Difference Between Random Access Memory And Read Only Memory Pdf

difference between random access memory and read only memory pdf

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It is one of the most asked questions asked by computer students. It is asked in exams from classes 7th to higher education, in GK questions to Competitive exams. Still, most people are confused about it.

Every computer comes with a certain amount of physical memory which is actually chips that hold data. RAM is a part of hardware that stores operating system s application programs and currently running processes that can be accessed randomly, i. Data in RAM stays for only as long as the computer is running, and gets deleted as soon as computer is switched off. Computers are so designed that this RAM can be increased up to a certain capacity.


The information stored in this type of memory is lost when the power supply to the PC or laptop is switched off. It is generally known as the main memory, or temporary memory or cache memory or volatile memory of the computer system. In this RAM vs. What is ROM? It is a permanent type of memory. Its content are not lost when the power supply is switched off.

The computer manufacturer decides the information of ROM, and it is permanently stored at the time of manufacturing, which cannot be overwritten by the user. Characteristics of RAM Here, are some essential characteristics of RAM: the volatile memory RAM chips are widely used in the normal operations of a computer for starting and loading the operating system and applications.

However, it does need to be refreshed like DRAM. It stores instructions, but you can erase only by exposing the memory to ultraviolet light. This type of ROM is written or programmed using a particular device. It stores and deletes instructions on a special circuit. ROM stores all the application which is needed to boot the computer initially.

It only allows for reading. Volatility RAM is volatile. So, its contents are lost when the device is powered off. It is non-volatile, i. The processor can't directly access the information that is stored in the ROM. In order to access ROM information first, the information is transferred into the RAM, and then it can be executed by the processor. The ROM memory allows the user to read the information.

But, the user can't alter the information. Storage RAM is used to store temporary information. ROM memory is used to store permanent information, which is non-erasable.

Speed The access speed of RAM is faster. Its speed is slower in comparison with RAM. Therefore, ROM can't boost up the processor speed. Cost The price of RAM is quite high. The price of ROM is comparatively low. Preservation of Data Electricity is needed in RAM to flow and to preserve information Electricity is not required to flow and preserving information Structure The RAM chip is in rectangle form and is inserted over the motherboard of the computer.

Read-only memory ROM is a type of storage medium that permanently stores data on personal computers PCs and other electronic devices. Power-efficient: RAM uses much less power than disk drives.

Saves your system battery: It helps you to reduce carbon emissions and extend your battery life. Therefore, it is called non-volatile memory. What is Factor in R? Factor in R is a variable used to categorize and store the data, having a What is Jenkins? Jenkins is an open source Continuous Integration server capable of orchestrating a It is based on What are Decision Trees? Decision Trees are versatile Machine Learning algorithm that can perform The if else statement An if-else statement is a great tool for the developer trying to return an Professional programmers understand the benefits of having the best monitor for programming.

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Difference Between RAM and ROM Memory

A ROM chip is a non-volatile storage medium, which means it does not require a constant source of power to retain the information stored on it. By contrast, a RAM chip is volatile , which means it loses any information it is holding when the power is turned off. A ROM chip is used primarily in the startup process of a computer, whereas a RAM chip is used in the normal operations after the operating system is loaded. A RAM chip temporarily stores files in use on a computer, like a document you're writing, an image you're editing, or data for a game you're playing. Using a non-volatile storage medium is the only way to begin this process for computers and other devices. The oldest ROM-type storage medium can be dated back to with drum memory. ROM-type storage is still used today.

What is the difference between ROM and RAM?

While ROM is a non-volatile memory that retains data even when the power gets off. Another major difference between the two is that RAM allows both read and write data operation. As against ROM allows read operation only. It allows read and write operation of data by the user.

Read-only memory , or ROM , is a form of data storage in computers and other electronic devices that can not be easily altered or reprogrammed. RAM is referred to as volatile memory and is lost when the power is turned off whereas ROM in non-volatile and the contents are retained even after the power is switched off.


Он присел на корточки и в десяти метрах от себя увидел чей-то силуэт. - Мистер. Беккер узнал голос. Это девушка. Она стояла у второй входной двери, что была в некотором отдалении, прижимая сумку к груди. Она казалось напуганной еще сильнее, чем раньше. - Мистер, - сказала она дрожащим голосом, - я не говорила вам, как меня зовут.

Сзади его нагоняло такси. Он смотрел на приближающиеся огни центра города и молил Бога, чтобы он дал ему добраться туда живым. Беккер проехал уже половину пути, когда услышал сзади металлический скрежет, прижался к рулю и до отказа открыл дроссель. Раздался приглушенный звук выстрела. Мимо. Он резко свернул влево и запетлял по дороге в надежде сбить преследователя и выиграть время. Все было бесполезно.

Наверное, Меган, подумал. У нее оставалось целых пять часов до рейса, и она сказала, что попытается отмыть руку.


Alen R.


The information stored in this type of memory is lost when the power supply to the PC or laptop is switched off.

Eduarda M.


RAM, which stands for random access memory, and ROM, which stands for read-only memory, are both present in your computer.

Kaveen D.


The RAM family includes two important memory devices: static RAM (SRAM) and dynamic RAM (DRAM). The primary difference between them is the lifetime of the​.