Types of Memories - Learn with Vinod

Types of Memories  -  Learn with Vinod

Memories are the main part of a Computer System to store the any type of data, whether these are photos, videos or a program or application. Memories are essential devices of computer system.

Types of Memories

Now let's get started with Types of Memories. There are two types of Memories. These are - 

1. Primary Memories: Primary Memories are the main memories that are required to use computer like, RAM, ROM, Cache Memory Etc. RAM Stands for Random Access Memory while ROM Stands for Read Only Memory. RAM is Volatile Memory, RAM is temporary Memory, RAM can store data only if it is powered on. There are two types of RAM with respect to its manufacturing technique. These are Static RAM and Dynamic RAM. while ROM is non-volatile memory. It is permanent memory, It can store data even if the electricity is off. There are 4 types of ROM which are described as follow:

PROM: (Programmable Read Only Memory) - It can be programmed by user but only once.

EPROM: (Erasable Programmable Read Only Memory) - It can be erased and programmed. To erase data from it Expose this memory to Ultraviolet rays.

EEPROM: (Electrically Erasable Programmable Read Only Memory) - It is same as EPROM. But the difference is it can be erased Electrically.

MROM: (Masked ROM) - It can be masked off at the time of production.

2. Secondary Memory: These memories are portable can be connected to any system like HDD (Hard Disk Drive), CD (Compact Disk), Flash Drive etc. Secondary Memories are Non-volatile in nature. These are Permanent storage devices. These memories are slower that Primary Memories and Cheaper than Primary Memories. Examples: HDD, SDD, NVMe2, Flash Memory, CD, DVD, UFS etc.