Common GSM Codes or USSD Codes and Their Use

These are some of the common GSM service commands (or service codes), also called USSD (Unstructured Supplementary Service Data) codes and their use.

Call Redirection


*#61# To check status of redirection of all incoming calls, if there is no answer.

##002# To Cancel redirection of all calls

Call Waiting or Holding

How to Launch an html file (web page) using Autorun

Here in this post we will see how to launch a .html  file automatically from a CD or DVD using Windows AutoRun feature. If you are new to Autorun, please read this post: What is AutoRun and AutoPlay ? How to Set it ?

If you want to know more about autorun commands, please read this post: How to Make a AutoRun CD or DVD Using Autorun.inf

The open command used in tte autorun.inf file cannot launch an html file (web page ) directly. Instead, we can open the webpage through some application.

How to Launch .msi Files using Autorun from CD

In this post, we will see how to autorun a .msi file from a CD. If you are new to Autorun, please read this post: What is AutoRun and AutoPlay ? How to Set it ?
If you want to know more about autorun commands, please read this post: How to Make a AutoRun CD or DVD Using Autorun.inf

The open command supports only executable files. So, if you want to launch an msi (miscrosoft installer) file from CD automatically when it is inserted to CD drive, use the following code in the Autorun.inf file.

Relational Algebra - Selection, Projection, Joins etc

The relational algebra defines a set of operations on relations, paralleling the usual algebraic operations such as addition, subtraction etc which operate on numbers.The relational algebra operations take one or two relations (tables) as input and return a relation as output. This post we discuss the following relational operations:
  1. Selection (σ)
  2. Projection (π)
  3. Cartesian product
  4. Joins

Selection Operation (σ)

How to Make a AutoRun CD or DVD Using Autorun.inf

In this post we will see how to setup autorun on a CD or Pen drive using Autorun.inf file. If you are planning to create a CD with autorun (launch a file automatically on insertion of disc), this post will be helpful for you. If you are not much familiar with AutoRun, read the following post, to get an idea about autorun feature:  What is AutoRun or AutoPlay and How to Set it?

Now, we see how to make an autorun CD.

STLD Previous Year Question Paper 2013 for Third Semester Computer Science

Free download Previous year 2013 question paper for B.Tech degree examination of Switching Theory and Logic Design for third semester Computer science and engineering (CSE).

Subject : Switching Theory and Logic Design or STLD (3rd sem)
Course : BTech Engineering
Department: Computer Science and engineering (CS)
Semester: Third semester (s3)
University : MG university Kottayam kerala

MG University BTech Mechanical Engineering Third Semester Syllabus

The syllabus for Third semester BTech (B.Tech) Mechanical Engineering under MG University ( Mahatma Gandhi university Kottayam Kerala) is available for download in pdf format. To download it, click here

EDC Previous Year Question Paper 2013 for Third Semester Computer Science

Free download Previous year 2013 question paper for B.Tech degree examination of Electronic devices and circuits for third semester Computer science and engineering (CSE).

Subject : Electronic devices and circuits (3rd sem)
Course : BTech Engineering
Department: Computer Science and engineering (CS)
Semester: Third semester (s3)
University : MG university Kottayam kerala

Previous Year Question Paper for Principle of Management for B.Tech Courses

Free download Previous year 2014 question paper for B.Tech degree examination of Principle of management for the branches : Aeronautical Engineering, Computer science, Electrical and electronics engineering (AN, CS, EE) Fifth semester.

Subject : Principle of Management (5th sem)
Course : BTech Engineering
Department: Aeronautical Engineering, Computer Science and engineering (CS), Electrical and electronics engineering
Semester: Fifth semester (s5)
University : MG university Kottayam kerala