Introduction to Linux
... freeware product called Minix were written by Andrew S. Tanenbaum. Developed by Andrew S.Tanenbaum, Minix was a clone of the commercial UNIX operating system. Linux version 0.02, released on October 5, 1991, consisted of only the Linux kernel and three utilities: ■ bash : a command-line interface ■ ...
... freeware product called Minix were written by Andrew S. Tanenbaum. Developed by Andrew S.Tanenbaum, Minix was a clone of the commercial UNIX operating system. Linux version 0.02, released on October 5, 1991, consisted of only the Linux kernel and three utilities: ■ bash : a command-line interface ■ ...
Using Linux Kernel Modules For Operating Systems Class Projects
... Kernel Module Programming Guide,1 which is available on the Internet. Based on information available in the Linux Kernel Module Programming Guide, a device driver lab was also developed. For the second semester that the course was offered, in the fall 2005 semester, it was decided to take advantage ...
... Kernel Module Programming Guide,1 which is available on the Internet. Based on information available in the Linux Kernel Module Programming Guide, a device driver lab was also developed. For the second semester that the course was offered, in the fall 2005 semester, it was decided to take advantage ...
PPTX - Duke Computer Science
... The open process architecture Processes debuted, circa 1965, as a recognized operating system abstraction in Multics [48]....Today, this architecture—which we call the open process architecture—is nearly universal. Although aspects of this architecture, such as dynamic code loading and shared memor ...
... The open process architecture Processes debuted, circa 1965, as a recognized operating system abstraction in Multics [48]....Today, this architecture—which we call the open process architecture—is nearly universal. Although aspects of this architecture, such as dynamic code loading and shared memor ...
6up-pdf - ETH Systems Group
... Load SP for this process’ kernel stack Create a C stack frame on the kernel stack Look up the syscall number in a jump table Call the function (e.g. read(), getpid(), open(), etc.) ...
... Load SP for this process’ kernel stack Create a C stack frame on the kernel stack Look up the syscall number in a jump table Call the function (e.g. read(), getpid(), open(), etc.) ...
Kernel
... – memory resident part of UNIX – majority written in C rest in assembler language (HW dependent, speed) – a.out (a plain C a.out program) – consists of functions • other programs can call (some of) these functions • called “system call function” ...
... – memory resident part of UNIX – majority written in C rest in assembler language (HW dependent, speed) – a.out (a plain C a.out program) – consists of functions • other programs can call (some of) these functions • called “system call function” ...
슬라이드 1
... the GNU project, Linux was ready for the actual showdown. It was licensed under GNU General Public License, thus ensuring that the source codes will be free for all to copy, study and to change. Students and computer programmers grabbed it. Soon, commercial vendors moved in. Linux itself was, and is ...
... the GNU project, Linux was ready for the actual showdown. It was licensed under GNU General Public License, thus ensuring that the source codes will be free for all to copy, study and to change. Students and computer programmers grabbed it. Soon, commercial vendors moved in. Linux itself was, and is ...
Linux Operations and Administration
... – Software distributed with its source code – Users can view or modify it ...
... – Software distributed with its source code – Users can view or modify it ...
μ-kernels Advantages Disadvantages Primitives in a μ
... The µ-kernel design is extensively depending on the CPU structure. The only µ-kernel feature that can be portable is the scheduler. Large monolithic kernel can have many more portable features. In the early 70's, large portions of the kernel have been started to be written in C, so they could be por ...
... The µ-kernel design is extensively depending on the CPU structure. The only µ-kernel feature that can be portable is the scheduler. Large monolithic kernel can have many more portable features. In the early 70's, large portions of the kernel have been started to be written in C, so they could be por ...
slides - Caltech
... • Example: add support for a new device to monolithic OS • Must add the device driver to the kernel’s code-base, then recompile the entire kernel • Leads to several problems: • Kernel becomes huge, because it must include compiled-in support for all supported devices, filesystems, etc. • More code = ...
