ppt
... • Describe the typical CPU instruction cycle • Explain the operation of CPU interrupts • Describe the memory hierarchy, and how its various elements interact • Explain the difference between programmed I/O, interrupt-driven I/O, and DMA • Understand multiprocessor architecture differences ...
... • Describe the typical CPU instruction cycle • Explain the operation of CPU interrupts • Describe the memory hierarchy, and how its various elements interact • Explain the difference between programmed I/O, interrupt-driven I/O, and DMA • Understand multiprocessor architecture differences ...
Chapter 1 Introduction
... services it requires. If it only interacts with the hardware in a small number of well-defined ways, it might be worthwhile. [Section 1.1] 3. Most single user, personal computers are now multitasking – there is more than one program running at the same time. There is a need to provide virtual memory ...
... services it requires. If it only interacts with the hardware in a small number of well-defined ways, it might be worthwhile. [Section 1.1] 3. Most single user, personal computers are now multitasking – there is more than one program running at the same time. There is a need to provide virtual memory ...
2. Operating System Models
... 2.2 What is New in OS Trends ? Todays operating systems provide two fundamental services for users. First, they make the computer hardware easier to use. They create a virtual machine that differs markedly from the real machine. Indeed, the computer revolution of the last two decades is due, in par ...
... 2.2 What is New in OS Trends ? Todays operating systems provide two fundamental services for users. First, they make the computer hardware easier to use. They create a virtual machine that differs markedly from the real machine. Indeed, the computer revolution of the last two decades is due, in par ...
Systems Area: OS and Networking
... - each node has a few “neighbors” in a virtual network - virtual link: node knows other’s IP address - do app-level “networking” on this graph ...
... - each node has a few “neighbors” in a virtual network - virtual link: node knows other’s IP address - do app-level “networking” on this graph ...
Last Class: Introduction to Operating Systems Course Staff Office
... processing, multiple programs, etc.) ...
... processing, multiple programs, etc.) ...
Last Class: Introduction to Operating Systems
... users and processors, some instructions are restricted to use only by the OS. Users may not – address I/O directly – use instructions that manipulate the state of memory (page table pointers, TLB load, etc.) – set the mode bits that determine user or kernel mode – disable and enable interrupts – hal ...
... users and processors, some instructions are restricted to use only by the OS. Users may not – address I/O directly – use instructions that manipulate the state of memory (page table pointers, TLB load, etc.) – set the mode bits that determine user or kernel mode – disable and enable interrupts – hal ...
7 Operating Systems
... in parallel instead of serially. The operating systems required for this are more complex than those that support single CPUs. ...
... in parallel instead of serially. The operating systems required for this are more complex than those that support single CPUs. ...
FAST-OS BOF SC 04 - Department of Computer Science
... forthcoming petascale computer systems, hardware failures will be routinely encountered during execution of large-scale applications. • Application Driver – Multidisciplinary, multiresolution, and multiscale nature of scientific problems – drive the demand for high end systems – applications place i ...
... forthcoming petascale computer systems, hardware failures will be routinely encountered during execution of large-scale applications. • Application Driver – Multidisciplinary, multiresolution, and multiscale nature of scientific problems – drive the demand for high end systems – applications place i ...
pptx - GitHub Pages
... Apps link with LibOS of their choice Kernel allows LibOS to manage resources, protects ...
... Apps link with LibOS of their choice Kernel allows LibOS to manage resources, protects ...
Thread - Nipissing University Word
... Network OS's (e.g. Mach, modern UNIX, Windows NT) • In a distributed OS, the user doesn't know (or care) where his programs are – do the same but they also support a wide range of communication standards and running. enable remote processes to access (some) local resources (e.g. files). ...
... Network OS's (e.g. Mach, modern UNIX, Windows NT) • In a distributed OS, the user doesn't know (or care) where his programs are – do the same but they also support a wide range of communication standards and running. enable remote processes to access (some) local resources (e.g. files). ...
08 Operating System Support
... • Program creation: The OS provides a variety of facilities and services, such as editors and debuggers, to assist the programmer in creating programs. Typically, these services are in the form of utility programs that are not actually part of the OS but are accessible through the OS. • Program exec ...
