The work of the booting process is to start the computer. It takes time to appear as there are startup instructions stored in ROM which are required to start the computer during the booting process. is also an example of ROM.įor example, when you start your computer, the screen does not appear instantly. The data which is stored permanently on personal computers and other electronic devices like smartphones, tablets, TV, AC, etc. So, ROM is a Programmable Logic Device (PLD).Ī simple example of ROM is the cartridge used in video game consoles that allows the system to run many games. The information is added to a RAM in the form of bits by a process known as programming the ROM as bits are stored in the hardware configuration of the device. So, it is a non-volatile memory as it holds the information even when the power is turned off, or you shut down your computer. Once the pattern (information) is established, it stays within the unit even when the power is turned off. The binary information stored in the chip is specified by the designer and then embedded in the unit at the time of manufacturing to form the required interconnection pattern (information). ROM contains special internal electronic fuses that can be programmed for a specific interconnection pattern (information). However, there are some types of ROM where you can modify the data. After this, the content of the ROM can't be altered, which means you can't reprogram, rewrite, or erase its content later. The manufacturer of ROM fills the programs into the ROM at the time of manufacturing the ROM.
It is restricted to reading words that are permanently stored within the unit. It is called read only memory as we can only read the programs and data stored on it but cannot write on it.
It is also the primary memory unit of a computer along with the random access memory (RAM). ROM, which stands for read only memory, is a memory device or storage medium that stores information permanently.
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