Property:Summary
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Text A summary of the page.
P
:Every process has some <b>metadata</b> holding information such as its priority, which is stored in an OS-created structure, typically called a “Process Control Block”. This may also be used to hold some context - such as register values - when the process is not running.
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B
A 'classic' hacker attack as an example of a security 'hole'. +
D
A 'classic' illustration of deadlocks. +
M
A 'simple' parallel processing model where several execution paths are followed simultaneously. This may use multiple processors or may be simulated on a single processor. In all cases there are potential problems as, sometimes, the <i>order</i> operations happen in can vary arbitrarily. +
L
M
A Memory Management Unit is the hardware which
facilitates memory management, alleviating software of the (enormous)
cost of checking every load or store for validity in software. +
T
A Translation Look-aside Buffer is a hardware-controlled cache of page translations. +
"
A Unix approach, attempting to make devices (etc.) all have much the same set of interfaces. +
S
A bit more about queuing strategies. +
C
A brief description of the way RAM is (often) made in a hierarchy, to improve average access speed. +
U
S
A computer <b>operator</b> with greater (software defined) access privileges than ordinary users. +
I
A computer communicates with outside world through input/output devices. This article gives an overview of the I/O system. +
C
A contemporary mechanism for implementing virtual machines. +
M
A fault whereby memory - a valuable resource - is claimed and then forgotten about, thus, typically, causing an application to request more and more of this resource. +
N
A file system can use different storage 'devices' including remote, networked machines. +
F
A filing system is a place to keep all the information the computer may want but is not in current use. It can involve a variety of both software and hardware technologies. +
D
A flag indicating that a cache has been modified and (temporarily) holds the definitive copy of some data. +
R