... • Program creation: The OS provides a variety of facilities and services, such as editors and debuggers, to assist the programmer in creating programs. Typically, these services are in the form of utility programs that are not actually part of the OS but are accessible through the OS. • Program exec ...
emulab.net: A Network Emulation and Distributed Systems Testbed
... “Memory and CPU demands on the individual nodes were not measured, but we believe will be modest.” “The authors ignore interrupt handling overhead in their evaluation, which likely dominates all other costs.” “You have to know the right people to use the cluster.” “The cluster is hard to use.” “
... “Memory and CPU demands on the individual nodes were not measured, but we believe will be modest.” “The authors ignore interrupt handling overhead in their evaluation, which likely dominates all other costs.” “You have to know the right people to use the cluster.” “The cluster is hard to use.” “
Systems of Systems
... (Kansas City) Air Route Traffic Control Center, a technician routed power through half of the redundant uninterruptible power system, preparatory to performing the annual preventive maintenance on the other half. Apparently the wrong board was pulled. ...
... (Kansas City) Air Route Traffic Control Center, a technician routed power through half of the redundant uninterruptible power system, preparatory to performing the annual preventive maintenance on the other half. Apparently the wrong board was pulled. ...
4 Distributed Multimedia Systems (PPT Slides) File
... Multimedia Communication Systems Techniques, Standards, and Networks Chapter 4 Distributed Multimedia Systems ...
... Multimedia Communication Systems Techniques, Standards, and Networks Chapter 4 Distributed Multimedia Systems ...
Privacy Preserving Data Sharing With Anonymous ID Assignment
... This technique is used iteratively to assign these nodes ID numbers ranging from 1 to N. This assignment is anonymous in that the identities received are unknown to the other members of the group. Resistance to collusion among other members is verified in an information theoretic sense when private ...
... This technique is used iteratively to assign these nodes ID numbers ranging from 1 to N. This assignment is anonymous in that the identities received are unknown to the other members of the group. Resistance to collusion among other members is verified in an information theoretic sense when private ...
Indirect Communication
... Sender does not need to know ID of receiver; sender(s) and receiver(s) can have independent lifetimes e.g. Message oriented middleware ...
... Sender does not need to know ID of receiver; sender(s) and receiver(s) can have independent lifetimes e.g. Message oriented middleware ...
operating system
... in parallel instead of serially. The operating systems required for this are more complex than those that support single CPUs. ...
... in parallel instead of serially. The operating systems required for this are more complex than those that support single CPUs. ...
Document
... in parallel instead of serially. The operating systems required for this are more complex than those that support single CPUs. ...
... in parallel instead of serially. The operating systems required for this are more complex than those that support single CPUs. ...
Securing a Host Computer
... ◦ Desirable because it’s free. ◦ A single copy of Linux may be installable on multiple servers. ◦ Linux contains only the kernel of Unix, and packaged with many other programs. Cons: ◦ May require more labor to administer. ◦ The many different versions make this operating system difficult to harden. ...
... ◦ Desirable because it’s free. ◦ A single copy of Linux may be installable on multiple servers. ◦ Linux contains only the kernel of Unix, and packaged with many other programs. Cons: ◦ May require more labor to administer. ◦ The many different versions make this operating system difficult to harden. ...
Computer Hardware and Software Infrastructure Operating System
... signaling mechanism can result in loss or duplication ...
... signaling mechanism can result in loss or duplication ...
2. An Operating System, What For?
... Expressive and efficient address-space protection and separation Hides kernel and other processes’ memory Automatic translation to physical addresses by the CPU (MMU/TLB circuits) ...
... Expressive and efficient address-space protection and separation Hides kernel and other processes’ memory Automatic translation to physical addresses by the CPU (MMU/TLB circuits) ...
Shared Memory IPC
... procedure calls At least, IPC mechanisms can be simulated by each other Depends on model of computation And on philosophy of user In particular cases, hardware or existing software may make one perform better Univ. of Tehran ...
... procedure calls At least, IPC mechanisms can be simulated by each other Depends on model of computation And on philosophy of user In particular cases, hardware or existing software may make one perform better Univ. of Tehran ...
Chapter 2: Operating-System Structures • Operating-System
... – File backup on stable (nonvolatile) storage media. Operating System Concepts ...
... – File backup on stable (nonvolatile) storage media. Operating System Concepts ...
No Slide Title
... Users are aware of multiplicity of machines. Access to resources of various ...
... Users are aware of multiplicity of machines. Access to resources of various ...
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.