An EPROM, or erasable programmable read-only memory, is a type of computer memory chip that retains its data when its power supply is switched off. In other words, it is non-volatile. It is an array of floating gate transistors individually programmed by an electronic device that supplies higher voltages than those normally used in electronic […]

An EEPROM (also called an E2PROM) or Electrically-Erasable Programmable Read-Only Memory, is a non-volatile storage chip used in computers and other devices (such as USB flash drives, in its flash memory version).
Operation
The EEPROM operates in three phases: OP-Code Phase, Address Phase and Data Phase. Each EEPROM device has its own set of OP-Code instructions to […]

“CMOS” can also refer to nonvolatile memory on the motherboard of a personal computer; see Nonvolatile BIOS memory.
This article is about digital logic circuits. For the style guide, see The Chicago Manual of Style.
 
Static CMOS InverterCMOS (pronounced “see-moss”), which stands for complementary metal-oxide-semiconductor, is a major class of integrated circuits. CMOS chips include microprocessor, microcontroller, […]