packet routing based on channels bandwidth and number of hops
... default metric based on bandwidth is used. The higher the bandwidth, the lower path cost is, and so the packet will be sent though the path with maximum bandwidth [1, 2]. Based on the tree of shortest paths routing table is built. Input data for Dijkstra's algorithm is weighted graph corresponding t ...
... default metric based on bandwidth is used. The higher the bandwidth, the lower path cost is, and so the packet will be sent though the path with maximum bandwidth [1, 2]. Based on the tree of shortest paths routing table is built. Input data for Dijkstra's algorithm is weighted graph corresponding t ...
ppt
... – Internally concurrent because have to deal with concurrent requests by multiple users – But no protection needed within kernel ...
... – Internally concurrent because have to deal with concurrent requests by multiple users – But no protection needed within kernel ...
Processes - United International College
... • The Operating System must – Interleave the execution of multiple processes – Allocate resources to processes, and protect the resources of each process from other processes, – Enable processes to share and exchange information, – Enable synchronization among processes. ...
... • The Operating System must – Interleave the execution of multiple processes – Allocate resources to processes, and protect the resources of each process from other processes, – Enable processes to share and exchange information, – Enable synchronization among processes. ...
The SAS System for the UNIX Environment
... In order to discuss how the SAS System fits into the UNIX environment, the following is a brief outline of UNIX operating systems and what features particular to these systems were utilized in the development of the SAS System under UNIX operating systems. Technical Background of UNIX Operating Syst ...
... In order to discuss how the SAS System fits into the UNIX environment, the following is a brief outline of UNIX operating systems and what features particular to these systems were utilized in the development of the SAS System under UNIX operating systems. Technical Background of UNIX Operating Syst ...
ppt - Courses
... Highly successful in supporting one-to-one (unicast) communication But there are some limitations: - Difficult to deploy new network services (e.g., IP multicast, IP anycast, QoS, IPv6) - Lack of support for one-to-many (multicast) or even many-tomany (“peer-to-peer”) communication - End hosts h ...
... Highly successful in supporting one-to-one (unicast) communication But there are some limitations: - Difficult to deploy new network services (e.g., IP multicast, IP anycast, QoS, IPv6) - Lack of support for one-to-many (multicast) or even many-tomany (“peer-to-peer”) communication - End hosts h ...
Processes, Threads and Synchronization
... When a thread is switched out, what happens to it? How do we find it to switch it back in? This is what the TCB is for. System typically has A run queue that points to the TCBs of threads ready to run A blocked queue per device to hold the TCBs of threads blocked waiting for an I/O operation on that ...
... When a thread is switched out, what happens to it? How do we find it to switch it back in? This is what the TCB is for. System typically has A run queue that points to the TCBs of threads ready to run A blocked queue per device to hold the TCBs of threads blocked waiting for an I/O operation on that ...
CS 519 -- Operating Systems -
... When a thread is switched out, what happens to it? How do we find it to switch it back in? This is what the TCB is for. System typically has A run queue that points to the TCBs of threads ready to run A blocked queue per device to hold the TCBs of threads blocked waiting for an I/O operation on that ...
... When a thread is switched out, what happens to it? How do we find it to switch it back in? This is what the TCB is for. System typically has A run queue that points to the TCBs of threads ready to run A blocked queue per device to hold the TCBs of threads blocked waiting for an I/O operation on that ...
What is an Operating System? - Sekolah Tinggi Teknik Surabaya
... buffering (storing data temporarily while it is being transferred), caching (storing parts of data in faster storage for performance), spooling (the overlapping of output of one job with input of other jobs) ˃ General device-driver interface ˃ Drivers for specific hardware devices © Sekolah Tinggi T ...
... buffering (storing data temporarily while it is being transferred), caching (storing parts of data in faster storage for performance), spooling (the overlapping of output of one job with input of other jobs) ˃ General device-driver interface ˃ Drivers for specific hardware devices © Sekolah Tinggi T ...
Colour version (for viewing)
... A priority is associated with each process; CPU is allocated to the process with the highest priority. FCFS is used to resolve situations involving processes with equal priority. There are two versions, preemptive and non-preemptive. Priority can be static, or dynamic. Advantages Takes int ...
... A priority is associated with each process; CPU is allocated to the process with the highest priority. FCFS is used to resolve situations involving processes with equal priority. There are two versions, preemptive and non-preemptive. Priority can be static, or dynamic. Advantages Takes int ...
Chapter 3 Process Description and Control
... • The Operating System must – Interleave the execution of multiple processes – Allocate resources to processes, and protect the resources of each process from other processes, – Enable processes to share and exchange information, – Enable synchronization among processes. ...
... • The Operating System must – Interleave the execution of multiple processes – Allocate resources to processes, and protect the resources of each process from other processes, – Enable processes to share and exchange information, – Enable synchronization among processes. ...
