Some do and some don't. You need to check the power supply's specifications. The input voltage and frequency range is normally stated on a label visible from the rear of the computer.
Many modern PC power supplies will accept a range of input voltage and frequency, or at least have a switch to chose between 110V/60Hz and 240V/50Hz.
A power supply that is designed to be outside the case of the computer. Most laptop computers use an external power supply rather than an internal one to reduce size and weight while the laptop runs on battery power.
The computer's power supply powers the computer or any other device. If you want more about power supplies take a look at the link provided below.http://en.wikipedia.org/wiki/Power_supply
If you are referring to a switched UK-style socket outlet fitted with a led, or a wall switch fitted with a led, then the led merely indicates that the socket outlet switch or wall switch is in the 'on' position.
look at the label on the power supply most work for 90 to 250 volts
If you have a 500 watt power supply and you want to put in a new video card. On the video card's box it will tell you how much power it needs. If it requires less power then you don't need to worry. If it says it requires more, you'll need a bigger power supply with large wattage otherwise you'll kill your computer.
It is to allow your computer to run without having to keep it charging right next to a socket all dayThe main purpose of a power supply is to distribute the right amount of power to all the components of a computer.
A PC Main Supply is what gives the computer power to operate, in desktop computers they have to constantly be connected to some type of power outlet. Diagram. Plug socket > Cable > PSU (power supply unit) > Motherboard > power to all components in the computer.
A laptop.
If you have a laptop, it should say on the underside either on the batter cover, or on the battery itself. For a desktop computer, it might say on a sticker above the power socket. If not, you'll need to open up your computer and have a look on the PSU (Power Supply Unit). This is located adjacent to the power socket.
A computer power supply takes the AC power coming from a wall socket, and then converts it into lower-voltage DC to power all the components inside. Almost every component of a computer will connect directly to the power supply, with the exception of smaller parts such as fans, which can pull power through the motherboard.
If it is a computer power supply it is the box that gives the computer its power from the outlet.
The thing that gets electricity into a computer is the plug socket, which travels through a kettle lead (a kettle lead connects transfers electricity from the plug socket to the computer) and then into the PSU (power supply unit), which powers the motherboard, which allows the computer to work.
The power supply in the computer is what provides power to all of the components inside the PC. It also has the role of powering up the computer. The power supply not only powers the motherboard, but everything else inside the computer, including the video card, peripheral cards, hard drives, etc.
the ups was invented by the great american christopher latthem
The "power supply" supplies power to a computer. A computer's power supply is a "switchmode power supply" responsible for converting the AC voltage from the wall into several DC output voltages.
Yes. If the power supply is of a low wattage and has too many pieces of hardware connected to it, it can. Try buying a power supply with a wattage over 300. One thing to check before replacing the power supply is the voltage selector in the back. If you use 120 volt power, then setting the power supply to 240 volts will cause the PC to only get half of the power it needs. External peripherals with their own power supply will not impact the power supply or current in the computer. Printers and monitors usually get their power from the wall socket, not the computer, and the same goes for external modems that plug into the wall. Keyboards and mice take negligible power.
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