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Information Technology (IT) Security Policy
Information Technology (IT) Security Policy

... The use of computer systems and the exchange of information electronically have increased rapidly in the area of healthcare. Within the HSE there is a growing reliance on computer systems to aid treatment, expand communications, and improve management and control. This growing dependence comes at a ...
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...  File pointer: pointer to last read/write location, per process that has the file open  File-open count: counter of number of times a file is open – to allow removal of data from open-file table when last processes closes it  Disk location of the file: cache of data access information  Access ri ...
Module 4: Processes
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...  Processes must name each other explicitly:  send (P, message) – send a message to process P  receive(Q, message) – receive a message from process Q  Properties of communication link  Links are established automatically.  A link is associated with exactly one pair of communicating ...
Module 7: Process Synchronization
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... (모두 못 들어감  CS 밖에서 남을 못들어가게?) If no process is executing in its critical section and some processes wish to enter their critical section, then those outside C.S. competes to enter C.S. and ...
Microkernels Meet Recursive Virtual Machines
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... so they can support “naive” operating systems (see Figure 1). For example, the most well-known virtual machine system, VM/370 [28, 29], provides virtual memory and security between multiple concurrent virtual machines, all exporting the IBM S/370 hardware architecture. Furthermore, special virtualiz ...
IPS/IDS - SudeeraJ.com
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CS311 - NUS School of Computing
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... (SAs). An SA is similar to a kernel thread, but it also transfers control from the kernel to the ULTS on a kernel event as described below ...
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Security-focused operating system

This is a list of operating systems with a sharp security focus. Here, ""security-focused"" means that the project is devoted to increasing the security as a major goal. As such, something can be secure without being ""security-focused."" For example, almost all of the operating systems mentioned here are faced with security bug fixes in their lifetime; however, they all strive to consistently approach all generic security flaws inherent in their design with new ideas in an attempt to create a secure computing environment. Security-focused does not mean security-evaluated operating system, which refers to operating systems that have achieved certification from an external security-auditing organization. An operating system that provides sufficient support for multilevel security and evidence of correctness to meet a particular set of government requirements is called a ""trusted operating system"".The list is alphabetical and does not imply a ranking.
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