What is the difference between RAM and ROM or RAM vs ROM is very important topic in computer from interview point of view? Computer is made up of many important parts. RAM and ROM are one of those important parts. RAM and ROM are a type of computer memory. Both of these play an important role in the computer. Or it can also be said that without them the computer cannot work.
Whenever we talk about computer or artificial intelligence machine, we often get to hear the name of RAM and ROM in it. Both RAM and ROM are types of memory that are organized inside the computer. The main job of both of them is to store data but the condition of storing memory in both is different. Today we all will know the difference between Ram and Rome. But what is Ram and Rome before us? How do this work? What is their work? Will know all this.
Table of Contents
What is RAM (Random Access Memory) in Computer? – RAM Vs ROM
The full form of RAM is Random Access Memory. RAM is also called direct access memory. There are two types of computers. Primary memory and secondary memory. RAM is a type of primary memory. RAM in the computer is used to store the data to be processed by the CPU. Through this memory, the CPU directly accesses the data stored in it. That’s why it is also called direct access memory. RAM is a type of volatile memory because the information stored in it is lost when the computer is switched off.
Usually the storage capacity of RAM can be more than 64MB to 16GB. Data stored in RAM can be arranged in any order. Because of this, the CPU can easily access the data stored in it. Due to easy access to the data of RAM, the apps or programs of our computer or phone work easily and quickly. In this way we can say that as much RAM capacity is there in a computer or phone. He works so fast. Both types of tasks are performed in RAM, reading and writing. That’s why RAM is also called read write memory.
Data is stored in the cells in RAM. Each cell is made up of rows and columns. Each has its own address. This unique address is called a cell path. The data stored in this is temporary, so it can also be called short time memory. You can store data inside it only as long as the computer is on. In this way it can keep the data only for a short time. RAM is part of the CPU’s motherboard.
What are the types of RAM?
RAM (Read only Memory) is divided into basically two types on the basis of texture.
Static Random Access Memory : SRAM
The full form of SRAM is Static Random Access Memory. The data stored under this memory is stored or saved till the power supply is turned on. It is a type of volatile memory. This is handled by the address decorder. The data in this memory is stored in the binary code (0,1) form. SRAM remains expensive compared to other RAM. This memory is used as cache memory in the computer.
Dynamic Random Access Memory : DRAM
The full form of DRAM is Dynamic Random Access Memory. DRAM is cheaper but slower in speed than SRAM. This memory is made up of a transistor and a capacitor. It saves the data as current. Because of this it requires more energy. There are five types of DRAM.
- ADRAM-asynchronous DRAM
- SDRAM-synchronous DRAM
- DDR SDRAM-double data rate DRAM
- RDRAM-Rhombus DRAM
- CDRAM-cache DRAM
What is ROM (Read Only Memory) in Computer? – RAM Vs ROM
The full form of ROM is Read Only Memory. If we think about RAM Vs ROM then ROM is also the primary memory.
Why rom is called read only memory? The data stored in ROM can only be read by the CPU, it cannot be rewritten. CPU accesses the data stored in ROM through RAM. ROM is a type of non volatile memory. Because of this, the data saved in ROM remains even when the computer is turned off. Instruction data is stored in ROM. For example, when we turn on the computer, booting takes place in it. The instructions given in that booting are stored in ROM. which is stored by the company. which can only be read.
Apart from this, some such data files are also stored in ROM, with the help of which all the input and output devices in the computer are connected and run. Data is stored permanently in ROM. The ROM used in the computer is called hard disk. Whereas the ROM used in mobile phones is called memory. Memory card, Pen drive, Hard disk are all examples of ROM.
What are the types of ROM?
ROM is divided into three parts.
Programmable Read Only Memory : PROM
The full form of PROM is Programmable Read Only Memory. It is blank, it is not made by programming. It is used to write data.
Erasable Programmable Read Only Memory : EPROM
EPROM is erasable programmable read only memory. Computer uses the EPROM for protection. EPROM protects the data from ultraviolet rays. It is prepared for reprogramming from ultraviolet rays. It is reprogrammed with the help of PROM.
Electricity Erasable Programmable Read Only Memory : EEPROM
The full form of EEPROM is Electricity Erasable Programmable Read Only Memory. EEPROM is reprogrammed with the help of electricity. It is a bit slow in speed.
Difference between RAM Vs ROM in tabular form
|RAM (Random Access Memory)||ROM (Read Only Memory)|
|Both read and write tasks are performed in RAM.||Only read tasks are performed in ROM.|
|Data is stored temporarily in RAM.||Data is stored permanently in ROM.|
|RAM is a volatile memory.||ROM is a non-volatile memory.|
|The full form of RAM is Random Access Memory.||The full form of ROM is Read Only Memory.|
|You can modify the data in RAM again and again.||Data cannot be modified in ROM.|
|The storage capacity of RAM can be from 64 MB to more than 16 GB.||The storage capacity of ROM is less than RAM.|
|RAM is a bit expensive.||ROM is cheaper than RAM.|
|RAM size is small.||ROM is bigger in size than RAM.|
|Power is needed to save data in RAM.||Power is not required to save data in ROM.|
|RAM storage speed is fast.||The process of storing data in ROM is long.|
|The speed of a computer or mobile depends on the RAM.||ROM is used as a storage device in a computer or mobile.|
|Motherboard cannot work without RAM..||It is not mandatory to have ROM in the motherboard. The motherboard can function without it as well.|
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