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Shared memory. In computer science, shared memory is memory that may be simultaneously accessed by multiple programs with an intent to provide communication among them or avoid redundant copies. Shared memory is an efficient means of passing data between programs. Depending on context, programs may run on a single processor or on multiple ...
Symmetric multiprocessing or shared-memory multiprocessing[ 1] ( SMP) involves a multiprocessor computer hardware and software architecture where two or more identical processors are connected to a single, shared main memory, have full access to all input and output devices, and are controlled by a single operating system instance that treats ...
Copy-on-write (COW), sometimes referred to as implicit sharing [1] or shadowing, [2] is a resource-management technique used in computer programming to efficiently implement a "duplicate" or "copy" operation on modifiable resources [3] (most commonly memory pages, storage sectors, files, and data structures).
In computer science, distributed shared memory (DSM) is a form of memory architecture where physically separated memories can be addressed as a single shared address space. The term "shared" does not mean that there is a single centralized memory, but that the address space is shared—i.e., the same physical address on two processors refers to ...
Computer memory and computer data storage types. A programmable read-only memory ( PROM) is a form of digital memory where the contents can be changed once after manufacture of the device. The data is then permanent and cannot be changed. It is one type of read-only memory (ROM). PROMs are used in digital electronic devices to store permanent ...
Collective memory has been conceptualized in several ways and proposed to have certain attributes. For instance, collective memory can refer to a shared body of knowledge (e.g., memory of a nation's past leaders or presidents); [6] [7] [8] the image, narrative, values and ideas of a social group; or the continuous process by which collective memories of events change.
As the hidden object genre becomes more prominent on Facebook, we find developers attempting to distance themselves from the "big boys" like Hidden Chronicles (see, for instance, the uniquely ...
mmap. In computing, mmap(2) is a POSIX -compliant Unix system call that maps files or devices into memory. It is a method of memory-mapped file I/O. It implements demand paging because file contents are not immediately read from disk and initially use no physical RAM at all. The actual reads from disk are performed after a specific location is ...