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Read-only memory (ROM) is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM cannot be electronically modified after the manufacture of the memory device. Read-only memory is useful for storing software that is rarely changed during the life of the system, also known as firmware.
OTP (one time programmable) memory is a special type of non-volatile memory (NVM) that permits data to be written to memory only once. Once the memory has been programmed, it retains its value upon loss of power (i.e., is non-volatile). OTP memory is used in applications where reliable and repeatable reading of data is required.
EEPROM or E 2 PROM (electrically erasable programmable read-only memory) is a type of non-volatile memory. It is used in computers, usually integrated in microcontrollers such as smart cards and remote keyless systems, or as a separate chip device, to store relatively small amounts of data by allowing individual bytes to be erased and reprogrammed.
In computer technology, read-only can refer to: Read-only memory (ROM), a type of storage media; Read-only access to memory using memory protection; Read-only access to files or directories in file system permissions; Read-only access for database administrators in database system permissions
Transformer read-only storage (TROS) was a type of read-only memory (ROM) used between the mid-1940s to the late 1960s, prior to the common use of semiconductor ROM. TROS consisted of wires fed through and around transformer cores. The wires would register binary digits (1s and 0s) through inductance and separate wires sensing the change in ...
Read-only memory, a type of storage media that is used in computers and other electronic devices ROM cartridge, a portable form of read-only memory; ROM image, a computer file which contains a copy of the data from a read-only memory chip; ROM (MUD), a popular MUD codebase; Request Of Maintainer, a request by the maintainer of a software package
A CD-ROM (/ ˌ s iː d iː ˈ r ɒ m /, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data computers can read, but not write or erase.
System memory is one of the mapping options, another would typically be main firmware in flash. In this case, firmware is supposed to do all the jobs boot ROMs do; part of the firmware could act as a bootloader similar to ST's boot ROM. Hardware could provide read-only enforcement on the boot area, turning it into a user-provided version of ...