A computer is a programmable machine that receives inputs, stores, manipulates data and provides output in a useful format. They allow businesses to store large amounts of information available in databases. They also make ordering and tracking resources faster and easier, among other crucial benefits. Computers are important today because consumers can use them for research, education, and business purposes. People can also stay in touch with each other all over the world through the computer. Computer is very crucial for human life. However, the lifespan of a computer depends on how well it is maintained. Is your computer filling up with old files or slowing down, cluttered with applications? Most people don't realize it, but your computer needs maintenance, just like a car. If you don't clean up your files and keep your programs up to date, your system can become slow and unresponsive, and is more prone to crashes. If you don't clean your computer regularly, dust will start to build up on the interior hardware. Not only can this cause serious damage to your hard drive, motherboard, and disk drives, but it can also lead to overheating, reducing the performance of your RAM. When your computer overheats, it not only causes frustrating reboots but also leads to permanent hardware damage. This can significantly shorten the lifespan of your hard drive, potentially leading to significant data loss. Additionally, if you don't clean your computer, the dust that accumulates on your interior fans; this can lead to costly replacements. Health-wise, cleaning your computer can help reduce the transmission of disease from your bare hands. Much recent research has shown that computer surfaces such as the keyboard, mouse, and middle of paper ......t. Always unplug the electrical component from the electrical source. When you use a computer, there is a risk of static electricity hitting you causing damage to an electronic component inside the computer or cleaning accessories connected to the computer while they are still plugged into the computer , such as a keyboard, mouse or monitor. Before touching anything inside the computer case, touch the metal frame to discharge any static electricity you may have. You must wear safety glasses when using canned air. Be sure to read this guide before trying to clean your computer. If after reading the guide you feel that you are comfortable with the steps followed to clean the computer, start cleaning! The tasks described in this manual will take up a large portion of your time, so do not rush through the steps as you may damage your computer. Take your time and have fun!