Computer Knowledge By Shahrukh Khan

 Structure Of "C" Program 1.Documentation Section(Optional) 2.Linking Section(Header Files) 3.Global Decalaration Section(Optional) void main()          {              4.Local Decalaration              5.Logic Section(Statements)          } Note- Main() is a special function , which is automatically get call by compiler whenever you axecute our programme. void                main() 👆                   { return              - type                 -                         } C/C++ S/W Compiler Tc 4.0/code Block 20.X "C" Compiler                   "C++" Compiler 👆      ...

  General Program Shortcuts Ctrl+N : Create a new workbook Ctrl+O:  Open an existing workbook Ctrl+S:  Save a workbook F12:  Open the Save As dialog box Ctrl+W:  Close a workbook Ctrl+F4:  Close Excel F4:  Repeat the last command or action. For example, if the last thing you typed in a cell is “hello,” or if you change the font color, clicking another cell and pressing F4 repeats that action in the new cell. Shift+F11:  Insert a new worksheet Ctrl+Z:  Undo an action Ctrl+Y:  Redo an action Ctrl+F2:  Switch to Print Preview F1:  Open the Help pane Alt+Q:  Go to the “Tell me what you want to do” box F7:  Check spelling F9:  Calculate all worksheets in all open workbooks Shift+F9:  Calculate active worksheets Alt or F10:  Turn key tips on or off Ctrl+F1:  Show or hide the ribbon Ctrl+Shift+U:  Expand or collapse the formula bar Ctrl+F9:  Minimize the workbook window F11 : Create a bar chart ...

Array: A set of pair (a value and a index)For each index there is a value associated with that index. Array is represented in memory as consective memory blocks. OR An Array can be defined as an infinite collection of homogenous (simlar type)Elements. Array are always stored in consecutive (specific)Memory Location. Array can be store multiple values which can be referenced by a single name.                                                  a rr (0)         (1)            (2)            (3)          (4)            (5)          (...

 Data Structure *Data Structure is a Data Organization , managment and storage format for eassy access and modification of data. Why Data Structure There are different requirements when we are working in projects.Although storage can be done in any format but access and modifications have different needs every time and have good efficiency in our programe a good choice of Data Structure is required. Different Type Of Data Structure ·          Array ·         Linked List                  Linear Data Structure ·         Stack ·         Queve   ·         Graph ·          Tree                   ...

 Data Type In "C"                      DATATYPE                   SIZE(IN BITE) INT(Integer) 2 Short INT TC=2,ANSI=1 Long INT 4 Unsigned INT(+) 2 Float 4 Double 8 Long Double 10 Chr(Character) 1 Unsigned Char(+) 1                Categories Integer -Int , Short Int , Long Int , Unsigned Int(+) Real- Float , Double , Long Double ,  Character -Char , Unsigned Char(+) Some IMP Point About Data Type All Data Type Are Keyword Means Reserved Words Size Of Data Type Is A Compiler Depended Property ,Means diff.Computer Support diff Size Of Data Type "Unsigened" Means Data...

Learn C Programming  1.Primary Data Types Character Integer Float Double 2.Secondary Data Types Array  Pointer Structure Etc Data Type Of Variable Character -1Byte                  Ex-a,b,c Integer -2BYTES           Ex-1,2,3 Floa t-4Bytes          Ex-1.1,2.3,5.6 Double -8Bytes Important  For Remember Now  Printf -Use To Print The Character , Result or Output Scanf- Use To Read Character or A Value Assign Integer -%d Character -%c String- %s Float -%f Header File -#include<conio.h>                     #include<stdio.h> Semicolon-; Open&Close Braces -{                                    } Clscr(); -Clear Screen Getch(); -Hold Screen   Example Of C Programe *Write A Programe To Calculate Addition Of Two Int Nos.In "C" ...

Computer Science       Computer science is the study of both computer hardware and software design. It encompasses both the study of theoretical algorithms and the practical problems involved in implementing them through computer hardware and software. The study of computer science has many branches, including artificial intelligence, software engineering, programming and computer graphics. The need for computer science as a discipline has grown as computers become more integrated into our day-to-day lives and technology continues to advance. History And Development Of Computer Science The development root of Computer Science relates to some distinguishable fields, which are: Mathematics:  It gave the notions and introduced the concept of 'binary number system' and 'stored program'. It was understood that we could represent the information in the form of zeros and ones and store them in the system. Physics and Electrical Engineering:  It stroked Boolean algebra'...