Chapter 2: OS structure
... Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system ...
... Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system ...
Homework 1
... addressing 1MB of physical memory. The physical address space of an early PC would therefore start at 0x00000000 but end at 0x000FFFFF instead of 0xFFFFFFFF. The 640KB area marked "Low Memory" was the only random-access memory (RAM) that an early PC could use; in fact the very earliest PCs only coul ...
... addressing 1MB of physical memory. The physical address space of an early PC would therefore start at 0x00000000 but end at 0x000FFFFF instead of 0xFFFFFFFF. The 640KB area marked "Low Memory" was the only random-access memory (RAM) that an early PC could use; in fact the very earliest PCs only coul ...
Lecture 1: Course Introduction and Overview
... • Can OS be encoded in ROM/Flash ROM? • Does OS have to be software? – Can it be Hardware? – Custom Chip with predefined behavior – Are these even OSs? ...
... • Can OS be encoded in ROM/Flash ROM? • Does OS have to be software? – Can it be Hardware? – Custom Chip with predefined behavior – Are these even OSs? ...
slides - Caltech
... 4. 512-byte boot sector either loads the OS kernel directly, or it loads a 2nd-stage bootloader that loads the kernel • e.g. LILO, GRUB, Windows NTLDR, etc. ...
... 4. 512-byte boot sector either loads the OS kernel directly, or it loads a 2nd-stage bootloader that loads the kernel • e.g. LILO, GRUB, Windows NTLDR, etc. ...
ch02
... Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system ...
... Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system ...
system programs
... The kernal module interface allows third parties to write and distribute, on their own terms, device drivers or file systems that could not be distributed under the GPL. Kernel modules allow a Linux system to be set up with a standard, minimal kernel, without any extra device drivers built in. Linux ...
... The kernal module interface allows third parties to write and distribute, on their own terms, device drivers or file systems that could not be distributed under the GPL. Kernel modules allow a Linux system to be set up with a standard, minimal kernel, without any extra device drivers built in. Linux ...
WHAT IS THE DOS BOOT SEQUENCE??
... with the file hall.dll. NTLDR will also read the SYSTEM registry key into memory, and select the hardware configuration and control set (from the Registry) that will be used for this boot. If you have more than one hardware profile created, you could select it at this point in the boot sequence. NTL ...
... with the file hall.dll. NTLDR will also read the SYSTEM registry key into memory, and select the hardware configuration and control set (from the Registry) that will be used for this boot. If you have more than one hardware profile created, you could select it at this point in the boot sequence. NTL ...
CS 519: Operating System Theory
... Transfer between caches and main memory is performed in units called cache blocks/lines Caches contain also the value of memory locations which are close to locations which were recently accessed (spatial locality) ...
... Transfer between caches and main memory is performed in units called cache blocks/lines Caches contain also the value of memory locations which are close to locations which were recently accessed (spatial locality) ...
2.01 - Czech Technical University in Prague
... Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system ...
... Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system ...
Lecture4
... Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system ...
... Debugging facilities can greatly enhance the user’s and programmer’s abilities to efficiently use the system ...
Kernel - Duke University
... of execution within the same address space. – Create a context for a new thread with makecontext. – Modify saved contexts at will. – Context switch with swapcontext: transfer a core from one thread to another (“change drivers”) ...
... of execution within the same address space. – Create a context for a new thread with makecontext. – Modify saved contexts at will. – Context switch with swapcontext: transfer a core from one thread to another (“change drivers”) ...
Dealing with Meory Constraints under SAS 6.04 for DOS and Moving to 6.06 under OS/2
... set up in a variety of ways. Since SAS uses LIM expanded RAM (also referred to as EMS), DOS S.O's IDMEM.SYS extended memory driver can be used to run the EMM386.EXE Expanded memory driver (third party drivers such as 386MAX or QEMM386 could also be used). This will allow for the use of the expanded ...
