No Slide Title - ECE Users Pages
... If device can serve only one request at a time i.e., Printing ...
... If device can serve only one request at a time i.e., Printing ...
Firewall Evolution
... packets in a flow based on source and destination IP addresses, source and destination ports, and the protocol used. If a packet matched this information bi-directionally, then it belonged to the flow. As use of the Internet expanded and businesses became highly networked, they could selectively pro ...
... packets in a flow based on source and destination IP addresses, source and destination ports, and the protocol used. If a packet matched this information bi-directionally, then it belonged to the flow. As use of the Internet expanded and businesses became highly networked, they could selectively pro ...
device special files
... Using Device Drivers • Using Device Manager to Install or Update a Driver – A device uses the computer’s resources to enable it to function and communicate with the computer. – A computer’s resources include the interrupt request (IRQ) line and one or more I/O address ranges. • The IRQ line is a ch ...
... Using Device Drivers • Using Device Manager to Install or Update a Driver – A device uses the computer’s resources to enable it to function and communicate with the computer. – A computer’s resources include the interrupt request (IRQ) line and one or more I/O address ranges. • The IRQ line is a ch ...
Chapter 1: Introduction
... Protection and Security Protection – any mechanism for controlling access of processes or ...
... Protection and Security Protection – any mechanism for controlling access of processes or ...
2.01
... Many systems now servers, responding to requests generated by clients Compute-server provides an interface to client to request ...
... Many systems now servers, responding to requests generated by clients Compute-server provides an interface to client to request ...
ppt
... Many systems now servers, responding to requests generated by clients Compute-server provides an interface to client to request ...
... Many systems now servers, responding to requests generated by clients Compute-server provides an interface to client to request ...
ch1
... Many systems now servers, responding to requests generated by clients Compute-server provides an interface to client to request ...
... Many systems now servers, responding to requests generated by clients Compute-server provides an interface to client to request ...
Chap. 2, Operating System Structures
... Some ask the system for info - date, time, amount of available memory, disk space, number of users Others provide detailed performance, logging, and debugging information Typically, these programs format and print the output to the terminal or other output devices Some systems implement a regi ...
... Some ask the system for info - date, time, amount of available memory, disk space, number of users Others provide detailed performance, logging, and debugging information Typically, these programs format and print the output to the terminal or other output devices Some systems implement a regi ...
![[slides] Introduction to operating systems](http://s1.studyres.com/store/data/008424874_1-c77938149d61eec399f6c5c58edfa526-300x300.png)
[slides] Introduction to operating systems
... One can still access the whole memory But the speed of access depends whether memory is local or remote Contrast this with message based systems where remote memory ...
... One can still access the whole memory But the speed of access depends whether memory is local or remote Contrast this with message based systems where remote memory ...
Distributed systems
... A distributed operating system supports the encapsulation and protection of resources inside servers; and it supports mechanisms required to access these resources, including naming, communication and scheduling The software for multiple CPU systems can be ...
... A distributed operating system supports the encapsulation and protection of resources inside servers; and it supports mechanisms required to access these resources, including naming, communication and scheduling The software for multiple CPU systems can be ...
Hands-On Ethical Hacking and Network Security
... but I leave it as an exercise for readers to determine what satisfaction is obtained by the authors of tools that turn threat into reality and lay waste to millions of dollars of investments.” --"Real 802.11 Security", William Arbaugh and Jon Edney, as quoted in link Ch 11g ...
... but I leave it as an exercise for readers to determine what satisfaction is obtained by the authors of tools that turn threat into reality and lay waste to millions of dollars of investments.” --"Real 802.11 Security", William Arbaugh and Jon Edney, as quoted in link Ch 11g ...
Last Class: Processes Example Unix Program: Fork
... simultaneously (utilization, throughput,..), but this is not generally possible Instead, choose a scheduling algorithm based on its ability to satisfy a policy • Minimize average response time - provide output to the user as quickly as possible and process their input as soon as it is received. • ...
