We use many electrical and electronic appliances in these days. They include, Personal Computers, Television Sets, Air Conditioners,
Cell Chargers, DVD players, Micro Wave ovens etc etc. Appliances like electrical geysers too need to be mentioned.
The problem is not with the power these appliances consume when they are being used. The real problem is that we generally fail to switch off the power supply to these units when we are not using them. They consume considerable power even when not in use unless we switch off the supply to them.
Television sets, while we sleep have no business to consume power but since we switch them off with remote they go into standby mode and continue to draw some amount of power by keeping the picture tube in pre heated condition, ready for your instructions.
Like wise, computer systems too need to be shut down while not in use to save power. The monitors of PCs too need to be switched off. According to some estimates, UK alone loses more than US 200 million dollars annually due to not switching off their Personal Computers when not in use.