Showing posts with label All about computers. Show all posts
Showing posts with label All about computers. Show all posts

Thursday, 28 December 2017

Dot Matrix Printer head Mechanism and full details

Can produce sheets of plain text very quickly
Used to print to multi-sheet pages
Printing on wide-sheet paper
Print head strikes inked ribbon

Speed measured in characters per second (CPS)
Print head Mechanism
which contains a cluster (or matrix) of short pins arranged in one or more columns.
Printer can push any of the pins out in any combination.
By pushing out pins in various combinations, the print head can create alphanumeric characters
Forms a character by creating a series of dots.

class management and attendance system software in c programming

#include<stdio.h>
int main(void){
int rollno;

char ASSIGNMENTS;
char itshaz;
int assignmentBE=9,assignmentPF=8,assignmentENG=0,assignmentISL=0,assignmentMATH=0;
float Totalmarks,quizBE=0,quizPF=2,quizENG=0,quizISL=0,quizMATH=0;

float SesMarks=0,MidMarks=0;
int BehaviorMarks;
Totalmarks=assignmentBE+assignmentPF+assignmentENG+assignmentISL+assignmentMATH+quizBE+quizPF+quizENG+quizISL+quizMATH+SesMarks+MidMarks+BehaviorMarks;

printf("Enter student ROLL.NO\t");
scanf("%d",&rollno);
if(rollno==1)


{

printf("Student name ITSHAZ UL HAQ\n");
printf("\t\t\t\t\tAssignmentS of all subjects");
printf("\nAssignmentPF %d,\nAssignmentENG %d,\nAssignmentISL %d,\nAssignmentMATH %d,\nAassignmentBE %d ",assignmentPF,assignmentENG,assignmentISL,assignmentMATH,assignmentBE);
printf("\n\t\t\t\t\tQuizes of all sujects");
printf("\nQuizBE %f,\nQuizPF %f,\nQuizENG %f,\nQuizISL %f,\nQuizMATH %f",quizBE,quizPF,quizENG,quizISL,quizMATH);
printf(" \n\t\t\t\t\tSesMarks and MidMarks. %c",SesMarks);
printf("\nSesMarks %f,\nMidMarks %f",SesMarks,MidMarks);
printf("\n\t\t\t\t\tBehaviorMarks %d\n",BehaviorMarks);
printf("Totalamarks%f",Totalmarks);
if(Totalmarks>=50)
printf("\nPassed");

else
printf("\nFail"); }



if(rollno==2){


printf("Student name KINZA KANWAL\n");
char ASSIGNMENTS;

int assignmentBE=0,assignmentPF=0,assignmentENG=0,assignmentISL=0,assignmentMATH=0;
float Totalmarks,quizBE=0,quizPF=0,quizENG=0,quizISL=0,quizMATH=0;

float SesMarks=0,MidMarks=0;
int BehaviorMarks;
Totalmarks=assignmentBE+assignmentPF+assignmentENG+assignmentISL+assignmentMATH+quizBE+quizPF+quizENG+quizISL+quizMATH+SesMarks+MidMarks+BehaviorMarks;
printf("\t\t\t\t\tAssignmentS of all subjects");
printf("\nAssignmentPF %d,\nAssignmentENG %d,\nAssignmentISL %d,\nAssignmentMATH %d,\nAassignmentBE %d ",assignmentPF,assignmentENG,assignmentISL,assignmentMATH,assignmentBE);
printf("\n\t\t\t\t\tQuizes of all sujects");
printf("\nQuizBE %f,\nQuizPF %f,\nQuizENG %f,\nQuizISL %f,\nQuizMATH %f",quizBE,quizPF,quizENG,quizISL,quizMATH);
printf(" \n\t\t\t\t\tSesMarks and MidMarks. %c",SesMarks);
printf("\nSesMarks %f,\nMidMarks %f",SesMarks,MidMarks);
printf("\n\t\t\t\t\tBehaviorMarks %d\n",BehaviorMarks);
printf("Totalamarks%f",Totalmarks);
if(Totalmarks>=50)
printf("\nPassed");

else
printf("\nFail");

