ICS 143 - Introduction to Operating Systems
... ◦ Understand interaction between the hardware and software ◦ Understand basic principles in the design of computer systems Resource management, security, portability, flexibility ◦ Increasing need for specialized OS Operating systems for embedded devices such as cell phones, sensors, and actuat ...
... ◦ Understand interaction between the hardware and software ◦ Understand basic principles in the design of computer systems Resource management, security, portability, flexibility ◦ Increasing need for specialized OS Operating systems for embedded devices such as cell phones, sensors, and actuat ...
Chapter 2 Operating System Overview
... to communicate via RPCs • Provides base for distributed computing ...
... to communicate via RPCs • Provides base for distributed computing ...
Mgt 20600: IT Management
... Price/Performance gap between laptops and desktops has narrowed considerably Availability of workstation-class laptops for computing intensive tasks like software development and computer-aided design – Laptop reliability has improved ...
... Price/Performance gap between laptops and desktops has narrowed considerably Availability of workstation-class laptops for computing intensive tasks like software development and computer-aided design – Laptop reliability has improved ...
LECTURE 33 APPLICATION I/O INTERFACE
... Memory-mapped (to VM) file access possible - use memory instructions rather than I/O instructions - very efficient (ex: swap space for disk). Device driver xfr’s blocks at a time - as in paging DMA transfer is block oriented Character devices include keyboards, mice, serial ports Device dr ...
... Memory-mapped (to VM) file access possible - use memory instructions rather than I/O instructions - very efficient (ex: swap space for disk). Device driver xfr’s blocks at a time - as in paging DMA transfer is block oriented Character devices include keyboards, mice, serial ports Device dr ...
The Operating System The Operating System of the computer is a
... Throughout the history of computers, the operating systems have continuously evolved as the needs of the users and the capabilities of the computer system changes. The earliest computers were mainframe that had no form of an operating system. In the first generation of computers, programs were ente ...
... Throughout the history of computers, the operating systems have continuously evolved as the needs of the users and the capabilities of the computer system changes. The earliest computers were mainframe that had no form of an operating system. In the first generation of computers, programs were ente ...
System Software and Operating Systems
... program the user wants executed Modern operating systems are multi-tasking in that they execute two or more applications running simultaneously (actually they switch back and forth between the applications) Older single-tasking operating systems could only do one thing at a time ...
... program the user wants executed Modern operating systems are multi-tasking in that they execute two or more applications running simultaneously (actually they switch back and forth between the applications) Older single-tasking operating systems could only do one thing at a time ...
Operating System Services
... Security of the system from outsiders requires user authentication, extends to defending external I/O devices from invalid access attempts If a system is to be protected and secure, precautions must be instituted throughout it. A chain is only as strong as its weakest link. ...
... Security of the system from outsiders requires user authentication, extends to defending external I/O devices from invalid access attempts If a system is to be protected and secure, precautions must be instituted throughout it. A chain is only as strong as its weakest link. ...
Slide 1
... Linux is an operating system developed by Linus Torvalds in 1991 when he was a student at the University of Helsinki in Finland. Linux was released to the public as open source software; that is, a program whose source code is available to the public and can be modified to improve it or to custom ...
... Linux is an operating system developed by Linus Torvalds in 1991 when he was a student at the University of Helsinki in Finland. Linux was released to the public as open source software; that is, a program whose source code is available to the public and can be modified to improve it or to custom ...
System Software and Operating Systems
... program the user wants executed Modern operating systems are multi-tasking in that they execute two or more applications running simultaneously (actually they switch back and forth between the applications) Older single-tasking operating systems could only do one thing at a time ...
... program the user wants executed Modern operating systems are multi-tasking in that they execute two or more applications running simultaneously (actually they switch back and forth between the applications) Older single-tasking operating systems could only do one thing at a time ...
Lecture_01
... Standard for parallel and high performance computing (Beowulf clusters). Available for most computers, including PDA, supports graphical user interfaces, networking, and has many applications. ...
... Standard for parallel and high performance computing (Beowulf clusters). Available for most computers, including PDA, supports graphical user interfaces, networking, and has many applications. ...
Word Processors
... communicate with all hardware devices attached to the computer, A device driver are instructions for the OS on how to communicate with each device, In order for a piece of hardware to work properly its own driver needs installing – it also must be the correct version for the operating system you are ...
... communicate with all hardware devices attached to the computer, A device driver are instructions for the OS on how to communicate with each device, In order for a piece of hardware to work properly its own driver needs installing – it also must be the correct version for the operating system you are ...
