CPU storage refers to the different types of memory used to save data in a computer. Primary and secondary memory are internal, while tertiary is external. Volatile memory needs power, non-volatile does not. CPU storage can also refer to furniture used to store computers.
There are many different types of CPU storage, and which type is usually referred to depends on the context in which the term is being used. Inside a computer, the central processing unit (CPU) acts as part of the computer’s brain by processing data, but other types of storage are needed to actually save that data for use by complex software programs or for long-term memory. This type of CPU storage typically falls into primary, secondary, or tertiary storage types and can be either internal memory inside the computer or external memory outside the computer. The term “CPU” is often used to refer to the entire computer itself, and CPU storage can also refer to desks and other types of furniture used to house or store a computer.
When used in reference to computer memory, there are three basic types of CPU memory: primary, secondary, and tertiary memory. Primary storage is usually the memory inside the computer used directly by the CPU and commonly consists of random access memory (RAM) used by the computer to save short-term data when programs are running. Secondary storage refers to memory that is accessed indirectly by the CPU and is usually managed through a basic input/output system (BIOS) or the operating system (OS) on a computer. This type of memory usually consists of hard disks or media such as compact discs (CDs) or digital versatile disks (DVDs) read-only memory (ROMs).
Both primary and secondary CPU memory are usually internal memory, although secondary memory can often take the form of an external hard drive. Tertiary storage is usually external and typically consists of a system in which large memory storage devices are systematically chosen and then physically loaded into a computer system. This is often done through the use of a robotic arm or similar device. The external CPU storage is made available for use, then physically removed again and archived back into a large library.
Among these three types of CPU storage there are also two different forms of basic storage: volatile and non-volatile storage. Volatile memory requires energy to maintain the information stored on it and is typically used for primary storage. Non-volatile memory does not require power to maintain the data stored on it and is used for secondary and tertiary storage systems.
Because the term “CPU” has been extended to mean the computer itself, CPU storage can also mean furniture and similar types of physical storage for a computer. For a desktop computer, this type of storage usually takes the form of a cabinet that the computer tower can fit into, or a small shelf that the case sits on. Laptop computers often use storage that takes advantage of their more portable nature and can include carrying bags and briefcases.
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