19. What is the critical component of a computer system that converts electrical power from an outlet into usable power for the internal components of the computer? a) Hard Drive b) Power Supply Unit (PSU) c) Central Processing Unit (CPU) d) Graphics Card Bos birak

The correct answer is b) Power Supply Unit (PSU). The power supply unit is the critical component of a computer system that converts electrical power from an outlet into usable power for the internal components of the computer. It ensures that the computer receives the appropriate voltage and current required for its operation.