Operating System
... ★ Others, such as Windows XP and Unix, treat the command interpreter as a special program that is running when a job is initiated or when the user firs logs on. On systems with multiple command interpreters to choose from, the interpreters are know as shells. The main function of the command interpr ...
... ★ Others, such as Windows XP and Unix, treat the command interpreter as a special program that is running when a job is initiated or when the user firs logs on. On systems with multiple command interpreters to choose from, the interpreters are know as shells. The main function of the command interpr ...
Linux+ Guide to Linux Certification
... Describe the origins of the Linux operating system Understand the term “Opensource Software” Identify the characteristics of various Linux distributions Common uses of Linux in industry today Key features of the Linux operating system ...
... Describe the origins of the Linux operating system Understand the term “Opensource Software” Identify the characteristics of various Linux distributions Common uses of Linux in industry today Key features of the Linux operating system ...
FreeBSD for the Linux user
... • Head of the tree (-current) is now FreeBSD 6.0 • When 4.0 came out, a branch was created for “4-STABLE” and minor releases up to 4.11 happened every 4 months. • These minor releases (4.1, 4.2, etc) consist of bug fixes backported from -CURRENT, and new features in -CURRENT that have been extensive ...
... • Head of the tree (-current) is now FreeBSD 6.0 • When 4.0 came out, a branch was created for “4-STABLE” and minor releases up to 4.11 happened every 4 months. • These minor releases (4.1, 4.2, etc) consist of bug fixes backported from -CURRENT, and new features in -CURRENT that have been extensive ...
Department of CSE
... 11. What are the different services provided by an operating system? UNIT-II 12. What are the five activities of an OS with regards to file management? 13. What is the main advantage for an OS designer of using virtual machine architecture? 14. Describe the action taken by a kernel to context switch ...
... 11. What are the different services provided by an operating system? UNIT-II 12. What are the five activities of an OS with regards to file management? 13. What is the main advantage for an OS designer of using virtual machine architecture? 14. Describe the action taken by a kernel to context switch ...
Lecture #3: Operating
... systems) can share the same hardware Protect from each other Some sharing of file can be permitted, controlled Commutate with each other, other physical systems via networking Useful for development, testing Consolidation of many low-resource use systems onto fewer busier systems “Open V ...
... systems) can share the same hardware Protect from each other Some sharing of file can be permitted, controlled Commutate with each other, other physical systems via networking Useful for development, testing Consolidation of many low-resource use systems onto fewer busier systems “Open V ...
LINUX Virtualization
... execution of special instructions. This allows a virtual machine (and its associated guest operating system) to run until the VMM regains control. Pacifica also amends address translation with host and guest memory management unit (MMU) tables. ...
... execution of special instructions. This allows a virtual machine (and its associated guest operating system) to run until the VMM regains control. Pacifica also amends address translation with host and guest memory management unit (MMU) tables. ...
CS5460: Operating Systems
... – Started in 1963, done in 1969, dead shortly thereafter – Bell Labs bailed on project, GE bailed on computers! – DEC PDP minicomputers: start of bottom feeding frenzy – PDP-1 in 1961 (4K 18-bit words, $120,000) – Kernighan dubbed OS UNICS to poke fun at Ken Thompson – C language developed for ...
... – Started in 1963, done in 1969, dead shortly thereafter – Bell Labs bailed on project, GE bailed on computers! – DEC PDP minicomputers: start of bottom feeding frenzy – PDP-1 in 1961 (4K 18-bit words, $120,000) – Kernighan dubbed OS UNICS to poke fun at Ken Thompson – C language developed for ...
The Nachos Instructional Operating System
... balance is needed between the time students spend reading code versus adding features to existing code versus learning new concepts. Starting with code that is too realistic could lead students to lose sight of key ideas in a forest of details. Our approach was to build the simplest implementation w ...
... balance is needed between the time students spend reading code versus adding features to existing code versus learning new concepts. Starting with code that is too realistic could lead students to lose sight of key ideas in a forest of details. Our approach was to build the simplest implementation w ...
