Chapter 5
... • Operating system combined with the processor is known as a platform – Microsoft Windows/Intel ...
... • Operating system combined with the processor is known as a platform – Microsoft Windows/Intel ...
- Saraswathi Velu College of Engineering
... Loosely coupled systems Tightly coupled systems Each processor has its own local memory Common memory is shared by many processors Each processor can communicate with other all through communication lines No need of any special communication lines 6.What is real time system? A real time system has w ...
... Loosely coupled systems Tightly coupled systems Each processor has its own local memory Common memory is shared by many processors Each processor can communicate with other all through communication lines No need of any special communication lines 6.What is real time system? A real time system has w ...
Computer Software - Welcome to the UNC Department of
... control programs for I/O devices. Painful! • Today, O.S. reads from and writes to the I/O devices: mouse, keyboard, printer, monitor… • About half the instructions in today’s OS are to manage input and output operations. ...
... control programs for I/O devices. Painful! • Today, O.S. reads from and writes to the I/O devices: mouse, keyboard, printer, monitor… • About half the instructions in today’s OS are to manage input and output operations. ...
Low-level design features explain why OS/2 Warp, Windows 95
... virtual address space, 4GB in size. All these components are visible to (and often writable by) each other. At the bottom of this address space, usually below the 1MB mark, are the real-mode device drivers that provide an interface to peripheral subsystems such as video cards or printers. Windows 3. ...
... virtual address space, 4GB in size. All these components are visible to (and often writable by) each other. At the bottom of this address space, usually below the 1MB mark, are the real-mode device drivers that provide an interface to peripheral subsystems such as video cards or printers. Windows 3. ...
files
... Describe how to create a DOS boot disk. Describe the boot process. Describe the relationship of application software, operating systems, BIOS, and system hardware components. Describe the common characteristics of different operating systems. ...
... Describe how to create a DOS boot disk. Describe the boot process. Describe the relationship of application software, operating systems, BIOS, and system hardware components. Describe the common characteristics of different operating systems. ...
lecture8
... Threads with a priority of 31 will be run before any others, while threads with a priority of 0 will run only if no other threads are ready. The range of priorities is divided in half with the upper 16 reserved for real-time threads and the lower 16 reserved for variable priority threads. Real-time ...
... Threads with a priority of 31 will be run before any others, while threads with a priority of 0 will run only if no other threads are ready. The range of priorities is divided in half with the upper 16 reserved for real-time threads and the lower 16 reserved for variable priority threads. Real-time ...
CSR_Ch02_PP.pps
... such as number of files that can be opened. Used in new operating systems to support legacy software applications. ...
... such as number of files that can be opened. Used in new operating systems to support legacy software applications. ...
Windows 95/98/NT (Introduction)
... which does not have any interference from any other programs and can have access to any device when it wants. This is the concept of the Virtual Machine. In Windows 95/98 the Virtual Machine Manager (VMM) provides each application with the system resources when it needs them. It creates and maintain ...
... which does not have any interference from any other programs and can have access to any device when it wants. This is the concept of the Virtual Machine. In Windows 95/98 the Virtual Machine Manager (VMM) provides each application with the system resources when it needs them. It creates and maintain ...
file
... binary format, contain a specific type of information – For example, a file may contain a Java program, a JPEG image, or an MP3 audio clip ...
... binary format, contain a specific type of information – For example, a file may contain a Java program, a JPEG image, or an MP3 audio clip ...
OPERATING SYSTEMS STRUCTURES
... Allocation/de-allocation for processes, files, I/O. Maintenance of several processes at a time Keep track of who's using what memory Movement of process memory to/from secondary storage. FILE MANAGEMENT A file is a collection of related information defined by its creator. Commonly, files rep ...
... Allocation/de-allocation for processes, files, I/O. Maintenance of several processes at a time Keep track of who's using what memory Movement of process memory to/from secondary storage. FILE MANAGEMENT A file is a collection of related information defined by its creator. Commonly, files rep ...
Operating Systems - s3.amazonaws.com
... allocates storage, and presents a default interface to the user when no application program is running. ...
... allocates storage, and presents a default interface to the user when no application program is running. ...
Implementing hard drive.
... The partition is set active when you install OS. It never actually says this in the install. Rest of chapter assume only one primary partition. ...
... The partition is set active when you install OS. It never actually says this in the install. Rest of chapter assume only one primary partition. ...
Operating System
... operating system transfers data and program instructions from hard disk to RAM when they are ...
... operating system transfers data and program instructions from hard disk to RAM when they are ...
Improve Your Windows 7 Registry With 7 Easy Tweaks | PCWorld
... The name of each main key indicates fairly clearly the settings it governs. If you want to tweak a specific piece of hardware in your system, the setting is probably saved in HKLM; settings for your user account usually appear in HKU or HKCU. Before you make any changes to the Registry, update your ...
