A function key is a key on a computer or terminal keyboard which can be programmed so as to cause an operating system command interpreter or application program to perform certain actions, a form of soft key. On some keyboards/computers, function keys may have default actions, accessible on power-on.
Surge definition, a strong, wavelike, forward movement, rush, or sweep: the onward surge of an angry mob. See more.
Whole House Surge Protection â Frequently Asked Questions 1. What is a Power Surge and how are they caused? A surge (transient over-voltage) is a momentary sharp burst of high voltage. Surges can enter the home through the electrical distribution lines as well as through the telephone line and cable TV line. Lightning is not the only cause of