Notes, abstracts, papers, exams and problems of Computers

A letter from an individual to a business is called a:

Personal-Business Letter: a letter from an individual to a business.

A personal letter contains the following parts (in order):

• Date line
• Inside Address
• Salutation
• Body
• Complimentary closing
• Signature
• Writer's identification

Definitions:

• Date line: the month, day, and year the letter is typed (keyed)
• Inside Address: the name and address of the person to whom the letter is being sent
• Salutation: an opening greeting such as Dear Ms. Jones
• Body: the text of the letter
• Complimentary closing: a closing to the letter such as sincerely or Yours truly
• Signature: the writer's signature
• Writer's identification: the writer's keyed name and address

To format a personal-business letter in block style:

1. Use the default

Data Link Control and Error Control Mechanisms

Error Control Techniques

Efficient data transmission involves acknowledging successful data receipt and handling errors. When a station has both data and an acknowledgment to send, they are combined into one frame to optimize communication. If only an acknowledgment is available, a separate frame (RR or RNR) is sent. In cases where data is ready but no new acknowledgment is needed, the last sent acknowledgment sequence number is repeated within the data frame.

Error control relies on several key mechanisms:

• Error Detection: Techniques like checksums or CRCs identify erroneous frames, which are then discarded.
• Positive Acknowledgment: The receiver sends a positive acknowledgment (ACK) to confirm successful

5. Readiness to Notice (means be ready prepared)

The current state of the interlanguage system (when you're studying your first SLA). What the L is ready to notice (or attend to) due to his/her internal structures or mechanisms (some Ls are going to be more able than others to noticing structures). Pieneman’s Multidimensional Model (word order acquisition in L2 German or emergence of questions in L2 English). Acquisition of word in German. EX: Capacity to place adverbs at the beginning of sentences before. Capacity to place the verb at the end of the sentence in some structures. EX. Prediction about what the L can notice: what is to be noticed refers to the next thing to be acquired: adverbs at the beginning of sentences -> verbs at the... Continue reading "Factors Affecting Second Language Acquisition: Readiness to Notice and Task Demands" »

{ "titl":"Presidency University Websit", "tag": [ "HTM", "CS", "JavaScrip", "Bootstra", "AngularJ", "jQuer" ], "conten":"

THE WEB:

1. WEB1.0, WEB 2.0, WEB 3.0:

-WEB 1.0 or the read-only web: In the 1990s, information on the Internet was only for reading. It was a network of documents and people could not interact with the content. For example, they couldn’t give their opinions, ask for information or register as users. In addition, the information online was not updated very frequently. Almost everything that people used online was also part of the World Wide Web (www).

WEB 2.0 or the social network:

This was developed during the first decade of the 21st century. In this new web, information became bidirectional. Users could not only receive information, but also create and share it. New services appeared and became popular, such as email, chats, videoconferences,... Continue reading "Evolution of the Web and Information Management" »

Transpose of a Matrix

This code demonstrates how to find the transpose of a matrix in Java.

Sorting Algorithm

This code implements a simple sorting algorithm to arrange elements in ascending order.

Complex Number Operations

This code shows how to perform operations on complex numbers in Java, such as addition.

Static Members

This code explains the concept of static members in Java and how to use them.

Function Overloading

This code demonstrates function overloading in Java, where multiple functions can have the same name but different parameters.

Derived Class and Inheritance

This code illustrates the concept of inheritance in Java, where a derived class inherits properties and methods from a base class.

Multilevel Inheritance

This code demonstrates multilevel... Continue reading "Java Programming Examples" »

C++

LET

LET'S LEARN ABOUT BASIC C++

SOURCE : GEEKS FOR GEEKS

LET'S LEARN ABOUT LOOPS

FOR LOOP

#include <iostream>

usingnamespace std;

intmain(){for(int i =1; i <=5; i++)

{ cout <<" Good morning \n";}

return0;}

WHILE LOOP

#include <iostream>

usingnamespace std;

intmain()

{int i =0;// initialization expressionwhile(i <5)

// test expression

{ cout <<"Good morning\n"; i++;// update expression}

return0;}

 DO WHILE

#include <iostream>

usingnamespace std;

intmain(){int i =2;// initialization expressiondo{ cout <<" Good morning\n"; i++;// update expression}

while(i <1);//

test expression

return0;}

SOME IMPORTANT C++ INTERVIEW QUESTIONS 

1. What are the different data types present in C++?

The 4 data types in C++ are given below:... Continue reading "Write a program in c to implement a class to represent complex members . Include member function add and multiply two complex no .Overloaded assignment operator=" »

A code in which each alphanumeric character is represented as a number from 0 to 127, translated into a 7-bit binary code for the computer. Binary

Assembly language: A programming language that is once removed from a computer's machine language. Machine languages consist entirely of numbers.

Availability:

A measure of how easy or difficult it is to obtain a piece of hardware or a computer application

Backbone:

High-speed lines or connections that form the major access pathways within the Internet.

Bandwidth:

The capacity of a networked connection

Banner:

The title of a printed document which identifies it.

Batch processing:

System of processing data in groups at the same time without requiring instructions from the users

Baud:

The unit for measuring the... Continue reading "ASCII Code: American Standard Code for Information Interchange" »