2. What is the difference between a file and a database? A file is a collection of similar records, and is treated as a single entity by users and applications and may be referenced by name. A database is a collection of related data. The essential aspects of a database are that the...
key terms 文件(File):是一组相似记录的集合,可通过名字访问。 文件系统(File System / File Management System):操作系统的重要组成部分,提供存储数据(组织为文件)的手段,并提供一系列对文件进行操作的功能接口。 文件分配表(File Allocation Table,FAT):用来记录文件所在位置的一种数据结构。 磁盘分配表(Disk Allo...
Virtual File Systems(虚拟文件系统)(328) 4. FILE-SYSTEM MANAGEMENT AND OPTIMIZATION(文件系统管理和优化)(331) 1. Disk-Space Management(磁盘空间管理)(332) 1. Block Size(块大小)(332) 2. Keeping Track of Free Blocks(跟踪空闲块)(335) 3. Disk Quotas(磁盘配额)(337) 2. File-System ...
Operating system including improved file managemen 优质文献 相似文献 参考文献 引证文献A New Flash Memory Management for Flash Storage System Proposes a new way of managing flash memory space for flash memory-specific file systems based on a log-structured file system. Flash memory has attractive......
程序化I/O模式下，处理器代表进程向I/O模块发出I/O命令，并由该进程忙等待直到操作完成。中断驱动I/O中，处理器代表进程发出I/O命令，并继续执行后续指令，当I/O模块完成工作时被中断。DMA技术由DMA模块控制主内存与I/O模块之间数据交换，处理器发送数据块传输请求给DMA模块，整个数据块传输完成后...
1.1 What Operating Systems Do operating system. An operating system (OS) is software that manages a computer's hardware. It also provides a basis for application programs and acts as an intermediary between the computer user and the computer hardware. ...
The UNIX OS consists of two separable parts Systems programs The kernel Consists of everything below the system-call 38、 interface and above the physical hardware Provides the file system, CPU scheduling, memory management, and other operating-system functions; a large number of functions for one...
11.2ATypicalFileControlBlock 11.6 In-MemoryFileSystemStructures Thefollowingfigureillustratesthenecessaryfilesystemstructuresprovidedbytheoperatingsystems.Figure12-3(a)referstoopeningafile.Figure12-3(b)referstoreadingafile.11.7 In-MemoryFileSystemStructures 11.8 VirtualFileSystems VirtualFileSystems(VFS)...
data-structure algorithms interview data-structures database-management software-engineering interview-questions oops operating-systems hacktoberfest system-design computer-networks cpp-cheat-sheet Updated Aug 15, 2024 C++ hermit-os / hermit-rs Star 1.7k Code Issues Pull requests Hermit for Rust....
FileAttributes Name–onlyinformationkeptinhuman-readableformIdentifier–uniquetag(number)identifiesfilewithinfilesystemType–neededforsystemsthatsupportdifferenttypesLocation–pointertofilelocationondeviceSize–currentfilesizeProtection–controlswhocandoreading,writing,executingTime,date,anduser...