Operating Systems: Principles and Practice, Introduction
... Time-Sharing Operating Systems: Computers and People Expensive • Multiple users on computer at same time – Multiprogramming: run multiple programs at same time – Interactive performance: try to complete everyone’s tasks quickly – As computers became cheaper, more important to optimize for user time ...
... Time-Sharing Operating Systems: Computers and People Expensive • Multiple users on computer at same time – Multiprogramming: run multiple programs at same time – Interactive performance: try to complete everyone’s tasks quickly – As computers became cheaper, more important to optimize for user time ...
What is an operating system?
... An operating system is the most important software that runs on a computer. It manages the computer's memory, processes, and all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's language. Without an operating system, a comp ...
... An operating system is the most important software that runs on a computer. It manages the computer's memory, processes, and all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's language. Without an operating system, a comp ...
Structure of Operating Systems
... • Interrupts and traps • Protection, system calls and operating mode • OS structure • What happens when you boot a computer? ...
... • Interrupts and traps • Protection, system calls and operating mode • OS structure • What happens when you boot a computer? ...
batch systems
... • persistence - how to make data last longer than programs • compatibility - can we ever do anything new? • distribution - can the components of the system be geographically separated? • accounting - who pays the bills? how do we control resource usage? ...
... • persistence - how to make data last longer than programs • compatibility - can we ever do anything new? • distribution - can the components of the system be geographically separated? • accounting - who pays the bills? how do we control resource usage? ...
Part IV: Longer Answer: Use your knowledge of operating systems to
... installation and configuration of device drivers after a hardware device has been installed. 4. _______________ is a multi-user time-sharing operating system; most versions are based on AT&T System 5 and Berkeley Software Distribution 5. _______________ is a situation where one or more processes is ...
... installation and configuration of device drivers after a hardware device has been installed. 4. _______________ is a multi-user time-sharing operating system; most versions are based on AT&T System 5 and Berkeley Software Distribution 5. _______________ is a situation where one or more processes is ...
Slide 1
... A typical configuration for a network operating system would be a collection of personal computers along with a common printer server and file server for archival storage, all tied together by a local network. Generally speaking, such a system will have most of the following characteristics that dis ...
... A typical configuration for a network operating system would be a collection of personal computers along with a common printer server and file server for archival storage, all tied together by a local network. Generally speaking, such a system will have most of the following characteristics that dis ...
W. Stallings, Operating Systems Internal and Design Principles
... have direct access to processor, but submits the job on cards or tape to a computer operator who batches the jobs together and places the entire batch on an input device, for use by the monitor; each job branches back to the monitor when it completes. With each job, instructions are included in a pr ...
... have direct access to processor, but submits the job on cards or tape to a computer operator who batches the jobs together and places the entire batch on an input device, for use by the monitor; each job branches back to the monitor when it completes. With each job, instructions are included in a pr ...
COS 318: Operating Systems Introduction Kai Li Computer Science Department
... Learn about concurrency ...
... Learn about concurrency ...
Evolution of Operating System
... o At end of time slice current job is set aside and a new one starts o By rapidly shuffling jobs, illusion of several jobs executing simultaneously is created ...
... o At end of time slice current job is set aside and a new one starts o By rapidly shuffling jobs, illusion of several jobs executing simultaneously is created ...
Exercises
... Answer: Mechanismand policymust be separate to ensure that systems are easy to modify. No two system installations are the same, so each installation may want to tune the operating system to suit its needs. With mechanism and policy separate, the policy may be changed at will while the mechanism sta ...
... Answer: Mechanismand policymust be separate to ensure that systems are easy to modify. No two system installations are the same, so each installation may want to tune the operating system to suit its needs. With mechanism and policy separate, the policy may be changed at will while the mechanism sta ...
Computer science The Tired Librarian 80
... think; I think therefore I am.) and “An optimist may see a light where there is none, but why must the pessimist always run to blow it out?” ...
... think; I think therefore I am.) and “An optimist may see a light where there is none, but why must the pessimist always run to blow it out?” ...
Training
... • C, D, E, F (25% - 60%) • Average of this class should be either B- or C+. • To pass this subject, the final exam should be >= 30. • To pass this subject, the overall score should be >= 35. • To get the “A” grade, the overall score should be at least 68. • Each person, each semester can have one su ...
