Embedded Operating Systems and Linux
... • Advanced OOP features can cause code bloat • C++ compilers can generate many routines for a single function • Virtual methods and polymorphism slow program ...
... • Advanced OOP features can cause code bloat • C++ compilers can generate many routines for a single function • Virtual methods and polymorphism slow program ...
BIOS (Basic Input Output Service)
... (Disk Operating System) Fundamentals • Consisted of two parts The BIOS itself is one part of the operating system. The other part consists of the operating system program files. – Program files consist of • Utilities • A kernel that is loaded into the main memory when the computer boots. ...
... (Disk Operating System) Fundamentals • Consisted of two parts The BIOS itself is one part of the operating system. The other part consists of the operating system program files. – Program files consist of • Utilities • A kernel that is loaded into the main memory when the computer boots. ...
What is an operating system?
... Kernel is the supervisor program that manage the memory and devices Kernel is loaded into the memory from the hard disk (or other storage) during booting until computer is turned off It is known as memory resident (because it resides in memory as long as the power is on. Non-resident are other progr ...
... Kernel is the supervisor program that manage the memory and devices Kernel is loaded into the memory from the hard disk (or other storage) during booting until computer is turned off It is known as memory resident (because it resides in memory as long as the power is on. Non-resident are other progr ...
Conclusion - PC poradna
... aswndis2.sys (avast! Filtering NDIS driver, AVAST Software) If no updates for these drivers are available, try searching with Google on the names of these drivers in combination the errors that have been reported for these drivers and include the brand and model name of your computer as well in the ...
... aswndis2.sys (avast! Filtering NDIS driver, AVAST Software) If no updates for these drivers are available, try searching with Google on the names of these drivers in combination the errors that have been reported for these drivers and include the brand and model name of your computer as well in the ...
CS211 Slides
... – They are used so often that they become a part of Unix – “elm” and “pine” are Unix utilities, for example ...
... – They are used so often that they become a part of Unix – “elm” and “pine” are Unix utilities, for example ...
sample unformatted document
... The first microcomputers did not have the capacity or need for the elaborate operating systems that had been developed for mainframes and minis; minimalistic operating systems were developed, often loaded from ROM and known as monitors. One notable early disk operating system was CP/M, which was sup ...
... The first microcomputers did not have the capacity or need for the elaborate operating systems that had been developed for mainframes and minis; minimalistic operating systems were developed, often loaded from ROM and known as monitors. One notable early disk operating system was CP/M, which was sup ...
The Operating System
... For billing For usage statistics (later used for tuning and development of mechanisms) Protection and security - concurrent processes should not interfere with each other ...
... For billing For usage statistics (later used for tuning and development of mechanisms) Protection and security - concurrent processes should not interfere with each other ...
Computer Science - Rainhill High School
... Be able to describe what is meant by an operating system and know the names of a range of operating systems Be able to explain the main features of an operating system and be able to identify some common similarities and differences between operating systems Understand the difference between proprie ...
... Be able to describe what is meant by an operating system and know the names of a range of operating systems Be able to explain the main features of an operating system and be able to identify some common similarities and differences between operating systems Understand the difference between proprie ...
slides
... No. User-mode code does not have permission to access the kernel’s address space. If it tries, the hardware raises an exception, which is safely handled by the OS More generally, no user mode code should ever be a security vulnerability. Unless the OS has a bug… ...
... No. User-mode code does not have permission to access the kernel’s address space. If it tries, the hardware raises an exception, which is safely handled by the OS More generally, no user mode code should ever be a security vulnerability. Unless the OS has a bug… ...
OSCE Chapter 1. - UCSB Computer Science
... such that all CPUs have the most recent value in their cache. Distributed environment situation even more complex ...
... such that all CPUs have the most recent value in their cache. Distributed environment situation even more complex ...
Abstract View of System Components
... standby mode while the other is running the applications. The hot standby host (machine) does nothing but monitor the active server. If that server fails, the hot standby host becomes the active server. In symmetric mode, two or more hosts are running ...
... standby mode while the other is running the applications. The hot standby host (machine) does nothing but monitor the active server. If that server fails, the hot standby host becomes the active server. In symmetric mode, two or more hosts are running ...
