Which is a non-volatile memory ?

Which is a non-volatile memory ?

A. ROM
B. RAM
C. BIOS
D. None of Above

Examples of non-volatile memory include read-only memory (see ROM), flash memory, most types of magnetic computer storage devices (e.g. hard disks, floppy discs and magnetic tape), optical discs, and early computer storage methods such as paper tape and punched cards.

Which is a volatile memory ?

Which is a volatile memory ?

A. ROM
B. RAM
C. BIOS
D. PROM

Volatile memory is computer memory that requires power to maintain the stored information. Most modern semiconductor volatile memory is either Static RAM (see SRAM) or dynamic RAM (see DRAM). SRAM retains its contents as long as the power is connected and is easy to interface to but uses six transistors per bit.