The difference between ram and hard disk memory It often seems confusing, with overlapping terminology, you may not seem to know the difference.  the ram does not allow the storage of personal data.


It reads and writes data and will continue to save memory unless the system turns off. The hard disk is a predictable memory that allows the user to store and delete data; Your ability to store in it depends on its size.




Read-Only Memory (ROM)

Read-only memory (ROM) is a kind of storage medium that permanently stores data on personal computers (PCs) and other electronic devices. It contains the programming necessary to start the computer, which is necessary for starting up; performs large I/O tasks and stores programs or software instructions.


Because the ROM is read-only, it can not be changed; it is durable and non-volatile, which means that it retains its memory even after disconnecting the power supply. Whereas the random access memory (RAM) is unstable; is lost when the power is removed.

difference between ram and hard disk memory
difference between ram and hard disk memory

There are many ROM on the motherboard and several on the expansion boards. Chips are necessary for the basic input/output system (BIOS), boot, read and write on peripherals, basic data management, and software for basic processes for specific tools.



difference between ram and hard disk memory




difference between ram and hard disk memory
difference between ram and hard disk memory


When it comes to memory capacity, the hard disk starts where the RAM memory ends; this means that the size of the hard disk is always larger than the size of the RAM. Currently, the size of RAM varies from 256 MB to 32 GB.


The currently available hard disk size is from 500 GB to 8 TB. The hard disk is more similar to a machine that has different parts, such as a write module and reader, while the RAM is a smaller (silicon) circuit composed of circuits.


RAM memory does not allow connecting external RAM if RAM is not available. The hard disk allows you to add an external hard disk to improve disk space. You can also completely change it and add more capacity.


Connecting an external drive, when the hard disk stores more and more data, provides increased storage capacity without losing files or data.


The size of the hard disk you want to connect to the system, however, depends on the power necessary to run the computer with an additional storage location, as well as on the physical surface it will use.




One of the primary goals of RAM is to speed up your computer’s performance; it means that your system will run slower when its RAM memory is small (limited). However, the primary purpose of the hard disk is to store information, and having a hard disk with a smaller capacity may not affect the speed of the system.



Each time a task is executed, the CPU sends and receives program instructions and data to and from RAM. User data will be transferred to the hard disk as part of these operations.



The memory used during the operation comes from RAM because RAM is much faster than the hard disk. RAM is faster and data is transferred from the hard disk to RAM to ensure that the processor only deals with the fastest data access.


Additional RAM