Topics
Operating System
- Basics of Operating System (OS)
- Basics of Operating System (OS)
- Windows NT
- Introduction to GNU/Linux (GNU Not Unix)
- File Systems and Its Types
- File Operations
- Access Methods in Operating System
- Allocation Methods
- Concepts Related to Process Management
- Concepts Related to Memory Management
- Ubuntu is One of the Most Popular GNU/Linux Distributions
- Access and Security Aspects of O.S.
Data Structures
C++ Programming
- Introduction to C++ Programming
- Idea Behind Object-Oriented Programming
- Object-Oriented Programming Approach
- Object-Oriented Terms and Concepts
- Classes and Objects
- Constructors and Destructors
- Functions in C + +
- Arrays in Data Structure
- 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)
- Introduction to HyperText Markup Language (HTML)
- HTML Documentation
- Basics of HTML Tags
- Font Tags in HTML
- Lists in HTML
- Tables in HTML
- Images in HTML
- Links in HTML
- HTML Scripts
- Sequential Access
- Direct Access
- Techniques of Access Methods
Maharashtra State Board: Class 12
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.
