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A computer processes or processes the data which are provided, for example can make the average of a previously entered data, make a graph of the data or provide an ordered list from highest to lowest of such data.
To perform these processes, the computer must have the resources to store information while it is made, the resource that performs that function is called memory.
A devices that allow data entry or offer information and made to users are called peripherals.
Schematically a computer consists of:
Input Unit: Allows entering information into the computer, there are two types of devices, those that convert data into a format capable of being interpreted by the computer as the keyboard and allow direct input and the scanner, readers cards or barcodes or touchscreen.
Storage Unit or Memory Devices where data and programs are stored for processing. There are two types of main memory, consisting of integrated circuits and which in turn is subdivided into RAM and ROM; and secondary memory, where other data that have no place in the main are stored, constitute Hard drives (HD), CD-ROM, floppy disks (FD), Tape Drives ..
Unit Arithmetic / Logic: is the party responsible for processing the data, also known as ALU (Arithmetic Logic Unit). The operations performed are arithmetical addition, subtraction, multiplication and division; and logical type: equal, greater than or less than.
Control Unit: Directs the implementation of the program and controls both movement between memory and ALU, and the signals traveling between the CPU and peripherals.
Output unit: They have already developed the user data in the memory of the computer, the most common are the screen and printer.
Guest11:
Gracias pero, ¿no sabes lo que significa?
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