PPT-Directory-File System Exercise

Figure 44 in HtDP DrScheme Related Primitives Data definition define struct file name size content define struct dir name dirs files Corresponding constructors and . File Systems . and Directories. 2. Chapter Goals. Describe the purpose of . files. , . file. . systems. , and . directories. Distinguish between . text . and . binary. . files. Identify various file . Figure 44 in . HtDP. Racket Primitives. Data definition. (define-. struct. file (name size content)). (define-. struct. dir (name . dirs. files)). Corresponding . constructors. and . accessors. Hard Drive Format. Hard Drive Partitioning. Boot process starts in ROM.. Eventually, loads master boot record from booting device.. MBR located at . well-known . location.. Hard Drive Partitioning . (Windows Only). File Permissions. In Ubuntu, files and folders can be set up so that only specific users . can view. , modify, or run . them. For . instance, you might wish to share . an important file . with other users, but do not want those users to be able to edit . File Management. Patricia Roy. Manatee Community College, Venice, FL. ©2008, Prentice Hall. . Operating Systems:. Internals and Design Principles, 6/E. William Stallings. File Management. File management system consists of system utility programs that run as privileged applications. File Concept. Contiguous logical address space. Types: . Data. numeric. character. binary. Program. File Structure. None - sequence of words, bytes. Simple record structure. Lines . Fixed length. Variable length. Chapter 12. 2. File Management. File management system consists of system utility programs that run as privileged applications. Concerned with secondary storage. 3. File System Properties. Long-term storage. File . Systems – Allocation, Naming, Performance, and Reliability. CS. . 111. Operating . Systems . Peter Reiher. . Outline. Allocating and managing file system free . space. Other performance improvement strategies. Fall . 2015. Version Control. Keep track of changes to a project. Serves as . a . backup. Revert to previous version. Work on the same files concurrently. Must-know in the tech industry. Origins of VC. 1. File Concept. Contiguous logical address space. Types: . Data. numeric. character. binary. Program. CS 3100 File-System Interface. 2. File Structure. None - sequence of words, bytes. Simple record structure. 2. Introduction. Unix-like system is everywhere. Linux. Android for smartphones. Google Chrome OS for . Chromebook. Web servers. OS X for MacBook/iMac . etc. iOS for iPhone/iPad . etc. 3. Unix Shell. Computer Systems An Integrated Approach to Architecture and Operating Systems Chapter 11 File System ©Copyright 2008 Umakishore Ramachandran and William D. Leahy Jr. My file 11.1 Attributes Attributes Interface. File Concept. Access Methods. Directory Structure. Allocation Methods. Objectives. To explain the function of file systems. To describe the interfaces to file systems. To discuss file-system design tradeoffs, including access methods, file sharing, file locking, and directory structures. . 01. BACKGROUND. PROBLEM & TERMINOLOGY & Motives & OBJECTIVES. Linux Virtual File System (VFS). Linux Virtual File System (VFS) – . cont. ’. The Linux Virtual File System (VFS) . (also known as the Virtual Filesystem Switch) is the software layer in the kernel that provides the filesystem interface to user space programs. .