Download presentation

1
**Binary Arithmetic & Data representation**

2
Addition 0 + 0 = 0 0 + 1 = 1 1 + 0 = 1 1 + 1 = 0 , with carry 1 = 1 , with carry 1 Example

3
**Subtraction Example 1 0 1 0 1 - 1 1 1 0 0 0 1 1 1 0 - 0 = 0 1 - 0 = 1**

1 - 1 = 0 0 - 1 = 1 , with borrow 1 [same as borrowing 1 from next column 10-1=1] Example

4
**Multiplication Example 1 0 1 0 x 1 0 0 1 0 0 0 0 1 0 1 1 0 1 0**

5
Division 0 / 1 = 0 1 / 1 = 1 Example 110 ) ( 0101 110 1000 100 1001 11

6
**Subtraction by addition**

Computers store negative numbers in the form of their arithmetic complements. Computers’ use 2’s complement form. Example, binary form 1’s complement 2’s complement We will use 2’s complement for subtraction. First convert the negative number into 2’s complement form. Then add it to the other number.

7
Example, (B= =240) (A= =142) (Result=98) Discard (B=01001=9) (A=00100=4) (Result=-5) 2’s complement of 11011=00101=5

8
**Numeric data representation**

An integer or fixed point number has no decimal point. An integer I is represented in the memory of the computer by its binary form if I is positive or by its 2’s complement if I is negative.

9
BCD code Another way to represent numerical data is to convert each decimal digit to its corresponding binary format. 4 bits are needed to code each decimal digit. Its called binary coded decimal (BCD). Example, 469

10
Alphanumeric codes There are two 8-bit alphanumeric codes, ASCII (American Standard Code for Information Interchange) and EBCDIC (Extended Binary-Coded Decimal Interchange Code). ASCII codes have a zone part. The 16-bit Unicode is becoming popular. Unicode supports international languages.

Similar presentations

Presentation is loading. Please wait....

OK

Data Representation, Number Systems and Base Conversions

Data Representation, Number Systems and Base Conversions

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on online banking in india Ppt on film industry bollywood songs Ppt on aircraft landing gear system information Human eye anatomy and physiology ppt on cells Ppt on fire safety measures Ppt on input and output devices of computer Ppt on rural entrepreneurship in india Burn ppt on dvd Ppt on ufo and aliens videos Ppt on united nations agencies