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Types of operating systems

Today there are lot of operating systems in the internet but actually they are only based on these main operating systems. What we see on internet is that windows is an OS, Linux is an OS but actually it is not really true. These are true only in simple understanding but when we explore computers more then we see there are lot of types of operating systems available in the market. These are written below...... Batch Operating System Multi-programming OS. Time-sharing or multitasking operating systems Distributed operating System Network operating System Real Time operating System Hard real--time systems Soft real--time systems Batch operating system: These operating system can not interact directly with the computer. Batch processing is a technique in which an Operating System collects the programs and data together in a batch before processing starts.   Multi-programming OS: These type of OS are able to run multiple jobs simultaneously in the memory. For it, memory is considered as a

Hello World program in different different languages

C: #include<stdio.h> int main(){     printf("Hello World\n");     return 0; }   C++: #include<iostream> using namespace std; int main(){     cout<<"Hello World"<<endl;     return 0; }   Python: print("Hello World\n")   Node JS: console.log("Hello World");   Java Script: document.write("Hello World");   Objective C: #import <Foundation/Foundation.h> int main(int argc, const char* argv[]){      @autoreleasepool{          NSLog(@"Hello World");      }      0; } JAVA: class HelloWorld{     public static void main(String[] args){          System.out.println("Hello World");     } } BASH: echo "Hello World"

Basic Elements of Communication System(Networking)

A Communication is the process of transferring messages from one point to another. It is a very vital process in a network. When two networks are connected with each others they have to share data to each others so this process of communication system has three basic elements which are as follows - 1. A sender (source), which creates the message to be transmitted. 2. A medium, which carries the message, 3. A receiver (sink), which receives the message. Data communication is the function of transmitting data from one point to another. In this case, the sender and receiver are normally machines, in particular, computer devices (computers, terminals, peripheral devices like printers, plotters, disks, etc), and the transmission medium may be telephone lines, microwave links, satellite links, etc. However, the messages that are transmitted are only in data form, but not in voice conversations form. Hence, the electronic systems, which transfer data from one point to another, are called dat

A technical preview of an Operating System

Operating System (OS): An Operating system consists of a set of programs which controls, co-ordinates and supervises the activities of the various components of a computer system. Its function is to link between the computer hardware and the user. An operating system is a software or a series of programmes, which performs various types of functions in order to manage and organize file so". Objectives:  There are lot of objectives of an operating system, actually it covers the birth of a perfect operating system. A user is just like a wanting animal they just want everything. But as a developer we are just tying to make our software more & more better as per user requests. These are some main objectives ------ To describe the basic organization of computer systems. To provide a grand tour of the major components of operating systems. Provide more convenient environment for users. Provide maximum utilized performance to users as per hardware existance. Computer Startup: When a c

Application Softwares (types of softwares)

  Application Software:   An application software always works under a system software. These softwares are generally a set of one or more programmes, designed to solve a specific problem, or do a specific task e.g. An application software for payroll processing produces pay slips as the major output, and an application software for processing examination results produces mark sheets as the major output along with some other statistical reports.    And also if a person is writing a program to solve his/her personal and particular problems is also comes under the application software. These programs included in an application software package are called application programmes and who made these programs are also known as application programmers. The most commonly known application software are 1. Word Processing Software: A word processing software enables us to make use of a computer system for creating editing, viewing, formatting, storing retrieving and painting documents (written

Types of Softwares

Software generally categorized into two types, which are as follows : System Softwares Application Softwares.        System Softwares:      A system software is a set of programs which is designed to control different-different operations and more extend processing capabilities of a computer system. It can perform these functions one or more depending on program requirements on a given task. Supports the development of other application software. Supports the execution of other application software. Handles the effective & efficient use of various hardware resources, such as CPU, memory peripherals etc.  Controls and communicate with the operation of peripheral devices such as printer disk, tape etc.     And system software makes the operation of a computer system more effective and efficient as we can see in its functions. It help the hardware components work together. These programme which are included in a system software package are called system programmes, and the programme

How to Hack Your Friends Screen Lock

Password Hacked:        Hello, friends, today we will discuss on a phishing page tool which can capture a device passcode. This is just a github tool and we will tell you how to use this, you can impress your friends using this tool and it is really not hard to use it.  You should only have an android device with termux app installed, or you can do this thing with your computer system also. Today i am only showing you how to do these things only with your android device. Please follow each steps carefully to get perfect run of this tool : First , open your play store on your android mobile phone and then search  TERMUX  and you have to download it. then it need approx 1 min for installation in your android phone and then you have to write some keywords which help to execute you have to on your network connection. type pkg update  then hit enter. Now type pkg upgrade  then it will automatically upgrade your envoirment. Then you have to clone this tool in termux, Tool link (LockPh

How to Hack Your Friends Camera

  Camera Phishing:      Hello, Friends, today have tried to tell you an interesting hack about the camera of your friends and impress them with the help of an Amazing tool here no pc or computer is required so we are starting some simple steps which help you to do cam-phishing . First , open your play store on your android mobile phone and then search TERMUX and you have to download it. then it need approx 1 min for installation in your android phone and then you have to write some keywords which help to execute  you have to on your network connection. Write pkg update then it starts executing and after if it gives you the option to check yes or no then type Y else it will automatically execute. Write pkg upgrade then it will execute some functions. Then you have to write  https://github.com/techchipnet/CamPhish.git and after that press enter. then exit you will come out of termux then again open termux and then again write all steps from 3 to 5  press enter . then write

A Digital Computer

 A digital computer is a digital system that performs various computational tasks. The word "Digital" implies that the information in the computer is represented by variables that take a limited number of discrete values. These values are processed internally by components that can maintain a limited number of discrete states. These discrete values are taken by the decimal digits 0 to 9.  The first electronic digital systems was developed at 1940s late, it was primarily only used for some numerical computations.  As we all know a digital computer uses binary number system & it can only understand a binary number. And a binary number has only 2 digits 0 & 1 . Let me tell you one more interesting thing is that a binary digit is called "bit" here. That means if we use 0 it means its a bit, and vise versa.  In a digital computer all information is only represented in group of bits. After using various programming techniques & some algorithms, these grou