can be powered up exponentially. ... Mainframes. ... Personal computers (PCs). ... Portable computers (laptops, netbooks). ... Tablets and cell phones.