Computer Hardware and GSM Repairs - SS 1 Class
First Term Materials
Lesson 1 --
INSTRODUCTION TO COMPUTER HARDWARE AND GSM REPAIRS
WHAT IS COMPUTER HARDWARE AND GSM REPAIRS? Computer Hardware and GSM Repairs is a trade and technical subject that teaches students how computers and mobile phones (GSM handsets) are built, how their parts function, and how to identify and fix common faults in these devices... Click here for the complete note
Lesson 2 --
Classification of Computer Hardware
WHAT IS COMPUTER HARDWARE? Computer hardware refers to all the physical components of a computer system — the parts you can see and touch. This is different from software, which consists of the instructions and programs that tell the hardware what to do. A keyboard is hardware; a word-processing program like Microsoft Word is software. A printer is hardware; the driver program that controls it is software... Click here for the complete note
Peripheral Devices
WHAT EXACTLY ARE PERIPHERAL DEVICES? Peripheral devices attach to a computer through cables such as USB, HDMI, or Bluetooth and wireless connections, and they extend what the computer can do. Without them, a computer would just be a box that processes numbers with no way of showing the outcome to a human being or accepting instructions beyond a keyboard... Click here for the complete note
Lesson 4 --
Internal Components of a Computer
THE MOTHERBOARD: THE FOUNDATION OF THE SYSTEM
The motherboard, sometimes called the mainboard or system board, is a flat, rectangular circuit board that connects and allows communication between all the other components inside the computer. It is usually green, black, or brown, and covered with wires (called circuits or traces), slots, and connectors... Click here for the complete note
WHAT IS ELECTROSTATIC DISCHGE? UNDERSTANDING THE BASICS: Every object is made up of atoms, and atoms contain electrically charged particles. Under normal conditions, these charges are balanced. However, when two materials rub against each other — your shoes against a floor, a shirt against a plastic chair, or a sheet of paper sliding across a table — electrons can transfer from one surface to another. This leaves one surface with extra electrons (negatively charged) and the other with too few (positively charged). This buildup of imbalance is called static electricity. It stays on the surface, sometimes for a long time, until it finds a path to escape. When that imbalance suddenly equalizes — often by jumping from your finger to a metal object — the quick transfer of charge is what we call electrostatic discharge... Click here for the complete note