Mainly there are two number systems. Positional number system and non-positional number system. The system we use in our day to day life for counting and calculating is positional number system. The best example is decimal number system. In positional number system the value of each digit in the entire number is determined by the symbol as well as the place(position) the digit occupies in the number.
For example in number 572
2 is in oneth position, 7 is in tenth position and 5 is in hundredth position
ie 572 = 5 x 100 + 7 x 10 + 2 x 1
All types of calculation is based on the position.
In non-positional system there is no significance for position of the digits. This system cannot be used for calculation. One example is Roman numerals which goes like I, II, III, IV, V, VI, .....
Monday, August 23, 2010
Thursday, August 13, 2009
About Plus two Computer Application
This blog is intended to assist the students of Higher secondary (Kerala Syllabus) in the subject Computer Application. As you know Computer Application is one of the most preferred optional subject in Commerce stream. It is an easy to understand subject and students can score maximum marks with a little effort. Continuous attention in classes is needed to score more marks because Most of the chapters in second year keeps a sequential nature. I am planning to post previous years question papers with tips to answer in this blog. Hope the students will benefit from my effort.
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