... • Example: add support for a new device to monolithic OS • Must add the device driver to the kernel’s code-base, then recompile the entire kernel • Leads to several problems: • Kernel becomes huge, because it must include compiled-in support for all supported devices, filesystems, etc. • More code = ...
Introduction to Operating Systems
... Unix rewritten in C programming language (1974) Unix utility programs written by students at colleges and universities (continues today) Unix used to share research and data (foundation of the Internet and the WWW) Linus Torvalds orchestrated development of an operating system based on Unix, but abl ...
... Unix rewritten in C programming language (1974) Unix utility programs written by students at colleges and universities (continues today) Unix used to share research and data (foundation of the Internet and the WWW) Linus Torvalds orchestrated development of an operating system based on Unix, but abl ...
What is GNU/Linux?
... The Linux Documentation Project provide HOWTOs and Guides to accomplish many Linux specific tasks. Linux runs on a wide range of processors from embedded devices such as cell phones to supercomputers employing Linux clusters. One estimate from Forbes.com estimates that 60% of the worlds top 500 ...
... The Linux Documentation Project provide HOWTOs and Guides to accomplish many Linux specific tasks. Linux runs on a wide range of processors from embedded devices such as cell phones to supercomputers employing Linux clusters. One estimate from Forbes.com estimates that 60% of the worlds top 500 ...
Slides - Winlab
... • 1970: First Unix Grown – Not the first but one of the first – Born at AT&T ...
... • 1970: First Unix Grown – Not the first but one of the first – Born at AT&T ...
Linus Torvalds - cs.helsinki.fi
... developed into an operating system which was based on both MINIX and UNIX. On August 25, 1991, he announced his initial creation on the Minix newsgroup comp.os.minix as follows: Hello, everybody out there using minix- I’m doing a (free) operating system (just a hobby, won’t be big and professional l ...
... developed into an operating system which was based on both MINIX and UNIX. On August 25, 1991, he announced his initial creation on the Minix newsgroup comp.os.minix as follows: Hello, everybody out there using minix- I’m doing a (free) operating system (just a hobby, won’t be big and professional l ...
2. Operating System Case Study: Linux
... for minicomputer for commercial applications People was looking for a UNIX based system, which i cheaper is h and d can run on PC Both DOS, MAC and UNIX are proprietary, i.e., the protected source code of their kernel is p – No modification is possible without paying high license fees ...
... for minicomputer for commercial applications People was looking for a UNIX based system, which i cheaper is h and d can run on PC Both DOS, MAC and UNIX are proprietary, i.e., the protected source code of their kernel is p – No modification is possible without paying high license fees ...
Support Notes for SUSE LINUX Enterprise Servers HP Part Number: 5900-0402
... Do not run the "Test X Configuration" when installing the system. It triggers the start of a second X server, which when saving or restoring fonts causes an MCA. Upon completion of installation, the user should upgrade the xorg-x11-server package by either downloading the recommended update from the ...
... Do not run the "Test X Configuration" when installing the system. It triggers the start of a second X server, which when saving or restoring fonts causes an MCA. Upon completion of installation, the user should upgrade the xorg-x11-server package by either downloading the recommended update from the ...
Monolithic kernel vs. Microkernel
... introduced, which allows independent communication and favours extensibility (see 2.1 for more details). Currently, there are two different generations of µ-kernels. The first generation was a more or less a stripped-down monolithic kernel. Because of performance drawbacks concerning process communi ...
... introduced, which allows independent communication and favours extensibility (see 2.1 for more details). Currently, there are two different generations of µ-kernels. The first generation was a more or less a stripped-down monolithic kernel. Because of performance drawbacks concerning process communi ...
Cosc513-11 operating systems LINUX
... Red Hat believes that the hardware on these lists operates correctly with Red Hat Linux but because there are an infinite variety of computer system configurations and the manufacturing specifications and components of hardware change, Red Hat cannot guarantee compatibility with any hardware ...
... Red Hat believes that the hardware on these lists operates correctly with Red Hat Linux but because there are an infinite variety of computer system configurations and the manufacturing specifications and components of hardware change, Red Hat cannot guarantee compatibility with any hardware ...
