This book presents a detailed discussion on PC hardware and its components. Primary memory and secondary storage are described with suitable figures. Arm processors concepts are explained in simple language. Study of various bus standards & ports, power types are included. Drive systems basic functioning interfacing are discussed in a manner that layman can understand easily. In addition troubleshooting and General PC problems are discussed in easy to understand method. Table of Contents: br>Module: H1 br>Chapter 1: PC hardware br>Chapter 2: primary memory br>Chapter 3: Secondary storage br>Chapter 4: Power supply br>Chapter 5: cabinet types br>Module: H2 br>Chapter 6: Introduction to microprocessor br>Chapter 7: arm processor br>Chapter 8: troubleshooting & General PC problems.