... set up in a variety of ways. Since SAS uses LIM expanded RAM (also referred to as EMS), DOS S.O's IDMEM.SYS extended memory driver can be used to run the EMM386.EXE Expanded memory driver (third party drivers such as 386MAX or QEMM386 could also be used). This will allow for the use of the expanded ...
kubi-cs162f05lec01
... • Can OS be encoded in ROM/Flash ROM? • Does OS have to be software? – Can it be Hardware? – Custom Chip with predefined behavior – Are these even OSs? ...
... • Can OS be encoded in ROM/Flash ROM? • Does OS have to be software? – Can it be Hardware? – Custom Chip with predefined behavior – Are these even OSs? ...
ppt - Computer Science Division
... • Can OS be encoded in ROM/Flash ROM? • Does OS have to be software? – Can it be Hardware? – Custom Chip with predefined behavior – Are these even OSs? ...
... • Can OS be encoded in ROM/Flash ROM? • Does OS have to be software? – Can it be Hardware? – Custom Chip with predefined behavior – Are these even OSs? ...
ppt
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
Protection of user process data in a secure platform architecture
... platform. An end user application is stored in the memory for controlling the processor and the memory, and operates on top of the operating system image. The secure platform is con?gured to provide a secure partition Within the memory for storing secret data associated With and acces sible by the e ...
... platform. An end user application is stored in the memory for controlling the processor and the memory, and operates on top of the operating system image. The secure platform is con?gured to provide a secure partition Within the memory for storing secret data associated With and acces sible by the e ...
Operating-System Structures
... 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 p ...
... 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 p ...
Chapter 3: Operating-System Structures Common System
... secondary storage to back up main memory. ■ Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. ■ The operating system is responsible for the following activities in connection with disk management: ✦ Free space management ✦ Storage allocation ...
... secondary storage to back up main memory. ■ Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. ■ The operating system is responsible for the following activities in connection with disk management: ✦ Free space management ✦ Storage allocation ...
Module 3: Operating
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
View
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
... secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The operating system is responsible for the following activities in connection with disk management: Free space management Storage allocation ...
UNIX Operating System
... “Initializing” or “booting” the machine The I/O routines on the BIOS continue the boot process by reading Track 0, Sector 1 of the hard disk. This is the location of the Master Boot Record (MBR). The size of the MBR is 512 bytes. The MBR contains the disk partition tables, and executable code which ...
... “Initializing” or “booting” the machine The I/O routines on the BIOS continue the boot process by reading Track 0, Sector 1 of the hard disk. This is the location of the Master Boot Record (MBR). The size of the MBR is 512 bytes. The MBR contains the disk partition tables, and executable code which ...
2.01 - Tamkang University
... in a multiuser or networked computer system may want to control use of that information, concurrent processes should not interfere with each other ...
... in a multiuser or networked computer system may want to control use of that information, concurrent processes should not interfere with each other ...
Acorn MOS
Acorn's Machine Operating System (MOS) or OS was a computer operating system used in the Acorn BBC computer range. It included support for four-channel sound and graphics, file system abstraction, and digital and analogue I/O including a daisy-chained fast expansion bus. The implementation was single-tasking, monolithic and non-reentrant.Versions 0.10 to 1.20 were used on the BBC Micro, version 1.00 on the Electron, version 2 was used on the B+, and versions 3 to 5 were used in the BBC Master Series range.The final BBC computer, the BBC A3000, was 32-bit and ran RISC OS. Its operating system used portions of the Acorn MOS architecture and shared a number of characteristics (commands, VDU system) with the earlier 8-bit MOS.Versions 0 and 1 of the MOS were 16KiB in size, written in 6502 machine code, and held in ROM on the motherboard. The upper quarter of the 16-bit address space (0xC000 to 0xFFFF) is reserved for its ROM code and I/O space.Versions 2 to 5 were still restricted to a 16KiB address space but managed to hold more code and hence more complex routines, partly because of the alternative 65C102 CPU with its denser instruction set plus the careful use of paging.