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26 relations: Auxiliary memory, Binary file, Cache (computing), Computer data storage, Copy-on-write, Demand paging, Disk array controller, Disk buffer, Disk cache, Disk controller, File system permissions, Hard disk drive, Hard disk drive performance characteristics, Kernel (operating system), Mmap, Non-volatile random-access memory, Novell, Operating system, Page (computer memory), Page replacement algorithm, Paging, Process (computing), Random access, Virtual memory, Windows NT, Zero-byte file.
Auxiliary memory
Auxiliary memory, also known as auxiliary storage, secondary storage, secondary memory or external memory, is a non-volatile memory (does not lose stored data when the device is powered down) that is not directly accessible by the CPU, because it is not accessed via the input/output channels (it is an external device).
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Binary file
A binary file is a computer file that is not a text file.
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Cache (computing)
In computing, a cache, is a hardware or software component that stores data so future requests for that data can be served faster; the data stored in a cache might be the result of an earlier computation, or the duplicate of data stored elsewhere.
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Computer data storage
Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media that are used to retain digital data.
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Copy-on-write
Copy-on-write (CoW or COW), sometimes referred to as implicit sharing or shadowing, is a resource-management technique used in computer programming to efficiently implement a "duplicate" or "copy" operation on modifiable resources.
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Demand paging
In computer operating systems, demand paging (as opposed to anticipatory paging) is a method of virtual memory management.
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Disk array controller
A disk array controller is a device which manages the physical disk drives and presents them to the computer as logical units.
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Disk buffer
In computer storage, disk buffer (often ambiguously called disk cache or cache buffer) is the embedded memory in a hard disk drive (HDD) acting as a buffer between the rest of the computer and the physical hard disk platter that is used for storage.
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Disk cache
Disk cache may refer to.
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Disk controller
The disk controller is the controller circuit which enables the CPU to communicate with a hard disk, floppy disk or other kind of disk drive.
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File system permissions
Most file systems have methods to assign permissions or access rights to specific users and groups of users.
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Hard disk drive
A hard disk drive (HDD), hard disk, hard drive or fixed disk is an electromechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.
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Hard disk drive performance characteristics
Higher performance in hard disk drives comes from devices which have better performance characteristics.
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Kernel (operating system)
The kernel is a computer program that is the core of a computer's operating system, with complete control over everything in the system.
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Mmap
In computing, mmap(2) is a POSIX-compliant Unix system call that maps files or devices into memory.
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Non-volatile random-access memory
Non-volatile random-access memory (NVRAM) is random-access memory that retains its information when power is turned off.
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Novell
Novell, Inc. was a software and services company headquartered in Provo, Utah.
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Operating system
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
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Page (computer memory)
A page, memory page, or virtual page is a fixed-length contiguous block of virtual memory, described by a single entry in the page table.
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Page replacement algorithm
In a computer operating system that uses paging for virtual memory management, page replacement algorithms decide which memory pages to page out, sometimes called swap out, or write to disk, when a page of memory needs to be allocated.
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Paging
In computer operating systems, paging is a memory management scheme by which a computer stores and retrieves data from secondary storage for use in main memory.
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Process (computing)
In computing, a process is an instance of a computer program that is being executed.
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Random access
In computer science, random access (more precisely and more generally called direct access) is the ability to access any item of data from a population of addressable elements roughly as easily and efficiently as any other, no matter how many elements may be in the set.
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Virtual memory
In computing, virtual memory (also virtual storage) is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a very large (main) memory." The computer's operating system, using a combination of hardware and software, maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory.
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Windows NT
Windows NT is a family of operating systems produced by Microsoft, the first version of which was released in July 1993.
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Zero-byte file
A zero byte file or zero length file is a computer file containing no data; that is, it has a length or size of zero bytes.
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Redirects here:
Buffer cache, Disk page, Page Cache, Page caching, Pagecache.
References
[1] https://en.wikipedia.org/wiki/Page_cache
