Wednesday, October 18, 2017

Programming Languages

         To Communicate between Human and Computer.

Levels of Programming Languages

  1. Low Level 10=0001010
  2. Middle Level $d=10
  3. High Level a=10

Types of Programming Languages

  1. Procedure Oriented Programmming Languages {POP} [Example:C]
  2. Object Oriented Programming Language {OOP} [Example:C++,Java,Ruby,Python,C#

C Language

  • C is POP.
  • C is High Level as well as middle level programmming languages.
  • C is Case Sensitive
  • C has File Extension *.C

Structure of C Program

      #include<stdio.h> // Header File Inclusion
      #include<conio.h> // Header File Inclusion
      void main()      //Main Function Definition
      {                      //Main Function Definition Begins
       Declaration
       Statements
      }                    //Main Function Definition Ends
      

Example First C Programs

      #include<stdio.h> //Standard Input and Output Header File
      #include<conio.h> //Console Input and Output Header File
      void main()             //Main Function Defintion
      {               //Main Function Defintion Begins
      clrscr();               //To Clear the Previous Out of the Screen

Windows 64 bit OS

Download Compiler

Monday, October 2, 2017

Managing Text in Computer Applications

Managing Text

Moving Text

1)Left Arrow To move the cursor letter by letter in backward direction
2)Right Arrow To move the cursor letter by letter in forward direction
3)Up Arrow To move the cursor line by line in upward direction
4)Down Arrow To move the cursor line by line in downward direction
5)Ctrl + Left Arrow To move the cursor word by word in backward direction
6)Ctrl + Right Arrow To move the cursor word by word in forward direction
7)Ctrl + Up Arrow To move the cursor Para by Para in upward direction
8)Ctrl + Down Arrow To move the cursor Para by Para in downward direction
9)Page Up To move the cursor Page by Page in upward direction
10)Page Down To move the cursor Page by Page in downward direction
11)Home To move the cursor Begining of the Line
12)End To move the cursor End of the Line
13)Ctrl + Home To move the cursor begining of the document
14)Ctrl + End To move the cursor end of the document
15)Backspace To Deleting the Letter backward direction
16)Delete To Deleting the character forward direction

Selection

1)Shift + Left Arrow To select the content letter by letter in backward direction
2)Shift + Right Arrow To select the content letter by letter in forward direction
3)Shift + Up Arrow To select the content line by line in upward direction
4)Shift + Down Arrow To select the content line by line in downward direction
5)Ctrl + Shift + Left Arrow To select the content word by word in backward direction
6)Ctrl + Shift + Right Arrow To select the content word by word in forward direction
7)Ctrl + Shift + Up Arrow To select the content paragraph by paragraph in upward direction
8)Ctrl +Shift+Down Arrow To select the content paragraph by paragraph in downward direction
9)Ctrl + Shift + Home To select the content beginging of the document
10)Ctrl + Shift + End To select the content end of the document
11)Ctrl + A To select All the content of the document

Saturday, September 23, 2017

Windows Shortcuts Frequently Used

Shortcut Keys for Windows Operating System
Windows + E                    To Open Windows Explorer (or) My Computer (or) This PC      
Windows + D To Open our Desktop
Windows + R To Open a Run Dialog Box
Windows + L To Lock your My Computer
Alt + Right Arrow To move the screen in forward direction
Alt + Left Arrow To move the screen in backward direction
Alt + Tab o switch over the multiple windows forward direction
Alt + Shift +Tab To switch over the multiple windows backward direction
Alt + Space , X To maximize the current screen
Alt + Space , R To restore the current window
Alt + Space , N To minimize the current screen
Alt + Space , C To close the current screen
Alt + Space , M To move the current screen
Alt + Space + S To resize the current screen
Alt + Enter To view file details
Ctrl + C To Copy your File
Ctrl + X To Cut your File
Ctrl + V To Paste your File

Tuesday, September 19, 2017

Basic Computer and Fundementals

What is Computer?

  It is an Electronic Device
  It knows 0's and 1's.It is known as Binary language.
  Every Computer should runs on Operating System.

Architecture of Digital Computer


Operating System

Interface between Hardware and Software.

Hardware

We can touch physically but we cannot intreact easily.
 Major Types of Hardware Devices
   I)Input Device   ==> Example) Keyboard
 II)Output Device ==> Example)Monitor
Software
It is a set of Programs.
Major Types of Softwares
   I)System Softwares
      Example)Operating System
   II)Application Software
      Example)Word,Tally
ALU
   It stands for Arithmetical Logical Unit.
   It will process of our inputs  and it will send it to the output unit.
   To Process the inputs we use Processor(Intel,Pentium)

Memory

It is one kind of storage in computer.
Major types of Memory
   1)Primary Memory
       Example) RAM(Random Access Memory),ROM(Read Only Memory)
    2)Secondary Memory ==>
       Example) Hard Disk,SD Card,Pendrive

Memory Units

1)8 bits                1 Byte               
2)1024 B 1 KiloByte
3)1024 KB 1 MegaByte
4)1024 MB 1 GigaByte
5)1024 GB 1 TeraByte