Basic Contribution Qualifications. You can make contributions to your IRA until you turn 70 1/2, as long as you receive earned income at some point during the year.
A battery backup, or uninterruptible power supply (UPS), is primarily used to provide a backup power source to important desktop computer hardwar e components.In most cases, those pieces of hardware include the main computer housing and the monitor.mportant Battery Backup Facts. In addition to acting as a backup when the power goes out, most battery backup devices also act as power conditioners by ensuring that the electricity flowing to your computer and accessories is free from drops or surges.
power supply unit. A system that converts AC current from the wall outlet into the DC currents required by electronic circuits. A computer power supply converts AC into multiple DC voltages. For example, 12 volts is commonly used for drives, while 3.3v and 5v are used by the chips and other motherboard components. Switching Power Supplies. Power supplies known as switching power supplies are commonly used.