Chapter 1 - Introduction
... An operating system is a program (or set of programs) that manages the computer hardware It also provides a basis for running application programs and acts as an intermediary between the computer user and the computer hardware Some operating systems are designed to be convenient, others are designed ...
... An operating system is a program (or set of programs) that manages the computer hardware It also provides a basis for running application programs and acts as an intermediary between the computer user and the computer hardware Some operating systems are designed to be convenient, others are designed ...
Chapter 2: Operating-System Structures
... 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 ...
9781439079201_PPT_ch01
... – No standard operating system software – Typical program included every instruction needed by the computer to perform the tasks requested – Poor machine utilization • CPU processed data and performed calculations for fraction of available time ...
... – No standard operating system software – Typical program included every instruction needed by the computer to perform the tasks requested – Poor machine utilization • CPU processed data and performed calculations for fraction of available time ...
Microkernels
... Constructing Address Spaces grant: remove page from your address space and give to another consenting process. map: share page with another process. demap: remove page from all other processes that received it directly or indirectly from demapper. ...
... Constructing Address Spaces grant: remove page from your address space and give to another consenting process. map: share page with another process. demap: remove page from all other processes that received it directly or indirectly from demapper. ...
Introduction
... • UNIX variants -- have evolved since 1970 • Windows variants • Research OS -- still evolving We use Linux as main example in this course ...
... • UNIX variants -- have evolved since 1970 • Windows variants • Research OS -- still evolving We use Linux as main example in this course ...
Chapter 1
... – No standard operating system software – Typical program included every instruction needed by the computer to perform the tasks requested – Poor machine utilization • CPU processed data and performed calculations for fraction of available time ...
... – No standard operating system software – Typical program included every instruction needed by the computer to perform the tasks requested – Poor machine utilization • CPU processed data and performed calculations for fraction of available time ...
Threads
... API specifies behavior of the thread library, implementation is up to development of the library. Common in UNIX operating systems. ...
... API specifies behavior of the thread library, implementation is up to development of the library. Common in UNIX operating systems. ...
Lecture 3
... user space to kernel space. This method has been using in all following versions of Windows – 2000, XP, Vista) ...
... user space to kernel space. This method has been using in all following versions of Windows – 2000, XP, Vista) ...
ch12
... – Verifying all computers are patched correctly and perform fundamental tasks as expected – Verifying no users had unauthorized versions of software on computers and thus ineligible for patch – Verifying no users left with unpatched software on ...
... – Verifying all computers are patched correctly and perform fundamental tasks as expected – Verifying no users had unauthorized versions of software on computers and thus ineligible for patch – Verifying no users left with unpatched software on ...
MODERN OPERATING SYSTEMS Third Edition ANDREW S. …
... Features common to removable media: 1. All devices must be inserted and removed. 2. All removable media can be removed ‘‘hot,’’ that is, while being used. 3. Each medium can report its capabilities. 4. Incompatible cards must be rejected. 5. Each card needs power. Tanenbaum, Modern Operating Systems ...
... Features common to removable media: 1. All devices must be inserted and removed. 2. All removable media can be removed ‘‘hot,’’ that is, while being used. 3. Each medium can report its capabilities. 4. Incompatible cards must be rejected. 5. Each card needs power. Tanenbaum, Modern Operating Systems ...
How do Users and Processes interact with the Operating System
... Modular Kernel Most modern operating systems implement kernel modules Uses object-oriented–like approach Each core component is separate Each talks to the others over known interfaces Each is loadable as needed within the kernel, so you could download a new device driver for your OS and load it at r ...
... Modular Kernel Most modern operating systems implement kernel modules Uses object-oriented–like approach Each core component is separate Each talks to the others over known interfaces Each is loadable as needed within the kernel, so you could download a new device driver for your OS and load it at r ...
Chrome OS ppt
... Google Chrome OS is an open source, lightweight operating system that will initially be targeted at netbooks” "most of the user experience takes place on the web.“ Underneath lies security architecture that's completely redesigned to be virus-resistant and easy to update ...
... Google Chrome OS is an open source, lightweight operating system that will initially be targeted at netbooks” "most of the user experience takes place on the web.“ Underneath lies security architecture that's completely redesigned to be virus-resistant and easy to update ...
