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ARITHMETIC OPERATIONS ON BINARY NUMBER

Binary arithmetic is simpler to learn because binary number system deals with only two digits - 0 and 1. Binary number perform all arithmetic operation such as Addition, Substraction, Multiplication and compliment as in decimal number system. Binary Addition The addition table for binary arithmetic consist of only the following four entries: 0+0=0 0+1=1 1+0=1 1+1=0 , plus a carry of 1 to the next column.     1011        + 1100    10111     1100    + 1100     11000 Binary Substraction There are three ways to do substraction between binary numbers:- 1. Simple Substraction 2. Substraction using 1's Complement 3. Substraction using 2's Complement Simple Substraction: The complete table of binary substraction is as follows: 0-0=0 0-1=1, borrow 1 from next column 1-0=1 1-1=0    1101 - 0101   1000     1001   - 0111    0...
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Media Of Communication Part 2

Unguided Media Unguided media transport electromagnetic wave without using a physical connection. This type of communication referred as wireless communication. We can divided wireless transmission in :-   1. Radio Wave:- Electromagnetic   waves ranging in frequencies between 3KHz and 1GHz are normally called radio wave.   On radio wave connectivity used communication used Bluetooth, Wi-Fi, etc.     Bluetooth :- It is a wireless network connectivity that enables to connect or transfer data between devices over a short range the physical range of connection up to 100 meter. Ex- Mobile phone, barcode scanning, portable speaker, wireless keyboard, mouse etc.      Wi-Fi (Wireless Fidelity):- Wi-Fi is a network of wireless connection. Wi-Fi network establish by radio frequency like Bluetooth, but has more power, resulting a strong connection.    ·   Wi-Fi is also called wireless Ethernet. It has connectivity range up...
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BASIC STRUCTURE OF A COMPUTER SYSTEM

Computer Function A computer performs action and accomplishes its task in three basic stages namely:- INPUT – Input is the data that is fed into the computer by the user. PROCESS – Processing refers to the series of action by which the computer converts raw data into information. OUTPUT – Output is the result which is termed as information. Input Unit Data and instructions enter a computer through an input unit in a form that depends upon the input device used. Ex- Keyboard, Mouse, Joystick, Scanner etc. CENTRAL PROCESSING UNIT (C.P.U) CPU is also known as the brain of the “Brain of Computer”. As it appears as a hardware component, but it is also a functional component of a computer system. Functional Elements of a CPU        1.        Arithmetic Logic Unit(ALU)        2.        Control Unit(C.U)        3.    ...
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