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Operating Systems CSLO - Barbara Hecker
... (25 points) Select one of the following essay topics. Write a 2-3 page (double-spaced) essay on your selected topic. You must provide your own writing and cannot include portions cut-n-pasted from the internet or other sources. Topic selections: (Select one) 1. What is an operating system? What func ...
... (25 points) Select one of the following essay topics. Write a 2-3 page (double-spaced) essay on your selected topic. You must provide your own writing and cannot include portions cut-n-pasted from the internet or other sources. Topic selections: (Select one) 1. What is an operating system? What func ...
02_OperatingSystemOverview
... Multitasking • From Windows 2000 on Windows development developed to exploit modern 32-bit and 64-bit microprocessors • Designed for single users who run multiple programs • Main drivers are: – Increased memory and speed of microprocessors – Support for virtual memory ...
... Multitasking • From Windows 2000 on Windows development developed to exploit modern 32-bit and 64-bit microprocessors • Designed for single users who run multiple programs • Main drivers are: – Increased memory and speed of microprocessors – Support for virtual memory ...
System Structures
... Systems programs in C, C++, scripting languages like PERL, Python, shell scripts ...
... Systems programs in C, C++, scripting languages like PERL, Python, shell scripts ...
Chapter 1 Operating System Fundamentals
... PCs and Computer Networks • As desktop computing matured in the workplace, companies installed local-area networks (LANs) to connect desktop PCs so that the PCs could share data and peripherals, such as printers. • A Network operating system (NOS) requires more computing muscle than the desktop cou ...
... PCs and Computer Networks • As desktop computing matured in the workplace, companies installed local-area networks (LANs) to connect desktop PCs so that the PCs could share data and peripherals, such as printers. • A Network operating system (NOS) requires more computing muscle than the desktop cou ...
FILE
... managing source codes and as a way of minimizing build time. Other important tools and utilities such as grep, find, ctags etc will be also taught. [Linux Kernel Internal] Third subject of this lecture is Linux kernel internal. This part begins from the kernel overall architecture, several important ...
... managing source codes and as a way of minimizing build time. Other important tools and utilities such as grep, find, ctags etc will be also taught. [Linux Kernel Internal] Third subject of this lecture is Linux kernel internal. This part begins from the kernel overall architecture, several important ...
Quick History of Open Source
... Unix History • Early ‘60s computers were expensive, minimal memory, single user. Activities were designed to make things easy for the computer • In 1965 MIT, Bell Labs and General Electric Company jointly started building an OS for a large community of users to allow them to share information. This ...
... Unix History • Early ‘60s computers were expensive, minimal memory, single user. Activities were designed to make things easy for the computer • In 1965 MIT, Bell Labs and General Electric Company jointly started building an OS for a large community of users to allow them to share information. This ...
Introduction to the course
... Many OS services are provided by user-level servers e.g. the environmental subsystems. The POSIX subsystem is now called Interix and includes open source programs and libraries (not after Windows 8) ...
... Many OS services are provided by user-level servers e.g. the environmental subsystems. The POSIX subsystem is now called Interix and includes open source programs and libraries (not after Windows 8) ...
Unix
... An OS is software (i.e. a computer program) that manages your computer. Its main jobs are: Manage software Enable interaction with a user Control peripherals (e.g. disk, printer) ...
... An OS is software (i.e. a computer program) that manages your computer. Its main jobs are: Manage software Enable interaction with a user Control peripherals (e.g. disk, printer) ...
The Essence of UNIX and Linux
... • Linux is a UNIX-like operating system – Not written from the traditional UNIX code – Kernel created to look and act like UNIX • Enhancements include the POSIX standards • Linus Torvalds released it free of charge in 1991 ...
... • Linux is a UNIX-like operating system – Not written from the traditional UNIX code – Kernel created to look and act like UNIX • Enhancements include the POSIX standards • Linus Torvalds released it free of charge in 1991 ...
Unix
... An OS is software (i.e. a computer program) that manages your computer. Its main jobs are: Manage software Enable interaction with a user Control peripherals (e.g. disk, printer) ...
... An OS is software (i.e. a computer program) that manages your computer. Its main jobs are: Manage software Enable interaction with a user Control peripherals (e.g. disk, printer) ...
Shin Liu 2/26/2015 Chapter 4 Power Point Answers and Questions 1
... Desktop operating system are four individual systems; Windows, Mac OS, UNIX, and LINUX. Windows, Mac OS, Linux and Chrome OS are all similar because they desktop operating systems, but from different companies. “Windows” is the most popular microcomputer operating system compared to the other operat ...
... Desktop operating system are four individual systems; Windows, Mac OS, UNIX, and LINUX. Windows, Mac OS, Linux and Chrome OS are all similar because they desktop operating systems, but from different companies. “Windows” is the most popular microcomputer operating system compared to the other operat ...
Chapter 1 Operating System Fundamentals - computerscience
... PCs and Computer Networks • As desktop computing matured in the workplace, companies installed local-area networks (LANs) to connect desktop PCs so that the PCs could share data and peripherals, such as printers. • A Network operating system (NOS) requires more computing muscle than the desktop cou ...
... PCs and Computer Networks • As desktop computing matured in the workplace, companies installed local-area networks (LANs) to connect desktop PCs so that the PCs could share data and peripherals, such as printers. • A Network operating system (NOS) requires more computing muscle than the desktop cou ...
