Wat (wie) is auxiliary storage - definitie

STORAGE OF DIGITAL DATA READABLE BY COMPUTERS

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auxiliary storage

<storage> An obsolete term for a hard disk drive. (1997-04-14)

main memory

<storage, architecture> The storage device used by a computer to hold the currently executing program and its working data. A modern computer's main memory is built from random-access memory integrated circuits. In the old days ferrite core memory was one popular form of main memory, leading to the use of the term "core" for main memory. Computers have several other sorts of memory, distinguished by their access time, storage capicity, cost, and the typical lifetime or rate of change of the data they hold. Registers in the CPU are fast, few, expensive and typically change every few machine instructions. Other kinds are cache, PROM, magnetic disk (which may be used for {virtual memory}) and magnetic tape. (1996-11-04)

secondary storage

<storage> Any non-volatile storage medium that is not directly accessible to the processor. Memory directly accessible to the processor includes main memory, cache and the CPU registers. Secondary storage includes {hard drives}, magnetic tape, CD-ROM, DVD drives, {floppy disks}, punch cards and paper tape. Secondary storage devices are usually accessed via some kind of controller. This contains registers that can be directly accessed by the CPU like main memory ("memory mapped"). Reading and writing these registers can cause the device to perform actions like reading a block of data off a disk or rewinding a tape. See also DMA. Programs and data stored in secondary storage must first be loaded into main memory before the processor can use them. (1997-11-05)

Wikipedia

Computer data storage

Computer data storage is a technology consisting of computer components and recording media that are used to retain digital data. It is a core function and fundamental component of computers.^: 15–16

The central processing unit (CPU) of a computer is what manipulates data by performing computations. In practice, almost all computers use a storage hierarchy,^{: 468–473} which puts fast but expensive and small storage options close to the CPU and slower but less expensive and larger options further away. Generally, the fast technologies are referred to as "memory", while slower persistent technologies are referred to as "storage".

Even the first computer designs, Charles Babbage's Analytical Engine and Percy Ludgate's Analytical Machine, clearly distinguished between processing and memory (Babbage stored numbers as rotations of gears, while Ludgate stored numbers as displacements of rods in shuttles). This distinction was extended in the Von Neumann architecture, where the CPU consists of two main parts: The control unit and the arithmetic logic unit (ALU). The former controls the flow of data between the CPU and memory, while the latter performs arithmetic and logical operations on data.

https://en.wikipedia.org/wiki/Computer data storage