... The name of each main key indicates fairly clearly the settings it governs. If you want to tweak a specific piece of hardware in your system, the setting is probably saved in HKLM; settings for your user account usually appear in HKU or HKCU. Before you make any changes to the Registry, update your ...
Operating Systems
... • File Compression is the shrinking of a file into a smaller file • In order to use a compressed file, it must be decompressed back to its original size • The file size is controlled by setting a file compression ratio. A file compression ratio determines how small the compressed file will be • WinZ ...
... • File Compression is the shrinking of a file into a smaller file • In order to use a compressed file, it must be decompressed back to its original size • The file size is controlled by setting a file compression ratio. A file compression ratio determines how small the compressed file will be • WinZ ...
BackDoors
... Almost every network service has at one time been backdoored by an intruder. Backdoored versions of finger, rsh, rexec, rlogin, ftp, even inetd, etc., have been floating around forever. There are programs that are nothing more than a shell connected to a TCP port with maybe a backdoor password to ga ...
... Almost every network service has at one time been backdoored by an intruder. Backdoored versions of finger, rsh, rexec, rlogin, ftp, even inetd, etc., have been floating around forever. There are programs that are nothing more than a shell connected to a TCP port with maybe a backdoor password to ga ...
int_unix - Pablo Manalastas, PhD
... PS1 PS2 – primary and secondary prompts HOME – user's home directory LOGNAME – user's login name SHELL – user's shell program ...
... PS1 PS2 – primary and secondary prompts HOME – user's home directory LOGNAME – user's login name SHELL – user's shell program ...
Features Of Sprite Operating System
... • UNIX allows processes to share only code but Sprite allows processes to share both code and heap of a process address space. • Sprite initially loads code and initialized heap pages from object files in the file system. • Because of using high-performance file servers, Sprite file system is fast e ...
... • UNIX allows processes to share only code but Sprite allows processes to share both code and heap of a process address space. • Sprite initially loads code and initialized heap pages from object files in the file system. • Because of using high-performance file servers, Sprite file system is fast e ...
FileSystems
... Can simulate last two with first method by inserting appropriate control characters. Need at least executable binary and data Type indicated by “type” extension Resource fork (Mac) Magic number (UNIX) More complexity requires more OS support ...
... Can simulate last two with first method by inserting appropriate control characters. Need at least executable binary and data Type indicated by “type” extension Resource fork (Mac) Magic number (UNIX) More complexity requires more OS support ...
Slides - Winlab
... Menu.lst -> grub.cfg (not really) User settings go in /etc/grub.d/40_custom Partition numbering has changed. The first partition is now 1 rather than 0. • Automated alternative OF searches from update ...
... Menu.lst -> grub.cfg (not really) User settings go in /etc/grub.d/40_custom Partition numbering has changed. The first partition is now 1 rather than 0. • Automated alternative OF searches from update ...
PPT - DC214
... NT-supplied interrupt dispatcher invokes interrupt service routiner ISR runs in context of interrupted thread ("arbitrary thread context") ISR requests execution of "DPC routine", which also runs in kernel mode ...
... NT-supplied interrupt dispatcher invokes interrupt service routiner ISR runs in context of interrupted thread ("arbitrary thread context") ISR requests execution of "DPC routine", which also runs in kernel mode ...
Charles Petzold, “Windows Programming”
... Second parameter • A program could determine if other instances of itself were running by checking the hPrevInstance parameter. • It could then skip certain chores and move some data from the previous instance into its own data area. • In the 32-bit versions of Windows, this concept has been aband ...
... Second parameter • A program could determine if other instances of itself were running by checking the hPrevInstance parameter. • It could then skip certain chores and move some data from the previous instance into its own data area. • In the 32-bit versions of Windows, this concept has been aband ...
lecture3
... The Linux Booting Process In most cases, the Linux kernel is loaded from a hard disk, and a two-stage boot loader is required. The most commonly used Linux boot loader on Intel systems is named LILO (Linux Loader); corresponding programs exist for other architectures. LILO may be installed either on ...
... The Linux Booting Process In most cases, the Linux kernel is loaded from a hard disk, and a two-stage boot loader is required. The most commonly used Linux boot loader on Intel systems is named LILO (Linux Loader); corresponding programs exist for other architectures. LILO may be installed either on ...
Najwa Knefati Midterm q
... Moore’s Law predicted that the number of transistors on an integrated circuit would double every eighteen months, and that prediction has held true. Computers gained in functionality and shrunk in size, leading to a vast number of uses and a vast number and variety of operating systems. no complet ...
... Moore’s Law predicted that the number of transistors on an integrated circuit would double every eighteen months, and that prediction has held true. Computers gained in functionality and shrunk in size, leading to a vast number of uses and a vast number and variety of operating systems. no complet ...