Address Spaces

Some articles on address, address space, address spaces, space:

Burroughs Large Systems Descriptors - Integration in Memory Architecture
... The address field in the B5000 was only 20 bits, which meant that only 1 Meg words (6MB) of memory could be addressed by descriptors ... This architecture became known as ASN (Address Space Number) memory ... into two areas, allocating low memory addresses to a Global address space for the operating system and support software and high memory addresses to ...
IBM System/370 - Evolution - 1980s
... memory (central storage) – both physical memory and virtual address space – to support larger workloads and meet client demands for more storage ... imposed a 24-bit limit for any individual address space) ... processors, provided a number of major enhancements, including expansion of the address space from 24-bits to 31-bits facilitating movement of data between two address spaces and a complete redesign of the I/O ...
Kernel (computing) - Kernel Design Decisions - Issues of Kernel Support For Protection - Hardware-based Protection or Language-based Protection
... lack support for capabilities, processes are isolated from each other by using separate address spaces ... of this approach include No need for separate address spaces ... Switching between address spaces is a slow operation that causes a great deal of overhead, and a lot of optimization work is currently performed in order to prevent unnecessary ...
Hybrid Kernel - Examples - NT Kernel - Description
... (IPC) to communicate between modules, and hence for the potential location of modules in different address spaces (for example in either kernel space or server processes) ... services, including the entire Executive, run in kernel mode (in the same address space as the microkernel itself), rather than in user-mode server processes, as would be the case ... direct procedure calls in a single memory space, rather than IPC, for communication amongst subsystems ...

Famous quotes containing the words spaces and/or address:

    Though there were numerous vessels at this great distance in the horizon on every side, yet the vast spaces between them, like the spaces between the stars,—far as they were distant from us, so were they from one another,—nay, some were twice as far from each other as from us,—impressed us with a sense of the immensity of the ocean, the “unfruitful ocean,” as it has been called, and we could see what proportion man and his works bear to the globe.
    Henry David Thoreau (1817–1862)

    Another success is the post-office, with its educating energy augmented by cheapness and guarded by a certain religious sentiment in mankind; so that the power of a wafer or a drop of wax or gluten to guard a letter, as it flies over sea over land and comes to its address as if a battalion of artillery brought it, I look upon as a fine meter of civilization.
    Ralph Waldo Emerson (1803–1882)