Topics
Operating System
- Introduction to Operating System (OS)
- Idea of an Operating System
- Windows NT
- LINUX
- File Systems and Its types
- File Operations
- Access Methods and its types
- Allocation Methods
- Concepts Related to Process Management
- Concepts related to memory management
- Basics of Graphical User Interface (GUI)
- Access and Security Aspects of O.S.
Data Structures
C++ Programming
- Introduction to C++ Programming
- Idea Behind Object-Orientated Programming
- Object-orientated programming approach
- Object-Oriented Terms and Concepts
- Classes and Objects
- Constructors and Destructors
- Functions in C + +
- Arrays in C++
- Pointers in C++
- References in C++
- Strings in C++
- Inheritance
- Virtual functions and polymorphism
- Friends in C++
- Operator overloading and type conversions
- Files and Stream
HyperTex Markup Language (HTML)
- Sequential access
- Direct access
- Techniques of Access Methods
Access Methods
File stores information. When it is used, this information must be accessed and read into Computer memory. There are several methods to access the information in the file. For example, we have sequential access and direct access.
Sequential access
Sequential access is based upon a tape model of a file. Most of the operations on file are reads and writes. Here the file is assessed sequentially. In sequential access, a program skip forward or backward n records.
Direct access
Direct access is based upon a disk model of a file . Here the file is viewed as a sequence of blocks or records. In this method, any block can be read or written.
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