Operating Systems Course Outline
... Rationale: Operating systems are central to computing activities. An operating system is a program that acts as an intermediary between a user of a computer and the computer hardware. Two primary aims of an operating systems are to manage resources (e.g. CPU time, memory) and to control users and so ...
... Rationale: Operating systems are central to computing activities. An operating system is a program that acts as an intermediary between a user of a computer and the computer hardware. Two primary aims of an operating systems are to manage resources (e.g. CPU time, memory) and to control users and so ...
83-381 Syllabus English
... First Semester 2016/17 Weekly hours: 2 lecture + 1 training 1) Course objectives: An operating system is a set of subsystems/programs that manage a computer system composed of hardware and software resources, providing common services/utilities needed to run system and user applications. All compute ...
... First Semester 2016/17 Weekly hours: 2 lecture + 1 training 1) Course objectives: An operating system is a set of subsystems/programs that manage a computer system composed of hardware and software resources, providing common services/utilities needed to run system and user applications. All compute ...
Presentation: Operating systems
... We covered five of the most important things an operating system does. Without looking back, can you recall what they were? ...
... We covered five of the most important things an operating system does. Without looking back, can you recall what they were? ...
BA471 Management Information Systems
... Compilers convert software (including OS’s) into machine language (0,1) Source Code ...
... Compilers convert software (including OS’s) into machine language (0,1) Source Code ...
Linux+ Guide to Linux Certification
... There is one administrative account that has “all power”. It is called root This account can make changes to the operating system file system, install and upgrade software This account can also delete and change critical system files which can potentially disable the system Linux is literal, and usu ...
... There is one administrative account that has “all power”. It is called root This account can make changes to the operating system file system, install and upgrade software This account can also delete and change critical system files which can potentially disable the system Linux is literal, and usu ...
CSC 150 UNGRADED QUIZ - Concordia University Wisconsin
... A. Definition. An operating system is a master control program which controls all the H/W and other software of a computer system. B. Analogies for an O/S. “General manager,” “traffic cop,” “steward,” “shepherd.” ...
... A. Definition. An operating system is a master control program which controls all the H/W and other software of a computer system. B. Analogies for an O/S. “General manager,” “traffic cop,” “steward,” “shepherd.” ...
Linux Overview
... • Linux is an open source operating system. • Linux is developed collaboratively. • This spreading of development burden amongst individuals and companies has resulted in a large and efficient ecosystem and unheralded software innovation. • Linux, which began its existence as a server OS and has bec ...
... • Linux is an open source operating system. • Linux is developed collaboratively. • This spreading of development burden amongst individuals and companies has resulted in a large and efficient ecosystem and unheralded software innovation. • Linux, which began its existence as a server OS and has bec ...
Enhanced Guide to Managing & Maintaining Your PC, 3e
... interfaces so that high-level software can depend on low-level software to manage the hardware for it Applications software depends on the OS to interface with hardware • Instructs hardware directly • Uses BIOS to provide the instructions • Uses device drivers ...
... interfaces so that high-level software can depend on low-level software to manage the hardware for it Applications software depends on the OS to interface with hardware • Instructs hardware directly • Uses BIOS to provide the instructions • Uses device drivers ...
Components of an operating system
... Components of an operating system An operating system is a software program that provides an interface between the user and the computer and manages thousands of applications. Most computer systems are sold with an operating system installed. Computers that are designed for individual users are call ...
... Components of an operating system An operating system is a software program that provides an interface between the user and the computer and manages thousands of applications. Most computer systems are sold with an operating system installed. Computers that are designed for individual users are call ...
Review Exercise 2
... (d)Control hardware devices (12)Which of the following statement about IP Address/Port is NOT correct? (a)IP address is the unique identification on a computer that is connecting to the Internet. (b)IP address are the input/output locations of a computer where messages should send in or out. (c)If ...
... (d)Control hardware devices (12)Which of the following statement about IP Address/Port is NOT correct? (a)IP address is the unique identification on a computer that is connecting to the Internet. (b)IP address are the input/output locations of a computer where messages should send in or out. (c)If ...
Operating systems
... application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers. The dominan ...
... application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers. The dominan ...
Operating Systems Introduction
... usage) of the computer as needed to solve the problem given. The allocation process should be as fair and efficient as possible. ...
... usage) of the computer as needed to solve the problem given. The allocation process should be as fair and efficient as possible. ...