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Off-line storage is computer data storage on a medium or a device that is not under the control of a processing unit. [9] The medium is recorded, usually in a secondary or tertiary storage device, and then physically removed or disconnected. It must be inserted or connected by a human operator before a computer can access it again.
When the scratchpad is a hidden portion of the main memory then it is sometimes referred to as bump storage. In some systems [ a ] it can be considered similar to the L1 cache in that it is the next closest memory to the ALU after the processor registers , with explicit instructions to move data to and from main memory , often using DMA -based ...
An external hard drive is an excellent option for storing photos and videos to free up space on your new laptop. Another great way to save space is by storing your photos in cloud storage. Whether ...
Single-level storage (SLS) or single-level memory is a computer storage term which has had two meanings. The two meanings are related in that in both, pages of memory may be in primary storage ( RAM ) or in secondary storage (disk), and that the physical location of a page is unimportant to a process.
If needed, contents of the computer memory can be transferred to storage; a common way of doing this is through a memory management technique called virtual memory. Modern computer memory is implemented as semiconductor memory, [5] [6] where data is stored within memory cells built from MOS transistors and other components on an integrated ...
Many computer systems have a memory hierarchy consisting of processor registers, on-die SRAM caches, external caches, DRAM, paging systems and virtual memory or swap space on a hard drive. This entire pool of memory may be referred to as "RAM" by many developers, even though the various subsystems can have very different access times ...
Random Access Memory is memory storage that if found in electronic devices such as computers. It holds data while the computer is on so that it can be quickly accessed by the CPU or (Central Processing Unit). [3] Ram is different from regular storage units such as Hard Disks, Solid State Drives, and Solid State Hybrid Drives.
A process can store data in memory-mapped files on memory-backed file systems, such as the tmpfs file system or file systems on a RAM drive, and map files into and out of the address space as needed. A set of processes may still depend upon the enhanced security features page-based isolation may bring to a multitasking environment.