TAILIEUCHUNG - Lecture Operating system concepts - Lecture 24

The contents of this chapter include all of the following: Discuss the principal requirements for memory management, understand the reason for memory partitioning and explain the various techniques that are used, understand and explain the concept of paging,. | CSC 322 Operating Systems Concepts Lecture - 26: by Ahmed Mumtaz Mustehsan Special Thanks To: Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. (Chapter-5) Silberschatz, Galvin and Gagne 2002, Operating System Concepts, Ahmed Mumtaz Mustehsan, GM-IT, CIIT, Islamabad 1 Chapter 5 Input/ Output Hardware Disk (Magnetic / Optical ) Lecture-24 2 Ahmed Mumtaz Mustehsan, GM-IT, CIIT, Islamabad Disks Called Magnetic (hard) disk Reads and writes are equally fast Good for storing file systems Disk arrays are used for reliable storage (RAID) Optical disks (CD-ROM, CD-Recordable, DVD) used for program distribution Seek time is 7x better, transfer rate is 1300 x better, capacity is 50,000 x better. Floppy vs hard disk (20 years apart) Disks-more stuff Some disks have microcontrollers which do bad block re-mapping, track caching Some disk controllers are capable of doing more then one seek at a time, . they can read on one disk while writing on another Real disk geometry is .

• Hệ điều hành
• Operating system
• Operating system concept
• Memory management
• File systems
• Operating systems design
• Operating system structure
• Operating system concepts
• Lecture Operating system concepts
• Operating system services
• Operating system structures
• Operating system design
• Hệ điều hành
• Computer system organization
• Operating System Debugging
• Operating System Generation
• Types of System Calls
• Lecture Operating system principles
• Computer system
• Modern operating systems
• Evolution of operating systems
• Computer system structures
• File system interface
• File system implementation
• Computer system architecture
• The Linux system