learn new things

That's good! PC owner should better have at least basic knowledge on computer troubleshooting for their own good not always ask help for technician specially those on budget and cant afford to bring it to shop for repair. But can i ask what specific you want to learn,just computer basics or computer programming?

Go ahead. Whats stopping you? What exactly do you wanna know? The hardware or the software? If you are interested in computer programming you should read http://www.bukisa.com/articles/296969_how-to-become-a-computer-programmer If you are interested in computer hardware, you have to start from digital logic, boolean and then computer organization, microprocessors etc. If you entirely devote yourself to programming, you don't have to be an expert in hardware, though some basic knowledge would be appreciated. Thanks. God bless you