Minor Thesis presentation
... latest FPGA having more than 10 million gates and by using dynamic reconfiguration it is now possible to run multiple applications on a single FPGA. This improvement of technology in FPGA made it a candidate for operating system as previously it was not possible because of shortage of resources over ...
... latest FPGA having more than 10 million gates and by using dynamic reconfiguration it is now possible to run multiple applications on a single FPGA. This improvement of technology in FPGA made it a candidate for operating system as previously it was not possible because of shortage of resources over ...
A Pattern Language for Secure Operating System Architectures
... security or reliability requirements. – Strong security or reliability requirements indicate the need for modules with well-defined interfaces. – We may want to perform different types of security checks in different modules, depending their security criticality. – We would like a minimum of functio ...
... security or reliability requirements. – Strong security or reliability requirements indicate the need for modules with well-defined interfaces. – We may want to perform different types of security checks in different modules, depending their security criticality. – We would like a minimum of functio ...
Slide 1
... Exceptional Performance: 76Mb Firewall @ 64Byte packets, 96Mb of 3DES IPsec Modular: Two PIC slots Scalable: 18K firewall sessions, 100K BGP routes Secure: F/W, Proxies (HTTP / SMTP), 802.1x, Authentication, SNMPv3 ...
... Exceptional Performance: 76Mb Firewall @ 64Byte packets, 96Mb of 3DES IPsec Modular: Two PIC slots Scalable: 18K firewall sessions, 100K BGP routes Secure: F/W, Proxies (HTTP / SMTP), 802.1x, Authentication, SNMPv3 ...
Unit 2
... • Catch: run specific function on signal • Ignore: let OS run default function • Mask: prevent signal from occurring ...
... • Catch: run specific function on signal • Ignore: let OS run default function • Mask: prevent signal from occurring ...
Cyber Security in Evolving Enterprise
... & Defense-in-Depth Protection • Current Government approaches are limited – Can we continue to address the increasing threats • Growing numbers of vulnerabilities & patches? • Is signature based virus / malware detection enough – How are out sourced services protected? – How are insider threats deal ...
... & Defense-in-Depth Protection • Current Government approaches are limited – Can we continue to address the increasing threats • Growing numbers of vulnerabilities & patches? • Is signature based virus / malware detection enough – How are out sourced services protected? – How are insider threats deal ...
Document
... Thus, all of the threads of a process share the state and resources of that process. They reside in the same address space and have access to the same data. When one thread alters an item of data in memory, other threads see the results if and when they access that item. If one thread opens a file ...
... Thus, all of the threads of a process share the state and resources of that process. They reside in the same address space and have access to the same data. When one thread alters an item of data in memory, other threads see the results if and when they access that item. If one thread opens a file ...
Operating Systems (Notes to prepare in 1 night before Exam)
... File System:5. File System is a method for storing and organizing computer files and the data they contain, to make it easy to find and access the. 6. It may use a data storage device such as hard disk or CD-ROM and involve maintaining the physical location of the files. 7. Mostly File System make u ...
... File System:5. File System is a method for storing and organizing computer files and the data they contain, to make it easy to find and access the. 6. It may use a data storage device such as hard disk or CD-ROM and involve maintaining the physical location of the files. 7. Mostly File System make u ...
The Architecture of Virtual Machines
... executes an individual process. This type of VM exists solely to support the process; it is created when the process is created and terminates when the process terminates. In contrast, a system VM provides a complete, persistent system environment that supports an operating system along with its man ...
... executes an individual process. This type of VM exists solely to support the process; it is created when the process is created and terminates when the process terminates. In contrast, a system VM provides a complete, persistent system environment that supports an operating system along with its man ...
Osprey: Operating System for Predictable Clouds
... Cloud applications often share hardware in order to run in a cost-effective manner, amortizing the costs of execution over multiple applications. It is crucial for a cloud operating system to isolate applications from each other in order to provide them with enough resources to meet their ServiceLev ...
... Cloud applications often share hardware in order to run in a cost-effective manner, amortizing the costs of execution over multiple applications. It is crucial for a cloud operating system to isolate applications from each other in order to provide them with enough resources to meet their ServiceLev ...
PPT Chapter 03
... – Cannot guarantee that it will be able to meet it • Meets requirements in a probabilistic manner ...
... – Cannot guarantee that it will be able to meet it • Meets requirements in a probabilistic manner ...
Operating System Services
... system itself via resource sharing Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them Many types of resources - CPU cycles, main memory, file storage, I/O ...
... system itself via resource sharing Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them Many types of resources - CPU cycles, main memory, file storage, I/O ...
... interact with each program while it is running. The CPU is multiplexed among several jobs that are kept in memory and on disk (the CPU is allocated to a job only if the job is in memory). A job is swapped in and out of memory to the disk. On-line communication between the user and the system is prov ...