Linux Systems Programming I
... language, including programs broken into several files; 3. adhere to style and documentation standards in writing programs; 4. use system debuggers to step into and over code, set breakpoints and watch variables; 5. identify what makes a good test data suite and use it to thoroughly test a program u ...
... language, including programs broken into several files; 3. adhere to style and documentation standards in writing programs; 4. use system debuggers to step into and over code, set breakpoints and watch variables; 5. identify what makes a good test data suite and use it to thoroughly test a program u ...
Operating Systems Operating Systems Operating Systems
... – It is the first software we see when we turn on the computer, and the last software we see when the computer is turned off. – It's the software that enables all the programs we use. The operating system organizes and controls the hardware on our desks and in our hands, – yet most users can't say w ...
... – It is the first software we see when we turn on the computer, and the last software we see when the computer is turned off. – It's the software that enables all the programs we use. The operating system organizes and controls the hardware on our desks and in our hands, – yet most users can't say w ...
Hassan Al-Makso`s presentation on Making OS Reliable and Secure
... 55 percent of the nonfatal ones Drivers can execute privileged instructions they should not Execute The Nooks team had to write large numbers of wrappers manually, and they could contain faults ...
... 55 percent of the nonfatal ones Drivers can execute privileged instructions they should not Execute The Nooks team had to write large numbers of wrappers manually, and they could contain faults ...
What is Operating System, Kernel and Types of kernels
... This architecture majorly caters to the problem of ever growing size of kernel code which we could not control in the monolithic approach. This architecture allows some basic services like device driver management, protocol stack, file system etc to run in user space. This reduces the kernel code si ...
... This architecture majorly caters to the problem of ever growing size of kernel code which we could not control in the monolithic approach. This architecture allows some basic services like device driver management, protocol stack, file system etc to run in user space. This reduces the kernel code si ...
Ceng 334 - Operating Systems
... • Operating Systems (Second Edition), William Stallings, Prentice-Hall, ...
... • Operating Systems (Second Edition), William Stallings, Prentice-Hall, ...
CS 377: Operating Systems Outline
... • Linux is a multiuser, multitasking operating system with a full set of UNIXcompatible tools • Its file system adheres to traditional UNIX semantics, and it fully implements the standard UNIX networking model • Main design goals are speed, efficiency, and standardization ...
... • Linux is a multiuser, multitasking operating system with a full set of UNIXcompatible tools • Its file system adheres to traditional UNIX semantics, and it fully implements the standard UNIX networking model • Main design goals are speed, efficiency, and standardization ...
PowerPoint
... • Head of the tree (-current) is now FreeBSD 6.0 • When 4.0 came out, a branch was created for “4-STABLE” and minor releases up to 4.10 happened every 4 months. • These minor releases (4.1, 4.2, etc) consist of bug fixes backported from -current, and new features in -current that have been extensive ...
... • Head of the tree (-current) is now FreeBSD 6.0 • When 4.0 came out, a branch was created for “4-STABLE” and minor releases up to 4.10 happened every 4 months. • These minor releases (4.1, 4.2, etc) consist of bug fixes backported from -current, and new features in -current that have been extensive ...
HDD for Operating System Concepts
... Education and Research Department, Infosys Technologies Limited. This document is not for general distribution and is meant for use only for the person they are specifically issued to. This document shall not be loaned to anyone, within or outside Infosys, including its customers. Copying or unautho ...
... Education and Research Department, Infosys Technologies Limited. This document is not for general distribution and is meant for use only for the person they are specifically issued to. This document shall not be loaned to anyone, within or outside Infosys, including its customers. Copying or unautho ...
2.01 - Faculty of Computer Science and Information Technology
... Apple Mac OS X as “Aqua” GUI interface with UNIX kernel underneath and shells available ...
... Apple Mac OS X as “Aqua” GUI interface with UNIX kernel underneath and shells available ...
UNICOS, FORTRAN 90, NQS
... • When it comes to solving real-world problems, leading-edge hardware is only part of the solution. A complete solution also requires a powerful and efficient operating system. Today’s de facto standard for high-performance computing is the UNIX operating system. ...