Replication, Load-balancing, and QoS
... (CPU, Memory, Disk, Console) Base Operating System (Linux for our class) ...
... (CPU, Memory, Disk, Console) Base Operating System (Linux for our class) ...
Operating Systems I
... A control program the manages all the resources of the computer on which it runs. ...
... A control program the manages all the resources of the computer on which it runs. ...
mac os - WordPress.com
... Multitasking – multiple programs can run at one time. Multi-user – allows more than a single user to work at any ...
... Multitasking – multiple programs can run at one time. Multi-user – allows more than a single user to work at any ...
The Evolution of the Unix Time
... The most serious inconvenience of the implementation of the file system, aside from the lack of path names, was the difficulty of changing its configuration; as mentioned, directories and special files were both made only when the disk was recreated. Installation of a new device was very painful, be ...
... The most serious inconvenience of the implementation of the file system, aside from the lack of path names, was the difficulty of changing its configuration; as mentioned, directories and special files were both made only when the disk was recreated. Installation of a new device was very painful, be ...
The Evolution of the Unix Time-sharing System
... The most interesting thing about this primitive implementation is the degree to which it anticipated themes developed more fully later. True, it could support neither background processes nor shell command files (let alone pipes and filters); but IO redirection (via ‘<’ and ‘>’) was soon there; it i ...
... The most interesting thing about this primitive implementation is the degree to which it anticipated themes developed more fully later. True, it could support neither background processes nor shell command files (let alone pipes and filters); but IO redirection (via ‘<’ and ‘>’) was soon there; it i ...
Mach: A System Software Kernel Abstract
... paging normally available only within an operating system kernel itself. In addition, the virtual memory management subsystem in the Mach kernel is designed to be largely independent of the hardware architecture of the machine it is operating on, thereby simplifying the task of porting Mach to a lar ...
... paging normally available only within an operating system kernel itself. In addition, the virtual memory management subsystem in the Mach kernel is designed to be largely independent of the hardware architecture of the machine it is operating on, thereby simplifying the task of porting Mach to a lar ...
Operating System Structure
... Secondary-Storage Management • Since RAM is volatile and too small to accommodate all data and programs permanently, the computer system must provide secondary storage to back up main memory • Most modern computer systems use disks (or simulated disks) as the primary storage medium, for both progra ...
... Secondary-Storage Management • Since RAM is volatile and too small to accommodate all data and programs permanently, the computer system must provide secondary storage to back up main memory • Most modern computer systems use disks (or simulated disks) as the primary storage medium, for both progra ...
vaibhav1410945.doc
... Linux, is a freely available multitasking and multiuser operating system, is a UNIX derivative available in both "free software" and commercial versions. Linux is a free and open-source operating system developed on August 25, 1991. ...
... Linux, is a freely available multitasking and multiuser operating system, is a UNIX derivative available in both "free software" and commercial versions. Linux is a free and open-source operating system developed on August 25, 1991. ...
Operating Systems
... – Operating System Objectives/Functions – The Evolution of Operating Systems – Major Achievements – Developments Leading to Modern Operating Systems – Microsoft Windows Overview – UNIX Systems – Linux ...
... – Operating System Objectives/Functions – The Evolution of Operating Systems – Major Achievements – Developments Leading to Modern Operating Systems – Microsoft Windows Overview – UNIX Systems – Linux ...
System Call - ShareCourse
... Exact type and amount of information vary according to OS and call Three general methods used to pass parameters to the OS Simplest: pass the parameters in registers In some cases, may be more parameters than registers Parameters stored in a block, or table, in memory, and address of block ...
... Exact type and amount of information vary according to OS and call Three general methods used to pass parameters to the OS Simplest: pass the parameters in registers In some cases, may be more parameters than registers Parameters stored in a block, or table, in memory, and address of block ...
Ch1 Introduction to the Linux Kernel
... The kernel typically resides in an elevated system state compared to normal user applications This includes a protected memory space and full access to the hardware This system state and memory space is collectively referred to as kernel-space ...
... The kernel typically resides in an elevated system state compared to normal user applications This includes a protected memory space and full access to the hardware This system state and memory space is collectively referred to as kernel-space ...
Unix
Unix (all-caps UNIX for the trademark) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties from the late 1970s, leading to a variety of both academic and commercial variants of Unix from vendors such as the University of California, Berkeley (BSD), Microsoft (Xenix), IBM (AIX) and Sun Microsystems (Solaris). AT&T finally sold its rights in Unix to Novell in the early 1990s, which then sold its Unix business to the Santa Cruz Operation (SCO) in 1995, but the UNIX trademark passed to the industry standards consortium The Open Group, which allows the use of the mark for certified operating systems compliant with the Single UNIX Specification (SUS). Among these is Apple's OS X, which is the Unix version with the largest installed base as of 2014.From the power user's or programmer's perspective, Unix systems are characterized by a modular design that is sometimes called the ""Unix philosophy"", meaning that the operating system provides a set of simple tools that each perform a limited, well-defined function, with a unified filesystem as the main means of communication and a shell scripting and command language to combine the tools to perform complex workflows. Aside from the modular design, Unix also distinguishes itself from its predecessors as the first portable operating system: almost the entire operating system is written in the C programming language that allowed Unix to reach numerous platforms.Many clones of Unix have arisen over the years, of which Linux is the most popular, having overtaken the popularity of SUS-certified Unices on server platforms since its inception in the early 1990s.