device operating system

Operating System Log location and Operating System Log location on various operating systemsLinux:/var/log/messagesAIX:/bin/errpt-a (redirect this to a file called messages. out)Solaris:/var/adm/messagesHP-UX:/var/adm/syslog. logTru64:/var/adm/messagesWindows: save Applicati

Recently read the "30 days of homemade operating system" this book, read the "Load operating system from the boot area" section of the time stuck, first of all my question is this: first, the disk image file img 0x2600 This place to store the name of the operating

units. This improves the resource utilization of the entire system. When the CPU needs to complete a set of related read/write operations and related control, it only needs to send an IO command to the IO channel, to give the first address of the channel program to be executed and the IO Device to be accessed. After the channel receives this command, it can complete the IO task specified by the CPU by ex

products are slightly different. This makes it very difficult to write the application, becauseApplications cannot take into account the compatibility of all hardware. Therefore, the operating systemThe slave database is isolated from the entire system, including specific hardware operations and hardware-related compatibility issues.The device driver is used to

, so the application you develop for one type of I/O device cannot run on another computer with different I/O devices, and the operating system perfectly eliminates the disadvantage of this difference and the inability to expand, so logically, The operating system is located

, I'll forget it.I've seen it, I'll remember it.I can only understand what I've done.!: Operating system family? UNIX family: Mac OS, etc.Linux family: Ubuntu,fedora,andriod, etc.Windows family: Windows 10,WPH, etc.Other operating systems: industrial areas, automation, mainframe operating systems, etc.=================

features of the processor. At the beginning of writing the operating system, the system controls the bios and extracts the programs stored in the Rom. BIOS is used to execute post (power on self test, self-check. Self-check is to check the integrity of the Computer (for example, whether the peripherals work normally, whether the keyboard is connected ). After al

[E liangshi Yiyou network] in the UNIX operating system, access to I/O devices is performed through a set of fixed entry points, this set of entry points are provided by the device drivers for each device. Generally, the drivers of devices provide the following entry points: 1. Open entry point. Open the

in the introduction Linux Management Before I ask you a question, what is the operating system? in fact, many people are not able to say, the operating system can also be said to be a software, it is running on the computer hardware software, this software and common applications and game software is very different, th

1. The relationship between hardware, driver and application software without operating systemIn the absence of an operating system, the device-driven interface is delivered directly to the application software engineer, and the application does not span any levelThe device-

"original" How to install the Linux operating system on a computer with a Windows operating system installedOne thing you have to know I believe most personal computers in China have Windows installed when they buy them, and everyone is used to Windows, and many people take it for granted that the computer is Windows

usually the closest to the hardware of a layer of system software, it is the hardware to transform the bare metal into a fully functional virtual machine, making the use and management of computer systems more convenient, more efficient use of computing resources, the upper layer of the application can be more than the hardware provides more support. The operating syst