Question

I.
Answer all the questions.
( 5marks )
1. What do you mean by number system? Explain types of number system?
2. Explain internal network cable vs external network cable.
3. Write the classification of Computer. A2
4. Explain Printer..
5. Explain image format program in ms-access.
6. Explain Student Mark list in Excel. 29
7. List of operator in MS-excel.
8. Explain MICR.
9. Write a short note on laser printer.
10.Explain Router.​

Answer 1

Ans 1) Number systems can be classified into its sub-types on the basis of base of that system. Base of a number systems plays crucial role in understanding the number system and to convert it from one sub-type to other sub-type. Base is also sometimes referred as radix; both these terms have same meaning.

Thus, we have four major types of number systems that are binary, decimal, octal and hexadecimal.

Decimal Number System

Decimal Number System comprises of 10 digits. These digits are 0, 1, 2, 3, 4, 5, 6, 7, 8 & 9. The base of the decimal number system is 10 because total 10 digits are available in the number system. It does not implies that only 10 digits can be expressed in decimal numbers system but using these 10 digits we can define any number in this system no matter how large it is.

Binary Number System

Binary Number System consists of two digits only i.e. 0 & 1. This makes it less complicated than any other number system since it comprises of only two digits. Thus, the base of the binary system is 2 as the available digits in this number system is 2. The other numbers can be expressed with these two digits.

Octal Number System

Octal Number System comprises of 8 digits i.e. from 0, 1, 2, 3, 4, 5, 6 & 7. Thus, the base of Octal Number System is 8. It is much easier to handle array of octal numbers in comparison to binary numbers. This is because if we represent any number using binary digits it will be a long array of binary numbers. While in case of Octal numbers the array of numbers will be less.

Hexadecimal Number System

It comprises of 10 digits and 6 alphabets. The 10 digits from 0, 1, 2, 3, 4, 5, 6, 7, 8 & 9 and the alphabets used are A, B, C, D, E & F. All the other numbers can be expressed with the help of combination of these digits and alphabets. A, B, C, D, E, F represents 10, 11, 12, 13, 14 & 15 respectively.