Operating-System Structures
... System goals – OS should be easy to design, implement, and maintain, as well as flexible, reliable, error-free, and efficient ...
... System goals – OS should be easy to design, implement, and maintain, as well as flexible, reliable, error-free, and efficient ...
Process Description and Control
... • The Operating System must – Interleave the execution of multiple processes – Allocate resources to processes, and protect the resources of each process from other processes, – Enable processes to share and exchange information, – Enable synchronization among processes. ...
... • The Operating System must – Interleave the execution of multiple processes – Allocate resources to processes, and protect the resources of each process from other processes, – Enable processes to share and exchange information, – Enable synchronization among processes. ...
3.1 What are the five major activities of an operating system in
... debugging and testing are simplified. The layers are designed so that each uses only lower-level services. The interface between the layers is well defined, and encapsulates the implementation details of each level from higher levels. 3.10 The virtual-machine architecture is useful to an operating-s ...
... debugging and testing are simplified. The layers are designed so that each uses only lower-level services. The interface between the layers is well defined, and encapsulates the implementation details of each level from higher levels. 3.10 The virtual-machine architecture is useful to an operating-s ...
Lecture 3: Concurrency
... – Internally concurrent because have to deal with concurrent requests by multiple users – But no protection needed within kernel ...
... – Internally concurrent because have to deal with concurrent requests by multiple users – But no protection needed within kernel ...
Alcatel Cable Observatory v2 - Norwegian Ocean Observatory
... Architecture: Optical transmission;- Mesh vs. ring ...
... Architecture: Optical transmission;- Mesh vs. ring ...
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727 PP 06-13 www.iosrjournals.org
... Mobile Ad Hoc Network (MANET) is a collection of mobile nodes which communicate with each other via wireless links either directly or relying on other nodes as routers. The operation of MANET does not depend on pre-existing infrastructure or base stations. A mobile node can become a failed node for ...
... Mobile Ad Hoc Network (MANET) is a collection of mobile nodes which communicate with each other via wireless links either directly or relying on other nodes as routers. The operation of MANET does not depend on pre-existing infrastructure or base stations. A mobile node can become a failed node for ...
I N T R O D U C I N... I N T C L P... Proceedings of the 7 USENIX Tcl/Tk Conference
... protocols which aims at making broadly available integrated services across the Internet. The key assumption on which the reference model for integrated services is built is that network resources (first of all its bandwidth) must be explicitly managed in order to meet application requirements. The ...
... protocols which aims at making broadly available integrated services across the Internet. The key assumption on which the reference model for integrated services is built is that network resources (first of all its bandwidth) must be explicitly managed in order to meet application requirements. The ...
ppt - Course Website Directory
... Each packet contains a sequence number that is incremented for each new LSA packet sent. Each router keeps track of all the (source router, sequence) pairs it sees. When a new LSA packet comes in, it is checked against the pairs. If the received packet is new, it is forwarded on all the links except ...
... Each packet contains a sequence number that is incremented for each new LSA packet sent. Each router keeps track of all the (source router, sequence) pairs it sees. When a new LSA packet comes in, it is checked against the pairs. If the received packet is new, it is forwarded on all the links except ...
Assignment0: Linux Basics and /proc
... makes /proc the current directory. Once you have made /proc the current directory, you can list its contents by using the ls command. The contents appear to be ordinary files and directories. However, a file in /proc or one of its subdirectories is actually a program that reads kernel variables and ...
... makes /proc the current directory. Once you have made /proc the current directory, you can list its contents by using the ls command. The contents appear to be ordinary files and directories. However, a file in /proc or one of its subdirectories is actually a program that reads kernel variables and ...
- Lancaster EPrints
... claimed that a multi-threaded operating system has comparatively better event processing capabilities in terms of meeting processing deadlines [2]. Again, an in-depth analysis is currently missing and is therefore conducted. For the comparisons, the event-based system TinyOS and the multi-threaded s ...
... claimed that a multi-threaded operating system has comparatively better event processing capabilities in terms of meeting processing deadlines [2]. Again, an in-depth analysis is currently missing and is therefore conducted. For the comparisons, the event-based system TinyOS and the multi-threaded s ...
Distributed operating system
A distributed operating system is a software over a collection of independent, networked, communicating, and physically separate computational nodes. Each individual node holds a specific software subset of the global aggregate operating system. Each subset is a composite of two distinct service provisioners. The first is a ubiquitous minimal kernel, or microkernel, that directly controls that node’s hardware. Second is a higher-level collection of system management components that coordinate the node's individual and collaborative activities. These components abstract microkernel functions and support user applications.The microkernel and the management components collection work together. They support the system’s goal of integrating multiple resources and processing functionality into an efficient and stable system. This seamless integration of individual nodes into a global system is referred to as transparency, or single system image; describing the illusion provided to users of the global system’s appearance as a single computational entity.