ROM
ROM is read only Non-Volatile memory written data into it
while manufacturing. Data of Rom never get change in its entire life.
Example : BIOS,Firware,Console
PROM
PROM is Non-Volatime memory manufactured blank, a user
writes program into it. Ones data written in PROM it never get change. PROM is
permanent it retain its data when power goes off. you need a special device called a
PROM programmer or PROM burner for writing data. The process of programming a PROM is sometimes
called burning the PROM.
Example : mobile phones, Radio Frequency Identification
cards (RFIDs), High Definition Media Interfaces (HDMI), and video game
controllers
