This course is about the basics of electrical and electronic components related to the hardware and networking system. It teaches to assemble and repair desktop PC with all its internal components, along with making the learner to be able to install different types of operating system and all other application software, customization of OS, updating device driver, setting firewall security, junk file removal, data backup and data recovery techniques. Assembling and repairing Laptop PCs and its internal hardware components is also a part of this course.