Two PC repair technicians are discussing the electrical system of a PC. Technician A says that the
power supply provides electricity to all the devices in a PC. Technician B says that the power supply
supplies 3.3, 5, and 12 volts of AC power. Which technician is correct
http://www.jiskha.com/display.cgi?id=1348019925
9. Two PC repair technicians are discussing the electrical system of a PC. Technician A says that the
power supply provides electricity to all the devices in a PC. Technician B says that the power supply
supplies 3.3, 5, and 12 volts of AC power. Which technician is correct?
A. Neither
B. Only Technician A
C. Only Technician B
D. Both
To determine which technician is correct, we need to understand the function of a power supply in a PC.
The power supply unit (PSU) in a PC is responsible for converting the incoming electrical power from your wall outlet into the proper voltage and current required by the components of your computer. It provides direct current (DC) power to the various devices within the PC.
Now let's evaluate the statements made by the technicians:
Technician A states that the power supply provides electricity to all the devices in a PC. This statement is correct. The power supply is responsible for distributing power to all the components, including the motherboard, CPU, RAM, hard drives, graphics card, and other peripherals.
Technician B says that the power supply supplies 3.3, 5, and 12 volts of AC power. This statement is incorrect. The power supply does not supply alternating current (AC) power, but instead converts AC power from the wall outlet into DC power. The power supply provides different voltages of DC power, including 3.3 volts, 5 volts, and 12 volts, which are used by different components within the PC.
In summary, Technician A is correct in stating that the power supply provides electricity to all the devices in a PC. Technician B is incorrect in stating that the power supply supplies 3.3, 5, and 12 volts of AC power.