PowerPoint 簡報
... switches to kernel mode only when requesting a service provided by it. When the kernel satisfied the request, it puts the process back in user mode. ...
... switches to kernel mode only when requesting a service provided by it. When the kernel satisfied the request, it puts the process back in user mode. ...
slides - Computer Science
... Enables trusted audit and control of physical devices without stopping and restarting applications, Allows unmodified commodity OSes to have unfettered access to all hardware resources and preserve the entire application ecosystem unchanged Offers a significant opportunity for the reduction of the tru ...
... Enables trusted audit and control of physical devices without stopping and restarting applications, Allows unmodified commodity OSes to have unfettered access to all hardware resources and preserve the entire application ecosystem unchanged Offers a significant opportunity for the reduction of the tru ...
Blackfin操作系统及应用
... Several Vendors are working on Real-Time solutions: z MontaVista has a Real-Time kernel that they are trying to get accepted by the Linux Community. z RTLinux provides a Real-Time kernel uses Linux a thread of the Real-Time OS. z Lineo has implemented the Real Time Application Interface (RTAI) for L ...
... Several Vendors are working on Real-Time solutions: z MontaVista has a Real-Time kernel that they are trying to get accepted by the Linux Community. z RTLinux provides a Real-Time kernel uses Linux a thread of the Real-Time OS. z Lineo has implemented the Real Time Application Interface (RTAI) for L ...
Lecture 15 - Department of Math and Computer Science
... * silly_copy - utterly worthless syscall that copies the len bytes from * 'src' to 'dst' using the kernel as an intermediary in the copy for no * good reason. But it i makes for a good example! ...
... * silly_copy - utterly worthless syscall that copies the len bytes from * 'src' to 'dst' using the kernel as an intermediary in the copy for no * good reason. But it i makes for a good example! ...
PPT - Defcon
... attacker to allow/deny actions • Looks just like the hooks rootkits use (dual technology) ...
... attacker to allow/deny actions • Looks just like the hooks rootkits use (dual technology) ...
Total cost of ownership – Linux vs. QNX realtime operating system
... Linux's TCO. A better way to think about it is that Linux is free like a free puppy. Anyone who has a dog knows the never-ending expenses that pet ownership can entail, from veterinarian bills to food costs to the time invested for training — together, these represent the true total cost of ownershi ...
... Linux's TCO. A better way to think about it is that Linux is free like a free puppy. Anyone who has a dog knows the never-ending expenses that pet ownership can entail, from veterinarian bills to food costs to the time invested for training — together, these represent the true total cost of ownershi ...
Linux kernel
The Linux kernel is a Unix-like computer operating system kernel. It is widely used world-wide; the Linux operating system is based on it and deployed on both traditional computer systems such as personal computers and servers, usually in the form of Linux distributions, and on various embedded devices such as routers and NAS appliances. The Android operating system for tablet computers, smartphones and smartwatches is also based atop the Linux kernel.The Linux kernel was initially conceived and created in 1991 by Finnish computer science student Linus Torvalds, for his personal computer and with no cross-platform intentions, but has since expanded to support a huge array of computer architectures, many more than other operating systems or kernels. Linux rapidly attracted developers and users who adapted code from other free software projects for use with the new operating system. The Linux kernel has received contributions from nearly 12,000 programmers from more than 1,200 companies, including some of the largest software and hardware vendors.The Linux kernel API, the application programming interface (API) through which user programs interact with the kernel, is meant to be very stable and to not break userspace programs (some programs, such as those with GUIs, rely on other APIs as well). As part of the kernel's functionality, device drivers control the hardware; ""mainlined"" device drivers are also meant to be very stable. However, the interface between the kernel and loadable kernel modules (LKMs), unlike in many other kernels and operating systems, is not meant to be very stable by design.The Linux kernel, developed by contributors worldwide, is a prominent example of free and open source software. Day-to-day development discussions take place on the Linux kernel mailing list (LKML). The Linux kernel is released under the GNU General Public License version 2 (GPLv2), with some firmware images released under various non-free licenses.