Question

You cannot perform arithmetical operationbinary numbers.
The decimal number system consists of 10 digits, i.e, 0 to 9.
The method to perform division of two binary numbers is not the same as that of decimal number.

Answer 1

Answer:

lEARNlNG tN THIS CHAPTER

a Oeetmtl Number System

• Bmary Number System

• Hexadecimal Number System

• Computer Arithmetic

• Octal Number System

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In early days when there were no means of counting, people used to count with the help of fingers, stones, pebbles,

sticks, etc. These methods were not adequate and had many limitations. To overcome these limitations, many

number systems were introduced with the passage of time, like:

• Decimal number system O Binary number system

O Octal number system O Hexadecimal number system

A number system is a set of values used to represent different quantities .

• DECIMAL NUMBER SYSTEM

The need for counting paved the way to introduce Decimal number system in which 0,1,2,3 ... 9 are used to form any

number. Most of our arithmetic operations are performed with decimal numbers.

Decimal number system consists of ten digits i.e., 0 to 9 with the base 10. Each number can be used individually or

they can be grouped to form a numeric value. E.g., 82, -256, 52.87 etc. The value of each digit in a number depends

upon the following:

• The face value of the digit

• The base of the number system

• The position of the digit in the number

Each position represents a specific power of base (10). The right most digit of a number is called Least Significant

Df&ltwhereas the left most digit is called Most Significant Digit. For example, the number 547 can be represented in

thefolowtngway: ~~-.. 7 • 10- ~~, • 11'

~--

....

units =

tans =

hunclreds II:

7

40

500

547

--~llftlnolnclN!usetaSfllSS ten folds as we move from right to left. In the above mentioned exarnpJe;

111d..., place values are hundreds, tens and units respectively. The place varue

tnf:hefUllber .

.,,.... • .,.~thatareused In a computer.