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Computers are complex machines that perform a wide range of tasks, from simple calculations to complex simulations. At a high level, a computer works by executing instructions that are stored in memory. These instructions are executed by the central processing unit (CPU), which is the “brain” of the computer.

To understand how a computer works, it’s helpful to break down the different components and how they work together.

  1. Input Devices Input devices, such as keyboards and mice, allow users to input data into the computer. Other input devices, such as microphones and cameras, allow the computer to receive input in other forms, such as audio and video.
  2. Memory Memory, or RAM, is used to store data and instructions that are currently in use by the computer. When a program is executed, the instructions and data are loaded into memory, where they can be accessed quickly by the CPU.
  3. CPU The CPU is responsible for executing instructions and performing calculations. It does this by retrieving instructions and data from memory, processing them, and then storing the results back in memory.
  4. Output Devices Output devices, such as monitors and printers, allow the computer to display or output data to the user. Other output devices, such as speakers, allow the computer to output audio.
  5. Storage Devices Storage devices, such as hard drives and solid-state drives, allow the computer to store data and instructions that are not currently in use. This data can be retrieved and loaded into memory when needed.
  6. Operating System The operating system is the software that manages the computer’s hardware and software resources. It provides a user interface that allows users to interact with the computer and manages the execution of programs.
  7. Software Software refers to the programs that run on the computer. These programs can perform a wide range of tasks, from basic word processing to complex data analysis.

In conclusion, a computer works by receiving input from input devices, storing and processing data in memory using the CPU, outputting results to output devices, and storing data on storage devices. The operating system manages these resources and provides a user interface, while software programs perform specific tasks using the computer’s resources.


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