Logic learning 02

  Some important MCQ . Ans. :- a)-i) , b)- i) , c)- iii) , d)- iii)                        Ans. :- a)- ii) , b)- iii) , c) - iii) , d)- ii)                         Ans.:- a)- ii) , b) - i), c) - iii) , d) - ii)                        And. :- a)- iii) , b)- ii) , c)- iii) , d) - iii)                       Ans. :- a) - ii) , b) - i), c)- iii) , d) - iii)                      Some important previous year questions of programming. 1) 2) 3) 4)

  Surface tension.         Intermolecular forces:- The forces of attraction and repulsion between their molecules . These forces ,are called intermolecular . Their is to forces 1) cohesive force.  2) adhesive force. Cohesive force:- the force of attraction between 2 molecules of same substance called as cohesion. Adhesive force:- the force of attraction and repulsion between the two different substance like liquid and solid ,solid with gas etc. is called adhesion. Range of molecular forces:- The maximum distance between 2 molecules upto which intermolecular forces are effective (also called as short range forces). Distance (10 to the power -9). Sphere of influence :- an imaginary sphere drawn with given molecule as centre and radius equal to the molecular range . Surface film :- The layer of surface of liquid whose thickness is about equal to range of molecular attraction. Surface energy :- when a molecular is taken from the inside to the surface layer work...

 1. ALU  2. STACK POINTER 3. PROGRAM COUNTER 4. INSTRUCTION REGISTER AND DECODER ALU ( ARITHMATIC AND LOGIC UNIT ) It is 8 bit unit  In this arithmetic and logical operation are carried out . ALU contain the binary adder to perform addition substracion by 2’s complement method Data is supplied by memory devices and input ouput devices The result is typically stored in the accumulator. STACK POINTER:- Stack poiointer is a 16 bit register which contain the address of top of stack With the help of incrementer and decrementer stack pointer perform their work The stack pointer is incremented when data is push  The stack pointer is decrementd when data is pop. INSTRUCTION REGISTER AND DECODER :- During the instruction fetch, the first 8 bit of instruction is transfer to the 8 bit instruction register The content of instruction register are available to the instruction decoder The output of decoder get by timing signals, ALU & data buffer. PROGRAM COUNTER:- Program coun...

The elements of this nitrogen group is collectively called  PNICOGENS and their compounds are PNICONIDES.                                  Nitrogen is the most aboundant gas in atmosphere.                                                               Phosphorus is most reactive elements in these group and its colour is yellow ,these form is more reactive form of phosphorus. Which always kept under the water.                  General electronic configuration :- ns2,np3.                In these group the elements have np3 which is outermost orbit and have exactly halffilled so these elements have fairly stability and hence these are inert elements. Eg . N is b...

                                                                     

 Laws:- Newton law of gravitation : Every planets of matter attract each other particles of matter with a force which directly proportional to the product of their masses and inversely proportional to the distance between them.    Kepler s laws:- 1) first law :- all planets revolves around the sun in elliptical orbit with the sun at one focus of the orbit.                                                                                          2) second law:- the radius vector drawn from the sun to the planet swept equal area in equal interval of time.                                                          ...

Chemistry Important reactions. (Advance level)                     

  MAIN FEATURES OF WINDOWS 98 ➢Easier to use : ➢Windows 98 is a single user multitasking operating system  ➢Searching is easy in this os. ➢A file can be opened by a single click ➢It allows us to use multiple monitor with single computer ➢New hardware can be easily installed. MAIN FEATURES  Faster : • Windows and program open faster than in windows 95 • The computer speed and efficiency can be easily improved by single maintainance. True web integration : • It can be easily connected to internet • Web pages can be viewed in any window • Internet conferances can be arranged

 Polymers: The fibres have strong hydrogen bond.             Examples of elastomers :- buna-s , buna - N , neoprene.                                                                   Examples of the fibres:-polyamide ( nylon 6,6) , polyester ( terelyne).                                     Concept of thermoplastic:- which substance which is soft on heating and hardening on cooling.                                                                     Examples of thermoplastic are polythene , polystyrene , polyvinyl ....

