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Sequential file access - PowerPoint PPT Presentation

Chapter 10: Operating Systems

Chapter 10: Operating Systems. An operating system is a set of programs through which a computer manages its resources. Its main functions are to:. Manage the computer hardware CPU performance & utilization Memory allocation & protection Input-output management Keyboard control

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Random Access Files

Random Access Files. CSC 171 FALL 2004 LECTURE 23. Sequential File Access. Sequential access Data in files are accessed one item after another The 4 th item cannot be read without reading the first 3 items Imagine updating the 1000000 th item and then updating the 999999 th.

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1.55k views • 29 slides

CS105 Introduction to Computer Concepts OPeRATING SYSTEMS LAyER

CS105 Introduction to Computer Concepts OPeRATING SYSTEMS LAyER. Instructor: Cuong (Charlie) Pham. Outline. Operating Systems Timelines Statistics Roles Resource Management CPU Scheduling File System. _Nix. Mac OS. OS Market Share. What is an OS?.

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348 views • 21 slides

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Sequential file access - PowerPoint PPT Presentation

Chapter 10: Operating Systems

Random Access Files

CS105 Introduction to Computer Concepts OPeRATING SYSTEMS LAyER