ROM


Read-Only Memory (ROM):
ROM {means|is short for} read only memory. The instructions in ROM {put together|make} the computer for use. These instructions can only be read but {are not able to|are unable to|simply cannot} be changed or {erased|removed|wiped}. It is not possible to write new information or instructions {in to the|in the} RANGE OF MOTION.
ROM stores data and instructions permanently. If the power is switched off, the instructions stored in ROM {are certainly not|aren't|are generally not} lost. {Consequently|As a result|For that reason} ROM {is known as|is named|is referred to as} non-volatile {memory space|storage|recollection}.
The information in RANGE OF MOTION is stored by the manufacturer. When the computer is switched on, the instructions in the RANGE OF MOTION are automatically loaded into the memory of the computer. ROM contains {a tiny} set of instructions called ROM BIOS. BIOS stand for input/output system. {These types of|These kinds of} instructions tell the computer how to access {hard drive|hard disk drive}, find operating system and load in it {RAM MEMORY|MEMORY|GOOD OLD RAM}. Different types of RANGE OF MOTION are as follows:
 

Types of ROM:
Different types of ROM are as follows:
1. PROM:
PROMENADE stands for Programmable {Go through|Browse|Reading} Only Memory. This form of ROM is {in the beginning|primarily} blank. {The consumer|An individual|The person} or {producer|maker|company} can write data and programs {onto it|into it|upon it} using special devices. {The consumer|An individual|The person} can write data and instructions on it only once. {When there is|If you have} any error in writing the instructions, the {mistake|problem} {can not be|may not be} removed from PROMENADE. The chip becomes {useless|not used}.
2. EPROM:
EPROM {sticks|stages|is an abbreviation for} for Erasable Programmable {Go through|Browse|Reading} Only Memory. This type of ROM is {in the beginning|primarily} blank. The user or manufacturer can write data and programs on it using special devices. The data and programs written on it can be erased with special devices using ultraviolet rays. {The consumer|An individual|The person} then can write new program on it.
3. EEPROM:
EEPROM stands for Electronically Erasable Programmable {Go through|Browse|Reading} Only Memory. In this memory user can {remove|get rid of|clear off} and write instructions {with the aid of|by making use of} electrical pulses. {When there is|If you have} any error in writing the instructions, the user can erase the contents {digitally|in electronic format|in an electronic format}. The contents of EEPROM can be modified easily.

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