Basic Operation of Computer and its General Functions

Computer design with the composition of hardware and software, therefore we need to understand the basic operations how the computer works of the system. Through the logic of both the hardware and software. It’s understood that we need to apply care to our computer unit. We should understand and identify how to use it. And how it works after you press the power button on the computer monitor and the power button on the front panel of the system unit of the computer. Remember, if we don’t know how to use our computer, it’s understood that you will contribute error to the system. And through this, it will bring serious damage of both the hardware and software of the computer.

This lesson is the most basic at all, we do this always once we use the computer. This would mostly apply to the beginner of the computer and those other users that didn't know how to operate the computer properly.

  1. POWER UP SYSTEM- This involved with turning on the computer properly, which of the devices turning on first. We know that there are plenty of hardware or peripherals connected to the system unit. They are monitor screen, system unit (CPU), printer, speaker, and scanner. And this computer may connect to the AVR (Auto Voltage Regulator) or a UPS (Interrupted Power Supply). Just turn on first the AVR or UPS and turn on the monitor screen and then turn the CPU (Central Processing Unit) on.
  2. SELF TEST- After turning on the computer properly, the computer will conduct a Power On Self Test(POST) at around 5 seconds depending on the amount of the memory. This POST through the BIOS(Basic Input Output System) will check the condition of the main hardware connected internally, such as the HDD(Hard Disk Drive, CD/DVD ROM, RAM capacity, Processor) and the keyboard. And responsible in mounted or loading up the operating system’s startup file through the first boot of the BIOS. And if there are failure of the main hardware or such the HDD it will halt on then it will display on the POST information (Display).
  3. LOAD PROGRAM DISK- Once the POST is successful, the computer will load the Operating System (OS) and initialize all the peripherals and device driver connected to the CPU. In this operation there are tendencies the computer will create a serious error such as BSOD (Blue Screen Of Death). This error commonly causes by the processor overheat or the failure of the OS startup files during bootup. Or cause by a virus loaded in the OS startup files. When this occurs, your computer subject for repair.
  4. USE PROGRAM COMMANDS- When the POST is successful and the OS is normal you can press F8 during bootup of the OS. It will bring you to the Advance Menu of the computer OS. And you can select either Run in command mode, so that you can use the MS-DOS (Microsoft Disk Operating System) and either you can run the recovery files or run the diagnostic and repair command of the computer. This you need a knowledge in using the DOS command line on the computer both internal and external command.
  5. KEYBOARD AND VIDEO MONITOR SCREEN- Running the computer both windows environment and MS-DOS you should have enough knowledge using the 5 major functions of the keyboard. Because the keyboard use to enter commands in the computer and the CPU will response on the monitor screen. The 5 major function of the keyboard are:
      • Function keys
      • Alphanumeric Character
      • Special Keys
      • Cursor Keys
      • Numeric keypad
    • Composition of the Alphanumeric Character
      • Letters
      • Numbers
      • Punctuations
      • Symbols
      • Special Keys
  6. GET/SAVE FILES- This operation of the computer used to retrieve and save files on the disk both the target and source procedure. This involve with the HDD, USB flash drive. That you can use it to retrieve large amount files or not. You can save or retrieve the files on a compact disk or DVD because the memory on this are read only. Either you can use a software, example NERO so that you can write it in the compact disk or DVD.
  7. PRINTOUTS-  This is to provide a hard copy of the document, using your printer either a DOT metrics or a colored printer.
  8. SHUTDOWN OR TURN OFF PC- When your computer is unattended or not use, just shut down or turn off the PC. Don’t forget to turn off the monitor screen and other peripherals and also turn off the AVR. If you are using UPS turn it off to prolong the lifespan of the battery backup inside of your UPS.


  • Just enumerate and learn the parts of the keyboard, such as the shortcuts of the command and using the special keys. The keyboard is one of the most important device. “End”

Basic Operation of Computer and its General Functions combinebasic 5 of 5
Computer design with the composition of hardware and software, therefore we need to understand the basic operations how the computer work...
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About combinebasic

I'm a husband, a blogger and Biomedical Machines Specialist, also a computer instructor and technician and a crazy writer, I like to write and build blogs and avid fan of social media. I have built this blog just to help others through information. Follow us on Facebook and Twitter.

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