Fill the gaps with the following words:

Hardware, monitor, instructions, output, storage, sections, execute, ports, is fed, software, brain, performs, data, input, peripherals, devices, communication

First data (1)into the computer memory. Then, when the program is run, the computer (2) a set of instructions and process the (3). Finally we can see the results (the output) on the screen or in printed form.

A computer system consists of two parts: hardware and (4). (5) is any electronic or mechanical part you can see or touch. Software is a set of (6) called a program, which tells the computer what to do. There are three basic hardware (7): the central processing unit (CPU), main memory and peripherals.

Perhaps the most influential component is the central processing unit. Its function is to (8) program instructions and to coordinate the activities of all other units. . In a way it is a (9) of a computer.

The main memory (a collection of RAM chips) holds the instructions and data which are being processed by the CPU.

(10) are the physical units attached to the computer. They include storage devices and input/output (11).

(12) devices (hard drives, dvd drives or flash drives) provide a permanent storage of both data and programs.

(13) devices enable data to go into the computer’s memory. The most common of them are the mouse and the keyboard.

(14) devices enable us to extract the finished product from the system. for example, the computer shows the output on the (15).

On the rear panel of the computer there are several (16) in which we can plug a wide range of peripherals. They allow the (17) between the computer and devices.

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