  Biomolecules part 2. DNA has bases like adenine , gunine , cytosine , thymine.                                                  RNA has bases like adenine, gunine , cytosine , urasil.                                                        Adenine have hydrogen bond with thymine and cytosine have hydrogen bond with gunine.                                                                       D- fructose , D - manose ,D- glucose , form a same osazone product .                        ...

Biomolecules Polysaccharide are not sweet in taste.               All monosaccharides are reducing sugar.         Monosaccharides are starting from carbon number 3.                                                                Starch contain amylose and amylopectin amylose contain bonding between c1 -c4 and amylopectin has c1-c6 bonding in their structure.                                                                 Monomers: a)Lactose : 1) beta -D galactose 2)beta - D glucose.                                   ...

  Html Table  ✓ A table can be created using <table></table> ✓ A table consists of rows and column  ✓ The row is to be define 1 st and then cells or column inserted into row  from left to right . ✓ For creating row <tr></tr> tag is used ✓ For table data <td> </td>tag is used ✓ For table heading i.e. row heading <th></th> tag is used. Basic table structure <table> <tr> <td>cs academy </td> <td>html</td> </tr> <tr> <td>.data structure</td> <td>operating system</td> </tr> </table> Important tags  ▪ <img src=“ ”> : use to add images on our web page. ▪ <a href=“ ”> use for hypertext link , called as anchor tag.. ▪ . :use to show text in super script for 1st ▪  : use to show text in subscript form. ▪ <strike></strike> : text have line drawn throught the middle ...

  HTML COLORS • Colors are very important to give a good look and feel to your website. • HTML Color Coding Methods: • There are following three different methods to set colors in your web  page − • Color names − You can specify color names directly like green, blue  or red. • Hex codes − A six-digit code representing the amount of red, green,  and blue that makes up the color.. • Color decimal or percentage values − This value is specified using  the rgb( ) property. HERE ARE THE EXAMPLES TO SET BACKGROUND OF AN HTML TAG BY COLOR NAME <html> <head> <title></title> </head> <body bgcolor=“ red”> </body> </html> HTML COLORS - HEX CODES • A hexadecimal is a 6 digit representation of a color. • The first two digits(RR) represent a red value, the next two are a green value(GG), and  the last are the blue value(BB). • Each hexadecimal code will be preceded by a pound or hash sign #. Following is a list of...

  What is HTML ? ▪ The HTML is used to create world wide web document . ▪ Using this language user can creat web pages which can view in web browser. ▪ HTML is not a programming language in real sense . ▪ It is set of code that is used to creat document then it can be publish on world wide web . Advantages of HTML • No special software is needed . • Easy to learn and also for implementation . • Contain a powerful formatting facilities. • HTML pages updated easily without changing whole document. • Finding error is easy in HTML. • It will not cost anything for its use . • There is no expensive licenses to buy or to upgrade . Disadvantages of HTML [ July 2017,06,09,mar-14]  HTML is not a programming language in real sense. Any simple calculation can no be done in HTML . It can not be use to print even dates. Interactive web pages can not build in HTML. The web pages can be develop in HTML but can not behave like an application. What are the tags ? Tag is a simple unit of ...

  What is a constructor ? Why it is called so? “A constructor is a special member function of a class . Its task is to initialize the objects of its class. ” It is special because its name is same as that of the class to which it belongs. The constructor is invoked whenever an object of its associated class is created. It is called constructor because it constructs the values of data members of the class. A constructor can never return any value. Hence ,it is written with no return type ( even void is not written ). Whenever a class contain a constructor like one above , it will be initialized automatically , whenever an object of the class is created. i.e. the declaration – integer int1; This not only creates the object int1 of type integer , also initializes its data members m and n to zero . Give the characteristics of a constructor function .or Syntax rule for writing constructors. The constructor name is always same as the class name . They do not have ret...

