After mounting a computer, the next step is switching it on.

The entails of this post includes switching on and off of a computer and use of a keyboard and mouse as modes of input devices.  First let’s define a few terms that are commonly used. 

Booting; process of self test and preparation (POST) that a computer goes through before is ready for use. This is the order of events before POST, the power supply is powered then it powers the microprocessor which checks for BIOS (basic Input output software) and then it runs POST afterwards.

Cold booting; process which computer is originally off then is put on by pressing the power button on the system unit. 

Warm booting; is where the computer is originally on then is forced to restart by pressing restart button on the system unit or choosing the restart command from the start menu.

Shutting down a computer.

It is important that the user follow the correct procedure of shutting down the computer so as to avoid loss of data, damaging computer components and programs. 

To shut down a computer proceed as follows: 

  • Ensure that all work is saved Properly.
  • Close all programs that may be currently running.
  • Click the start button to display the start menu from which you click on shutdown. The computer will then logoff all active users then begin the shutting down processes however;
  • In case a message box appears select shutdown then click ok. 
  • Please View this video here for a detailed tutorial.

Other options include: 

Logoff – ends the session of the current user. One must log in (security measure that protect an authorised users from accessing computer resources) to continue the session.

Switch user– allows users to change from one user account to another. 

Sleep– make computer consume less power in idle mode but remain available for immediate use.

Hibernate–saves everything in memory on disk then shuts down the computer.


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