}
if(rollno==3){
printf("Student name Najaf Zara\n");
char ASSIGNMENTS;

int assignmentBE=0,assignmentPF=0,assignmentENG=0,assignmentISL=0,assignmentMATH=0;
float Totalmarks,quizBE=0,quizPF=0,quizENG=0,quizISL=0,quizMATH=0;

float SesMarks=0,MidMarks=0;
int BehaviorMarks;
Totalmarks=assignmentBE+assignmentPF+assignmentENG+assignmentISL+assignmentMATH+quizBE+quizPF+quizENG+quizISL+quizMATH+SesMarks+MidMarks+BehaviorMarks;
printf("\t\t\t\t\tAssignmentS of all subjects");
printf("\nAssignmentPF %d,\nAssignmentENG %d,\nAssignmentISL %d,\nAssignmentMATH %d,\nAassignmentBE %d ",assignmentPF,assignmentENG,assignmentISL,assignmentMATH,assignmentBE);
printf("\n\t\t\t\t\tQuizes of all sujects");
printf("\nQuizBE %f,\nQuizPF %f,\nQuizENG %f,\nQuizISL %f,\nQuizMATH %f",quizBE,quizPF,quizENG,quizISL,quizMATH);
printf(" \n\t\t\t\t\tSesMarks and MidMarks. %c",SesMarks);
printf("\nSesMarks %f,\nMidMarks %f",SesMarks,MidMarks);
printf("\n\t\t\t\t\tBehaviorMarks %d\n",BehaviorMarks);
printf("Totalamarks%f",Totalmarks);
if(Totalmarks>=50)
printf("\nPassed");

else
printf("\nFail");
}
if(rollno==4){
printf("Student name zeshan tarar\n");
char ASSIGNMENTS;

int assignmentBE=0,assignmentPF=0,assignmentENG=0,assignmentISL=0,assignmentMATH=0;
float Totalmarks,quizBE=0,quizPF=0,quizENG=0,quizISL=0,quizMATH=0;

float SesMarks=0,MidMarks=0;
int BehaviorMarks;
Totalmarks=assignmentBE+assignmentPF+assignmentENG+assignmentISL+assignmentMATH+quizBE+quizPF+quizENG+quizISL+quizMATH+SesMarks+MidMarks+BehaviorMarks;
printf("\t\t\t\t\tAssignmentS of all subjects");
printf("\nAssignmentPF %d,\nAssignmentENG %d,\nAssignmentISL %d,\nAssignmentMATH %d,\nAassignmentBE %d ",assignmentPF,assignmentENG,assignmentISL,assignmentMATH,assignmentBE);
printf("\n\t\t\t\t\tQuizes of all sujects");
printf("\nQuizBE %f,\nQuizPF %f,\nQuizENG %f,\nQuizISL %f,\nQuizMATH %f",quizBE,quizPF,quizENG,quizISL,quizMATH);
printf(" \n\t\t\t\t\tSesMarks and MidMarks. %c",SesMarks);
printf("\nSesMarks %f,\nMidMarks %f",SesMarks,MidMarks);
printf("\n\t\t\t\t\tBehaviorMarks %d\n",BehaviorMarks);
printf("Totalamarks%f",Totalmarks);
if(Totalmarks>=50)
printf("\nPassed");

else
printf("\nFail");
}
if(rollno==5){
printf("Student name ISRA\n");
char ASSIGNMENTS;

int assignmentBE=0,assignmentPF=0,assignmentENG=0,assignmentISL=0,assignmentMATH=0;
float Totalmarks,quizBE=0,quizPF=0,quizENG=0,quizISL=0,quizMATH=0;

float SesMarks=0,MidMarks=0;
int BehaviorMarks;
Totalmarks=assignmentBE+assignmentPF+assignmentENG+assignmentISL+assignmentMATH+quizBE+quizPF+quizENG+quizISL+quizMATH+SesMarks+MidMarks+BehaviorMarks;
printf("\t\t\t\t\tAssignmentS of all subjects");
printf("\nAssignmentPF %d,\nAssignmentENG %d,\nAssignmentISL %d,\nAssignmentMATH %d,\nAassignmentBE %d ",assignmentPF,assignmentENG,assignmentISL,assignmentMATH,assignmentBE);
printf("\n\t\t\t\t\tQuizes of all sujects");
printf("\nQuizBE %f,\nQuizPF %f,\nQuizENG %f,\nQuizISL %f,\nQuizMATH %f",quizBE,quizPF,quizENG,quizISL,quizMATH);
printf(" \n\t\t\t\t\tSesMarks and MidMarks. %c",SesMarks);
printf("\nSesMarks %f,\nMidMarks %f",SesMarks,MidMarks);
printf("\n\t\t\t\t\tBehaviorMarks %d\n",BehaviorMarks);
printf("Totalamarks%f",Totalmarks);
if(Totalmarks>=50)
printf("\nPassed");

else
printf("\nFail");
}


}

Wednesday, 27 December 2017

What is The World Wide Web

The World Wide Web (WWW), or web, consists of a worldwide 

collection of electronic documents (webpages)
A website is a collection of related webpages and associated items

A web server is a computer that delivers requested webpages to your computer

A browser is an application that enables users with an Internet connection to access and view webpages on a computer or mobile device

A home page is the first page that a website displays

Desktop browsers typically support tabbed browsing

A webpage has a unique address called a web address or URL

A web app is an application stored on a web server that you access through a browser

Web app hosts usually provide storage for users’ data and information on their servers, known as cloud storage