what is primary and secondary storage (basic)
Answers
Explanation:
Primary storage is refers to the main storage of the computer or main memory which is random access memory or RAM. Secondary storage on the other hand , refers to the external storage devices used to store data on a long term basis.
Data storage is a common term for archiving data or information in a storage medium for use by a computer. It’s one of the basic yet fundamental functions performed by a computer. It’s like a hierarchy of comprehensive storage solution for fast access to computer resources. A computer stores data or information using several methods, which leads to different levels of data storage. Primary storage is the most common form of data storage which typically refers to the random access memory (RAM). It refers to the main storage of the computer because it holds data and applications that are currently in use by the computer. Then, there is secondary storage which refers to the external storage devices and other external media such as hard drive and optical media.
What is Primary Storage?
Primary storage is commonly referred to as simply “primary memory” which is volatile in nature such as the RAM which is a primary memory and tends to lose data as soon as the computer reboots or loses power. It holds data or information that can be directly accessed by the central processing unit. RAM is stored in integrated circuits for immediate access with minimum or no delay. It’s a high-speed data storage medium which is directly connected to the processing unit via the memory bus, allowing active programs to interact with the processor. Simple speaking, primary storage refers to internal storage devices that provide fast and efficient access to data or information. However, it stores data or applications for a short period of time while the computer is running.
Other examples of primary storage include Read Only Memory (short for ROM), which represents both the primary memory of the computer and a non-volatile storage because it’s able to retain data and applications even if the device loses power; PROM (Programmable read-only memory) which is kind of a memory chip that is programmed after the memory is constructed. PROM is a sophisticated version of ROM that can be programmed once after it has been created; and Cache memory which is also a common example of primary storage that is directly integrated with the CPU chip to provide high-speed data access for future requests. It’s more of a volatile memory of the computer that is placed between the CPU and the main memory.
What is Secondary Storage?
Secondary storage is yet another ideal storage solution in the computer’s memory hierarchy that is used to store data or information on the long term basis, more like permanently. Unlike primary storage, they are non-volatile memory or commonly referred to as external memory that are not directly accessed by the central processing unit. They are also called as auxiliary storage which can be both internal and external, plus beyond the primary storage. Because they are not directly accessed by the I/O channels, they are relatively slower than primary storage devices when it comes to data access. However, it’s one of the most valuable assets of data storage hierarchy that is capable of storing applications and programs permanently. Unlike RAM, it’s a long-term storage solution that expands the data storage capability.Common example of secondary storage includes hard disk drives (HDD) which is the most common data storage device used to store and retrieve digital information. It’s a high-capacity secondary storage device which also comes in internal storage mediums as internal hard drives. It’s one of the most versatile mediums of data storage that uses magnetic storage to archive applications or data permanently. Other examples of secondary storage include optical media such as CDs and DVDs which are capable of storing any substantial amount of data; magnetic tapes which are conventional methods of data storage used across corporate environments. However, secondary storage devices are quite slower than their primary counterparts, which make them relatively cheaper but equally efficient.
Difference between Primary Storage and Secondary Storage
• Categorized under Hardware, Technology | Difference between Primary Storage and Secondary Storage
Data storage is a common term for archiving data or information in a storage medium for use by a computer. It’s one of the basic yet fundamental functions performed by a computer. It’s like a hierarchy of comprehensive storage solution for fast access to computer resources. A computer stores data or information using several methods, which leads to different levels of data storage. Primary storage is the most common form of data storage which typically refers to the random access memory (RAM). It refers to the main storage of the computer because it holds data and applications that are currently in use by the computer. Then, there is secondary storage which refers to the external storage devices and other external media such as hard drive and optical media.