What is the definition and difference between ram rom and cache memory?

Answer 1

ROM (read only memory): It is the part of memory in which the data or the software related to the hardware is stored which is not to be changed frequently..

Athought the EPROM and EEPROM available now in the market have the ability to be changed easily..

RAM (Random Access Memory): It is the part of memory in which the data can be accesed fast and at random and the continuous movement of the storage is not necessary. like CD and dvds.. it is fast but the volatile since the data stored in it is erased after the system is powered off.

Cache memory: It is the part of memory in which the data from different intermediate calculations or processes is stored where the original data is expensive to fetch...

Answer 2

Cache memory works on higher frequencies (and so is faster). And it's not more than couple MB. Cache memory saves the data the processor is currently working on.

ROM, on the other hand, stores data that rarely changes, since changing the data would involve replacing the ROM medium. Examples of ROM include the BIOS ROM chip on your motherboard, (though now you will likely see BIOS Flash chips instead) CD-ROM, and CD-R.

Answer 3

RAM, or random access memory is the temporary memory that the computer uses to perform its functions while being used.

ROM, or read only memory. In its pure form, ROM is the data that is permanently written to a chip, that there is no way of overwriting.

Answer 4

Read Only Memory (ROM):

Another important part of main memory is Read Only Memory (ROM). Instructions can only be read from ROM. Instructions once written on ROM chip cannot be changed. It is a permanent or non-volatile memory of a computer, i.e. the contents of this type of memory are not lost when the computer is turned off. As soon as the computer is turned on, a program that resides in ROM automatically makes the computer ready for use. ROM is a semiconductor memory generally programmed by the manufacturer.

Random access memory (RAM):

RAM is that part of main memory in which data and instructions are held temporarily. RAM provides a working area to the user to enter and process data. In RAM each data element has its own address (location). Any data element can be read easily and quickly by using that address. It is also called as Read-And-Write Memory (RAM) since the computer can store or write data at any selected location (address) and can retrieve or read data when needed. It is a temporary memory of a computer used to store data and instructions when the computer is on. Everything that is stored in RAM is lost when the computer is turned off. For this reason, it is also called volatile memory. Large RAM sizes provide larger data that a computer can hold and process. Additional RAM chips can be installed in a computer simply by plugging them on motherboard. This increases the storage capacity of RAM of a computer.

RAM is a semiconductor memory with no moving part. Data can be accessed from RAM at very high speed very close to the speed of light. A memory chip less than one-fourth the size of a postage stamp can store data more than 500,000 bytes equivalent to the printed matter on a popular daily newspaper.

By: Shoaib Bilal

email: m.shoaib335@Yahoo.com

Answer 5

Cache memory - is memory 'set aside' for a specific purpose. ROM - is a chip containing fixed instructions to 'kick-start' the computer. ROM retains the instructions when power is off - Cache memory does not.

Answer 6

Random Access Memory (RAM) is the volatile memory that is used when operating a computer. Once the computer is switched off, the RAM is cleared and any unsaved data is lost. Read Only Memory (ROM) is a chip on the motherboard in which the manufacturer has installed code that will boot up the computer when it is switched on. Basically, Cache Memory is where the computer saves or stores part or all of any websites or programmes the user has visited or uses frequently.

Answer 7

ROM is read only memory which means that no one can modify or access it.

RAM is random memory access which means it handles the applications & functioning.

Answer 8

ROM - is intended as read only - RAM is read/write

ROM retains its memory when the computer is switched off - RAM doesn't

Answer 9

They are all the same type of memory. All three of them are located internally. Rom can be upgraded. Ram cant be removed from the internal computer.

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