(Kimya) The generic term for a large variety of chemically different compounds, like for example, benzene, ethanol, formaldehyde, cyclohexane, 1,1,1-trichloroethane or acetone
Permanent; e g PROMs are said to be nonvolatile because they retain their information even after power has been turned off RAM, on the other hand, is volatile (all information is lost when power is removed)
Storage (hard disk, cd-rom, tape, floppy, etc ) that does not change when the power is turned off, unlike volatile storage that is erased when the power is off
The memory elements keep their contents when power is removed from the device The element may be one time programmable or "reprogrammable " Examples of the former include fuses and antifuses Examples of the latter include EPROM, and EEPROM storage elements Programmable devices can be both non-volatile and reprogrammable
Any device that retains its stored information after power is removed Examples: EPROMs, flash memory, rotating magnetic discs, optical memory Compare volatile memory
qualifies a memory which retrieves, when it is powered on, the state that it had when it was powered off; EPROM and FLASH memories, floppy and hard disks, and magnetic tapes, are examples of non-volatile memories
The characteristic of a device that does not lose its contents when its power is removed Nonvolatile memory is useful in microcomputer circuits because it can provide instructions for a CPU as soon as the power is applied, before secondary devices, such as disk, can be accessed Nonvolatile memory includes ROM, EPROM, and EEPROM