  Object oriented programming • Object oriented programming is an approach that provides a way of modularizing programs by creating partitioned memory area for both data and function that can be used as templates for creating copies of such modules on demand . • In object oriented programming the program is designed around the data being operated upon rather than upon the operation themselves. • OOP allows to decompose a problem into a number of entities called object and then build data and function around these entity. • When program is executed the object interact by sending message to one another • Each object contains data and code to manipulate the data . Features of OOP : • Program are divided into number of object. • Data is hidden and cannot be accessed by external function • Object may communicate with each other through function • New data and function can be easily added wherever required. Object : • Object are the basic runtime entity in object oriented sy...

  Explain the concept of function overloading with example . The use of same function name to create function that perform a variety of different tasks is called as function overloading . Overloading refers to the use of same thing for different purpose . Function overloading or function polymorphism , is an example of compile time polymorphism . Using the concept function overloading , create a family of function with one function name but with different argument lists. The function would perform different operation , depending on argument list in function call. The correct function to be invoked is determined by checking the number and the type of the argument and not on the function type . When a function is called , the compiler first matches the prototype having same number and types of arguments and then calls appropriate function for execution . A best match must be unique. Pointers : • A pointer is a variable which hold the memory address of another variab...

 What is c++ ? What is the advantages of c++ ? C++ is an object oriented programming language Initially c++ was name as “c with classes”. C++ was developed by Bjarne stroustrup at & T Bell Laboratories , usa , in the early eighties . Advantages of c++ over c are : (1) c++ is an incremented version of of c . It is sperset of c. almost all c programme are also run in c++ compiler . (2) The important faculties added in c++ are classes , function overloading , operator overloading . (3) C++ allow user to create abstract data type , to inherit properties from existing data type . (4) c++ supports polymorphism . (5) Any real life application systems such as editor , compiler , database , communication system can be built by c++. (6) Object oriented libraries can be built by c++. (7) c++ programs can be easily implemented , maintained and expanded. What do you mean by object based programming language and object oriented programming language? State the relationship b...

 WHAT IS MICROPROCESSOR ? • Microprocessor is semiconductor multipurpose , programmable logic device that reads binary instruction from storage device that is memory . • It accept the binary data as a input and process that data according to the instruction and provide output. • Microprocessor are capable of performing various computing function and making decision change the sequenceof program execution. • Microprocessor can also view as integrated circuit , that contains processing capabilities of large computer . FUNCTION OF MICROPROCESSOR • To fetch decode and execute instructions • To transfer data from one block to another block • To provide control and timing signals to the whole system • It gives proper response to different external interruptionon. FIRST GENERATION ✓Intel’s 4004 was the first microprocessor available in the market . ✓It was a four bit pmos microprocessor in 1971 designed to be used in calculation . ✓In1972 intel introduced first general purpose 8 bit micro...

 What is GUI ? • The interface which replace cryptic command by their graphical representation are called as graphical user interface. • Ex. Windows operating system is GUI based operating system. • ADVANTAGES : • It is not necessary to remember the commands and is meaning . • User can run several programs simultaneously. • User can communicate and exchange data between program without transferring and copying the data . • Easy to use. Features of GUI • Replacement of command with icon :; • Command are group together in various levels of hierarchy and when the user select a group , further commands in that group are displayed . • This allow user to select command using cursor and simply clicking on it . • User can select the command and use the application without first having to know about the computer and it working . • provide online help : • It provide HELP about various features of the application . • Help can assists the user in knowing everything about the application. Essen...

The computer science notes now available The notes of computer science topics are available . cs academy by ketaki youtube channel teaching computer science student to get better understanding of the cs. .They give a best content of computer science for hsc students .so For better understanding the notes are available on this logic learning platform ,please follow these platform to get quick notification about this platfom and subscribe the cs academy by ketaki youtube channel . we are also provide notes of the other subject as well as formulaes ,they will be coming soon on these platform.........

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