... • When it comes to solving real-world problems, leading-edge hardware is only part of the solution. A complete solution also requires a powerful and efficient operating system. Today’s de facto standard for high-performance computing is the UNIX operating system. ...
Ch01 - Mathematics and Computer Science
... Answers will vary. The GPL stands for the GNU Public License and allows Open Source Software such as Linux to be freely available and improved for an indefinite period of time. The Open Source business model is different from conventional software; the value of software is based on its use and its u ...
... Answers will vary. The GPL stands for the GNU Public License and allows Open Source Software such as Linux to be freely available and improved for an indefinite period of time. The Open Source business model is different from conventional software; the value of software is based on its use and its u ...
Operating Systems Introduction
... Easier to port to different hardware platforms. Less depends on hardware ...
... Easier to port to different hardware platforms. Less depends on hardware ...
Chorusamoeba
... 2. Pool of processors which are dynamically allocated to users as required. 3. Specialized servers: file, directory, database, etc. 4. These components were connected to each other by a fast LAN, and to the wide area network by a gateway. ...
... 2. Pool of processors which are dynamically allocated to users as required. 3. Specialized servers: file, directory, database, etc. 4. These components were connected to each other by a fast LAN, and to the wide area network by a gateway. ...
Unit-5 - Ipemgzb.ac.in
... corresponding almost exclusively over the Internet. It has been designed to run efficiently and reliably on common PC hardware, but also runs on a variety of other platforms. The core Linux operating system kernel is entirely original, but it can run much existing free UNIX software, resulting in an ...
... corresponding almost exclusively over the Internet. It has been designed to run efficiently and reliably on common PC hardware, but also runs on a variety of other platforms. The core Linux operating system kernel is entirely original, but it can run much existing free UNIX software, resulting in an ...
ppt - Computer Science
... MIT Exokernel Operating System http://pdos.csail.mit.edu/exo.html Wikipedia: Exokernel http://en.wikipedia.org/wiki/Exokernel Wikipedia: Kernel (computer science) http://en.wikipedia.org/wiki/Kernel_%28computer_science%29 Wikipedia: MicroKernel http://en.wikipedia.org/wiki/Microkernel Wikipe ...
... MIT Exokernel Operating System http://pdos.csail.mit.edu/exo.html Wikipedia: Exokernel http://en.wikipedia.org/wiki/Exokernel Wikipedia: Kernel (computer science) http://en.wikipedia.org/wiki/Kernel_%28computer_science%29 Wikipedia: MicroKernel http://en.wikipedia.org/wiki/Microkernel Wikipe ...
Berkeley Software Distribution
Berkeley Software Distribution (BSD) is a Unix operating system derivative developed and distributed by the Computer Systems Research Group (CSRG) of the University of California, Berkeley, from 1977 to 1995. Today the term ""BSD"" is often used non-specifically to refer to any of the BSD descendants which together form a branch of the family of Unix-like operating systems. Operating systems derived from the original BSD code remain actively developed and widely used.Historically, BSD has been considered a branch of Unix, Berkeley Unix, because it shared the initial codebase and design with the original AT&T Unix operating system. In the 1980s, BSD was widely adopted by vendors of workstation-class systems in the form of proprietary Unix variants such as DEC ULTRIX and Sun Microsystems SunOS. This can be attributed to the ease with which it could be licensed, and the familiarity the founders of many technology companies of the time had with it.Although these proprietary BSD derivatives were largely superseded by the UNIX System V Release 4 and OSF/1 systems in the 1990s (both of which incorporated BSD code and are the basis of other modern Unix systems), later BSD releases provided a basis for several open source development projects, e.g. FreeBSD, OpenBSD, NetBSD, Darwin or PC-BSD, that are ongoing. These, in turn, have been incorporated in whole or in part in modern proprietary operating systems, e.g. the TCP/IP networking code in Windows NT 3.1 and most of the foundation of Apple's OS X and iOS.