... simultaneously (utilization, throughput,..), but this is not generally possible Instead, choose a scheduling algorithm based on its ability to satisfy a policy • Minimize average response time - provide output to the user as quickly as possible and process their input as soon as it is received. • ...
- TestbankU
... Ans: The modular approach combines the benefits of both the layered and microkernel design techniques. In a modular design, the kernel needs only to have the capability to perform the required functions and know how to communicate between modules. However, if more functionality is required in the k ...
... Ans: The modular approach combines the benefits of both the layered and microkernel design techniques. In a modular design, the kernel needs only to have the capability to perform the required functions and know how to communicate between modules. However, if more functionality is required in the k ...
lecture8
... A section of code in Windows operating system that modifies data structures shared by multiple threads is called a critical section. It is important than when a critical section is running in one thread that no other thread be able to access that data structure. Synchronization is necessary to ensu ...
... A section of code in Windows operating system that modifies data structures shared by multiple threads is called a critical section. It is important than when a critical section is running in one thread that no other thread be able to access that data structure. Synchronization is necessary to ensu ...
COSC 530: Semester Project Dalvik Virtual Machine
... processor power. Dalvik’s register-based architecture allows Android to be more efficient and faster compared to the stack-based design of the JVM. Also, Android platform is designed to run apps from thousands of users and vendors; it must provide a high-level of security for individual apps as well ...
... processor power. Dalvik’s register-based architecture allows Android to be more efficient and faster compared to the stack-based design of the JVM. Also, Android platform is designed to run apps from thousands of users and vendors; it must provide a high-level of security for individual apps as well ...
Process Control
... z Asleep in memory: unable to execute until an event occurs; process in main memory. z Ready to run, swapped: process is ready to run, but the the swapper must swap the process into main memory before the kernel can schedule it to execute. z Sleeping, swapped: The process is awaiting an event and ha ...
... z Asleep in memory: unable to execute until an event occurs; process in main memory. z Ready to run, swapped: process is ready to run, but the the swapper must swap the process into main memory before the kernel can schedule it to execute. z Sleeping, swapped: The process is awaiting an event and ha ...
Kernel I/O Subsystem
... Varying enough from block and character to have own interface Unix and Windows NT/9x/2000 include socket interface ...
... Varying enough from block and character to have own interface Unix and Windows NT/9x/2000 include socket interface ...
Operating Systems Concepts Resource Abstraction
... • How does the hardware know where the kernel is or how to load that kernel? – Use a bootstrap program or loader – Execution starts at a predefined memory location in ROM (read-only memory) – Read a single block at a fixed location on disk and execute the code from that boot block – Easily change op ...
... • How does the hardware know where the kernel is or how to load that kernel? – Use a bootstrap program or loader – Execution starts at a predefined memory location in ROM (read-only memory) – Read a single block at a fixed location on disk and execute the code from that boot block – Easily change op ...
Business Continuity / Disaster Recovery
... Router Independent Traffic Dynamically Load Balanced ...
... Router Independent Traffic Dynamically Load Balanced ...
Introduction
... The embedded systems you've worked with in EE354 and EE454 are superloop systems in which all of the functions are performed in a single (infinite loop). Superloop design is fine for small, simple systems. Larger, more complex applications will typically use an embedded operating system. Embedded op ...
... The embedded systems you've worked with in EE354 and EE454 are superloop systems in which all of the functions are performed in a single (infinite loop). Superloop design is fine for small, simple systems. Larger, more complex applications will typically use an embedded operating system. Embedded op ...
Chapter 13 PPT Silberschatz slides (Our Text Book) on I/O systems
... Buffering - store data in memory while transferring between devices To cope with device speed mismatch - de-couples application from device action To cope with device transfer size mismatch To maintain “copy semantics” - guarantee that the version of data written to device from a buffer is i ...
... Buffering - store data in memory while transferring between devices To cope with device speed mismatch - de-couples application from device action To cope with device transfer size mismatch To maintain “copy semantics” - guarantee that the version of data written to device from a buffer is i ...