Microprocessor: The microprocessor as the brains of the computer. Is responsible to perform almost all operations and calculations that allow the computer to run the various tasks, depending on the running program. It is, therefore, the core device of the machine, which defines the speed, power generation and processing system, so a next-generation microprocessor is often more powerful and faster than previous generations.
Motherboards: Just as a brain man is useless by itself, a single microprocessor is but one piece of silicon no function. To do its job, this circuit requires the support of various peripherals, precisely, the motherboard is the bridge that connects it all. In turn, the motherboard integrate various resources that support data processing and communication with external devices in the system, for example, the communication bus between the microprocessor and RAM memory , connection interfaces with the storage media, communication controllers for the expansion slots, the controller for handling graphics on the monitor etc.
In early computers, the majority of devices for specific functions had to be added externally via the expansion slots, however, thanks to advances in circuit integration techniques have been included basic peripherals on the same motherboard design, hence they are considered as the type of "all in one", they include video drivers, sound drivers, circuits fax - modem and network controller. That is why it has greatly simplified PC system assembly, as almost sufficient to install the chip on the motherboard, RAM and add some external components (keyboard, mouse and monitor), to obtain a fully functional computer.
RAM: To perform complex computer operations, the microprocessor requires a constant flow of input data (instructions and parameters) and output (results). The RAM serves as temporary storage for data that this circuit takes (such as those provided by the user) and issues (and processor). The video card one (1) and zeros (0) which sends microprocessor are converted by the video card information is displayed on the monitor.
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