Computer data storage, often called storage or memory, refers to computer components and recording media that retain digital data. Data storage is one of the core functions and fundamental components of computers. In contemporary usage, memory usually refers to semiconductor storage random-access memory, typically DRAM (Dynamic-RAM). Memory can refer to other forms of fast but temporary storage. Storage refers to storage devices and their media not directly accessible by the CPU, (secondary or tertiary storage) — typically hard disk drives, optical disc drives, and other devices slower than RAM but more permanent.[1] Historically, memory has been called main memory, real storage or internal memory while storage devices have been referred to as secondary storage, external memory or auxiliary/peripheral storage. The distinctions are fundamental to the architecture of computers. The distinctions also reflect an important and significant technical difference between memory and mass storage devices, which has been blurred by the historical usage of the term storage. Nevertheless, this article uses the traditional nomenclature. Many different forms of storage, based on various natural phenomena, have been invented. So far, no practical universal storage medium exists, and all forms of storage have some drawbacks. Therefore a computer system usually contains several kinds of storage, each with an individual purpose. Solution Computer data storage, often called storage or memory, refers to computer components and recording media that retain digital data. Data storage is one of the core functions and fundamental components of computers. In contemporary usage, memory usually refers to semiconductor storage random-access memory, typically DRAM (Dynamic-RAM). Memory can refer to other forms of fast but temporary storage. Storage refers to storage devices and their media not directly accessible by the CPU, (secondary or tertiary storage) — typically hard disk drives, optical disc drives, and other devices slower than RAM but more permanent.[1] Historically, memory has been called main memory, real storage or internal memory while storage devices have been referred to as secondary storage, external memory or auxiliary/peripheral storage. The distinctions are fundamental to the architecture of computers. The distinctions also reflect an important and significant technical difference between memory and mass storage devices, which has been blurred by the historical usage of the term storage. Nevertheless, this article uses the traditional nomenclature. Many different forms of storage, based on various natural phenomena, have been invented. So far, no practical universal storage medium exists, and all forms of storage have some drawbacks. Therefore a computer system usually contains several kinds of storage, each with an individual purpose..

1. Computer data storage, often called storage or memory, refers to computer
components and recording media that retain digital data. Data storage is one of the core functions
and fundamental components of computers. In contemporary usage, memory usually refers to
semiconductor storage random-access memory, typically DRAM (Dynamic-RAM). Memory can
refer to other forms of fast but temporary storage. Storage refers to storage devices and their
media not directly accessible by the CPU, (secondary or tertiary storage) — typically hard disk
drives, optical disc drives, and other devices slower than RAM but more permanent.[1]
Historically, memory has been called main memory, real storage or internal memory while
storage devices have been referred to as secondary storage, external memory or
auxiliary/peripheral storage. The distinctions are fundamental to the architecture of computers.
The distinctions also reflect an important and significant technical difference between memory
and mass storage devices, which has been blurred by the historical usage of the term storage.
Nevertheless, this article uses the traditional nomenclature. Many different forms of storage,
based on various natural phenomena, have been invented. So far, no practical universal storage
medium exists, and all forms of storage have some drawbacks. Therefore a computer system
usually contains several kinds of storage, each with an individual purpose.
Solution
Computer data storage, often called storage or memory, refers to computer
components and recording media that retain digital data. Data storage is one of the core functions
and fundamental components of computers. In contemporary usage, memory usually refers to
semiconductor storage random-access memory, typically DRAM (Dynamic-RAM). Memory can
refer to other forms of fast but temporary storage. Storage refers to storage devices and their
media not directly accessible by the CPU, (secondary or tertiary storage) — typically hard disk
drives, optical disc drives, and other devices slower than RAM but more permanent.[1]
Historically, memory has been called main memory, real storage or internal memory while
storage devices have been referred to as secondary storage, external memory or
auxiliary/peripheral storage. The distinctions are fundamental to the architecture of computers.
The distinctions also reflect an important and significant technical difference between memory
and mass storage devices, which has been blurred by the historical usage of the term storage.
Nevertheless, this article uses the traditional nomenclature. Many different forms of storage,
based on various natural phenomena, have been invented. So far, no practical universal storage
medium exists, and all forms of storage have some drawbacks. Therefore a computer system
usually contains several kinds of storage, each with an individual purpose.