Devices are physical components that are not part of a heart computer, but can nevertheless achieve the other two functions computer: data management and communication. Without them, the computer could theoretically work, but would be of no use, since it would impossible to send commands or data.
The devices can be located inside the computer case (known then internal devices) or outside(or external devices).
In first category, some very common devices (like network cards or graphics cards), are even integrated on motherboards, for reasons of cost and speed of data transfer. In the second, including all found elements that allow the user to interact with a computer (keyboard, mouse, screen ...).
Computer architecture
A computer is a complex system, capable of performing various tasksA computer is a complex system, capable of performing various tasks. For that it is composed of a set of hardware and software.
The first are the physical components of a computer: some of these elements materials are used for most transactions, while others are more specific to certain types of tasks.
The elements are sets of software programs that can tell the computer what tasks he must perform, and how to perform:
what are the operating system (like Windows, Mac OS or Linux), and applications that you ask your computer to run.
The first are the physical components of a computer: some of these elements materials are used for most transactions, while others are more specific to certain types of tasks.
The elements are sets of software programs that can tell the computer what tasks he must perform, and how to perform:
what are the operating system (like Windows, Mac OS or Linux), and applications that you ask your computer to run.
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