... • C, D, E, F (25% - 60%) • Average of this class should be either B- or C+. • To pass this subject, the final exam should be >= 30. • To pass this subject, the overall score should be >= 35. • To get the “A” grade, the overall score should be at least 68. • Each person, each semester can have one su ...
PPT
... To introduce students to the abstractions and facilities provided by modern operating systems. To familiarize students with the issues that arise when implementing operation system services ...
... To introduce students to the abstractions and facilities provided by modern operating systems. To familiarize students with the issues that arise when implementing operation system services ...
COS 318: Operating Systems Introduction Kai Li Computer Science Department
... It is “magic” to realize what we want It gives us “power” (reduce fear factor) Parallel programs run on OS OS runs on parallel hardware Best way to learn concurrent programming ...
... It is “magic” to realize what we want It gives us “power” (reduce fear factor) Parallel programs run on OS OS runs on parallel hardware Best way to learn concurrent programming ...
I. Course code and Title OPERATING SYSTEM CONCEPTS II
... principles. 8th Edition. Upper Saddle River, NJ: Prentice Hall, 2012. Bach, Maurice J. The design of the UNIX operating system. Vol. 5. Englewood Cliffs, NJ: Prentice-Hall, 1986. ...
... principles. 8th Edition. Upper Saddle River, NJ: Prentice Hall, 2012. Bach, Maurice J. The design of the UNIX operating system. Vol. 5. Englewood Cliffs, NJ: Prentice-Hall, 1986. ...
Computer Science 101
... – Many programs can be stored in memory – Allows programmer to enter system commands, programs, and data online – Allows multiple programmers to run programs simultaneously on one computer (time sharing) ...
... – Many programs can be stored in memory – Allows programmer to enter system commands, programs, and data online – Allows multiple programmers to run programs simultaneously on one computer (time sharing) ...
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Welcome [mll.csie.ntu.edu.tw]
... Read posted messages before posting new questions. No SPAM. TAs respond to your questions as quickly as possible. ...
... Read posted messages before posting new questions. No SPAM. TAs respond to your questions as quickly as possible. ...
Lec1
... OS as government – protect users from each other and allocate resources efficiently and fairly. OS as complex system – keeping things simple is key to getting it to work; but there is a constant tension between this and the desire to add more functionality and performance. OS as history teacher – le ...
... OS as government – protect users from each other and allocate resources efficiently and fairly. OS as complex system – keeping things simple is key to getting it to work; but there is a constant tension between this and the desire to add more functionality and performance. OS as history teacher – le ...
operating system
... programs (location in memory, stack pointer, program counter). When a program is run, the operating system converts it into a process. It is the process, rather than the simple program, that the processor executes. ...
... programs (location in memory, stack pointer, program counter). When a program is run, the operating system converts it into a process. It is the process, rather than the simple program, that the processor executes. ...
System Software and Application Software Operating System
... It aims to increase the level of communication between machines on a home network, using peer-topeer technology to simplify sharing files and media between computers and devices. ...
... It aims to increase the level of communication between machines on a home network, using peer-topeer technology to simplify sharing files and media between computers and devices. ...
N4Less11
... Applications and the Interface • Applications designed to run under one operating system use similar interface elements. • Under an OS such as Windows, you see a familiar interface no matter what programs you use. • In a GUI, each program opens and runs in a separate window—a frame that presents the ...
... Applications and the Interface • Applications designed to run under one operating system use similar interface elements. • Under an OS such as Windows, you see a familiar interface no matter what programs you use. • In a GUI, each program opens and runs in a separate window—a frame that presents the ...
system call.
... 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 swapped in and out of memory to the disk. On-line communication between the user and the system is provided; when the operating system finishes the execut ...
... 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 swapped in and out of memory to the disk. On-line communication between the user and the system is provided; when the operating system finishes the execut ...
Operating Systems - University of Connecticut
... Coordinates multiple applications and users to achieve safety, fairness and efficiency (high throughput) ...
... Coordinates multiple applications and users to achieve safety, fairness and efficiency (high throughput) ...