Desktop scheduling: how can we know what the user wants?
... and communicate with it using the X-protocol. The server usually associates a window with each client, such that user input events performed within this window are forwarded to the client (in the form of X-events), and output produced by the client (in the form of X-requests) is directed to this win ...
... and communicate with it using the X-protocol. The server usually associates a window with each client, such that user input events performed within this window are forwarded to the client (in the form of X-events), and output produced by the client (in the form of X-requests) is directed to this win ...
macro virus - University of Windsor
... • Viruses: “programs” that modify other programs on a computer, inserting copies of themselves. Viruses:* not distinct programs *need to have some host program, of which they are a part, executed to activate them *executes secretly, when the host program is run. A typical virus, in a computer, takes ...
... • Viruses: “programs” that modify other programs on a computer, inserting copies of themselves. Viruses:* not distinct programs *need to have some host program, of which they are a part, executed to activate them *executes secretly, when the host program is run. A typical virus, in a computer, takes ...
Desktop Scheduling: How Can We Know What the
... and communicate with it using the X-protocol. The server usually associates a window with each client, such that user input events performed within this window are forwarded to the client (in the form of X-events), and output produced by the client (in the form of X-requests) is directed to this win ...
... and communicate with it using the X-protocol. The server usually associates a window with each client, such that user input events performed within this window are forwarded to the client (in the form of X-events), and output produced by the client (in the form of X-requests) is directed to this win ...
Special Topics on Operating System
... – if # of free pages > free_page_high do nothing – otherwise kswapd try to reduce the number of physical pages being used by the system: ...
... – if # of free pages > free_page_high do nothing – otherwise kswapd try to reduce the number of physical pages being used by the system: ...
Document
... 16. Name the principal events that cause processes to be created 17. What events occur to cause a process to change states? 18. Why should processes not be programmed with built-in assumptions about timing? 19. In what two places may threads be implemented? 20. Name the three states a process can be ...
... 16. Name the principal events that cause processes to be created 17. What events occur to cause a process to change states? 18. Why should processes not be programmed with built-in assumptions about timing? 19. In what two places may threads be implemented? 20. Name the three states a process can be ...
Chapter 3: Operating-System Structures Common System
... Its function is to get and execute the next command statement. ...
... Its function is to get and execute the next command statement. ...
An Immucor Technical Support Solution
... session code supplied by an Immucor Technical Support Representative. Immucor does not have anytime access to the Instrument computer. Is the Cisco Security Appliance absolutely necessary? Yes. The Cisco Security Appliance is necessary to protect the instrument computer from network threats. The Cis ...
... session code supplied by an Immucor Technical Support Representative. Immucor does not have anytime access to the Instrument computer. Is the Cisco Security Appliance absolutely necessary? Yes. The Cisco Security Appliance is necessary to protect the instrument computer from network threats. The Cis ...
M.C.A.(Sem - V) Distributed Computing
... 1. How does the system find an idle workstation? 2. How is a process transferred from one workstation to get it executed on another workstation? 3. What happens to a remote process if a user logs onto a workstation that was idle until now and was being used to execute a process of another workstatio ...
... 1. How does the system find an idle workstation? 2. How is a process transferred from one workstation to get it executed on another workstation? 3. What happens to a remote process if a user logs onto a workstation that was idle until now and was being used to execute a process of another workstatio ...
Niagra Falls Bridge Commission Success Story
... of Brocade Communications Systems, Inc., in the United States and/or in other countries. Other brands, products, or service names mentioned may be trademarks of others. Notice: This document is for informational purposes only and does not set forth any warranty, expressed or implied, concerning any ...
... of Brocade Communications Systems, Inc., in the United States and/or in other countries. Other brands, products, or service names mentioned may be trademarks of others. Notice: This document is for informational purposes only and does not set forth any warranty, expressed or implied, concerning any ...
Modern Operating System by Tanenbaum
... stack size of 15,870 bytes. Will this program fit in the address space? If the page size were 512 bytes, would it fit? Remember that a page may not contain parts of two different segments. Answer: The text is eight pages, the data are five pages, and the stack is four pages. The program does not fit ...
... stack size of 15,870 bytes. Will this program fit in the address space? If the page size were 512 bytes, would it fit? Remember that a page may not contain parts of two different segments. Answer: The text is eight pages, the data are five pages, and the stack is four pages. The program does not fit ...
sample unformatted document
... The first microcomputers did not have the capacity or need for the elaborate operating systems that had been developed for mainframes and minis; minimalistic operating systems were developed, often loaded from ROM and known as monitors. One notable early disk operating system was CP/M, which was sup ...
... The first microcomputers did not have the capacity or need for the elaborate operating systems that had been developed for mainframes and minis; minimalistic operating systems were developed, often loaded from ROM and known as monitors. One notable early disk operating system was CP/M, which was sup ...