Computer Programming

It depends upon the services that you wish to use. Dial up service can be free, but is exceedingly slow. On top of this, it relies upon you having a phone line.

Other internet services are faster, but vary greatly in cost. For example, I have cable internet which gives me 18 mbps download speed and 1 mbps upload speed with a total bandwidth cap of 250 GiB per month, and costs me $40 a month.

A T1 line, however, gives 1.544 mbps and yet can cost several hundred dollars a month! While this may seem like a horrible deal compared to cable internet, the advantage to a T1 line is that the T1 line generally comes with a service level agreement - guaranteeing you access to this bandwidth. These are generally leased out to businesses who need to guarantee that they have this internet access for 99.9% of the month.

A cable operator, on the otherhand, might only guarantee you internet access at the advertised rate 40% of the time.

flowol is an internet based programme used to make flowcharts ")

A class might provide a set method (setter) and a get method (getter) for an instance variable in order to encapsulate the internal implementation of the class, and to isolate that implementation from the public interface of the class.

Even if the setter and getter does no more than directly set and get the instance variable, the public interface should use that paradigm in order to allow for possible future alteration of the implementation, while minimizing the impact of doing so.

Proper OOD/P (Object Oriented Design/Programming) should always make the implementation be private, even for derived classes. This reduces error, and reduces "lazy" coding techniques.

A 0 or 1 in a binary number is called a bit. A binary number is made up of only ones and zeroes.

* homogenise (blend) * hydrolyze( hydrolysis) * dehydration (removing water) * insoluble (does not dissolve) * soluble (dissolve)

A procedural programming language is one where programs are organized into blocks of code called variously "subroutines", "functions", or "procedures", each of which handles one particular task. The main function of the program (often actually called "main") then makes a series of calls to these procedures in order to archive its goal.

There are three ways to do repetitions in C as far as I know. The first is to use recursion (a function which calls itself) the second being a for loop and the third being a while loop, though both of these are basically the same thing. Here's a demonstration of using these three methods to compute the x raised to the power of y: (note this isn't the most efficient way of calculating the power of a number but it's good enough for an example)

//Recursion:

int pow(int base, int pwr){

if(pwr == 0){

return 1;

}else{

return base * pow(base, pwr - 1);

}

}

//For loop

int pow(int base, int pwr){

int i;

int result = 1;

//The for loop initialises i to the value of pwr, then

//runs the loop, subtracting 1 from i each time until

//i fails the test (i > 0) at which point the loop finishes

for(i = pwr; i > 0; i--){

result *= base

}

return result;

}

//While loop

int pow(int base, int pwr){

int result = 1;

while(pwr > 0){

result *= base;

pwr--;

}

return result;

}

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In C macros are a piece of code that is replaced by its value whenever it called from.

Syntax for defining a macro is :

# define Macro_Name Value

As:

# include<stdio.h>

# define three 3

int main(){

printf("%d", three);

return 0;

}

output: 3.

In above example three is a macro and its value is 3.

The place for defining macros are same as including a header file in a program.

qué relacion existe entre la fisica y la informática?

System Application and Products in Data processing. It's an ERP Software.

The size of an int variable in c is a function of the compiler implementation. It is usually a word in the underlying computer architecture. Original Microsoft C/C++ compilers for the 16 bit platform defined an int as 2 bytes. Current compilers for the 32 bit platform define an int as 4 bytes. The current ANSI C standard provides that an int is at least 4 bytes, but it could be higher, say 8 bytes on a 64 bit platform.

This is a question I asked myself when I was studying algorithms.

Algorithms are important because of how crucial they are to so many real world applications. Just a few examples are web searching, file sharing, file systems, compilers. Getting a computer science job without knowing anything about algorithms would severely limit you, probably would only be able to find a GUI programming job.

Almost all big companies like Microsoft, Google, Yahoo and Amazon use algorithms in their software and look for engineers who understand them very well. Having a very strong grasp of algorithms in a job interview would set you apart from all others who only simply know how to program.

Basically you need to study algorithms because they are used all the time in complex software projects.

In short you want job then learn algorithm.

An assignment statement sets the value of a named object. This can be used to initialise the object's value or to change the object's value. The object may be a constant or variable, however you can only initialise a constant, not change it.

int i = 42; // Assigns the value 42 to the integer variable named i.

i = 0; // Replaces the value 42 with the value 0.

const double pi = 3.14; // Assigns the value 3.14 to the constant named pi.

pi = 3.14159; // Compiler error; pi is constant!

It means "nothing", there is no data provided at all; just an empty value.

Contrary to the previous edit it does not mean "zero", "none" or "blank"; as zero is a number and none and blank can be regarded as data.

#include <iostream> void main() { using namespace std; int num, rem, sum=0; //Declaring variables cout<<"Enter a number :"<<endl; cin>>num; //Loop to calculate the sum of the digits of the given number. while(num!=0) { rem=num%10; num=num/10; sum=sum+rem; } cout<<"Sum of the digits is "<<sum<<endl; cin.get(); }

The advantage of contiguous memory allocation is

1. It supports fast sequential and direct access

2. It provides a good performance

3. the number of disk seek required is minimal

The disadvantage of contiguous memory allocation is fragmentation.

In software, an encoder takes some data and transforms it into a format suitable for storage or transmission.

In hardware, an encoder which takes multiple input lines and outputs the binary representation of the single input line which is set to high. Since it is difficult to guarantee that only a single input line will be high at the same time, a priority encoder is generally used instead.

A data strucutre is classified into two categories: Linear and Non-Linear data strcutures. A data structure is said to be linear if the elements form a sequence, for example Array, Linked list, queue etc. Elements in a nonlinear data structure do not form a sequence, for example Tree, Hash tree, Binary tree,etc. There are two ways of represneting linear data strucutresin memory.One way is to have the linear relationship betweent he elements by means of sequential memory locations. Such linear strucutres are called arrays. The other way is to have the linear relationship betweent he elements represnted by means of links.Such linear data strucutres are callled linked list.

There are three forms of loop commonly used in C/C++, the for loop, the while loop

and the do-while loop.

The for loop is most commonly used whenever an action is going to be performed a set amount of times. For example, to sum every element in an array:

for(i = 0; i < arraySize; i++)

{

sum = sum + array[i];

}

The while loop and do-while loop are commonly used to loop until a condition is met. The difference between the two is that the do-while loop goes through one iteration before checking its condition, while the while loop checks its condition before any execution of the loop.

Example do-while loop:

do

{

randomNumber = rand() % 10;

}while(randomNumber != 6);

Example while loop:

cout > number;

while(number < 0)

{

cout > number;

}

Binary is the simplest way to implement operations and information in a computer system.

However, It is not the only way.

But because of the nature and simplicity to switch electricity on and off it is a natural for computers.

Computers speak only one language which is composed of two sylables, namely "on" and "off". This is just like your light switch on the wall.

Computers are made up of millions of switches. This complexity allows logic functions, similar to human thought, to be performed.

This manifests as a very impressive operation only because a computer operates at such fast speeds.

Passing array elements to a function is achieved by passing the individual elements by reference or by value, just as you would any other variable. However, passing the entire array requires that you pass a pointer-to-pointer to the array along with the dimension(s) of the array.