Information and PC Security

Information and PC Security
Information and PC Security, strategies created to defend data and data frameworks put away on PCs. Potential dangers incorporate the pulverization of PC equipment and programming and the misfortune, alteration, robbery, unapproved use, perception, or divulgence of PC information.

Procedure to Change Facebook Profile Picture without sending notification


Procedure to Change Facebook Profile Picture without sending notification

Facebook Profile Picture without sending notification
Facebook is used in massive level around the world. There are many settings given for user friendly social media platforms. A Facebook account asks for a beautiful Profile picture which is generally seen by anybody. Whenever we change the Facebook profile picture, it is notified to all who have been account in Facebook. This is so because profile picture is always be set to Public. But in this article we learn more about Procedure to change Facebook profile picture without sending notification.



What is Computer Software


What is Computer Software?

what is computer software
Software is a set of Instructions that enable user to interact with its hardware and perform various tasks. Software is an interface between user and computer. The program or software give command to hardware. It is responsible for controlling, integrating and management of hardware attached with the computer system. The term "software" is usually synonymous with Computer program and Application.  Internet Explorer, Microsoft Office, Chrome and Photoshop are all examples of software. Computer software also includes its operating system such as Windows or Mac or Linux.
Software is often divided into two main categories.  Systems software includes the operating system and all utilities that enable the computer to function. Applications software includes programs that do real work for users.

What is Computer Hardware


What is Computer Hardware ?

what is computer hardware
The definition of Computer hardware is defined here. Computer hardware is the physical components of a computer such as CPU, Monitor, Keyboard, Graphics Card, Sound Card, Speakers, Motherboard, Storage devices, etc. Hardware refers to the physical elements of a computer. A computer's hardware is comprised of many different parts, but perhaps the most important of these is the motherboard. The motherboard is made up of even more parts that power and control the computer. Without any hardware, your computer would not exist, and software could not be used. The hardware device like Logitech webcam allows users to take videos or pictures, and transmit them over the Internet. This is more about What is computer hardware.

How Computer Works


How Computer Works:

Today we use Computer having different types of properties and can perform millions of tasks in seconds. This is only possible due to complex architecture and reason behind how computer works. There are different types of hardware components assembled to make a single computer system. The major hardware and software responsible for working nature of Computers are illustrated below.
  
      CPU (Central Processing Unit)

How Computer Works
This hardware is called as the Brain of Computers. The CPU does the active "running" of code, manipulating data, while the other components have a more passive role, such as storing data. The computer does its primary work in a part of the machine, a control centre that converts data input to information output. This control centre called the central processing unit (CPU), is a highly complex, extensive set of electronic circuitry that executes stored program instructions.

What is Computer Introduction to Computer System


What is Computer Introduction to Computer System

What is Computer Introduction to Computer SystemToday, Computer is widely used and we must know what is Computer Introduction to Computer System. A Computer is an electronics device that accepts input, process data and produce output. A Computer is a programmable device that can store, retrieve and process data. An Input can be a single word or digit or sentence. Same is the case with output. But processing input data depends upon the program stored in Computer memory. In modern days, we see personal Computer, Laptops in every house. But several years ago no such personal Computers was there. A simple mechanical device like Abacus and Slide rule acts as simple Computer.


History of Computer


History of Computer

We can better understand the History of Computer by learning sequences from Pre 20th century till now. Earlier Computer was not so small or compact or portable. Computers were initially large machines that could fill entire room.
The first substantial computer was the giant ENIAC machine by John W. Mauchly and J. Presper Eckert at the University of Pennsylvania. ENIAC (Electrical Numerical Integrator and Calculator) used a word of 10 decimal digits instead of binary ones like previous automated calculators/computers. ENIAC was also the first machine to use more than 2,000 vacuum tubes, using nearly 18,000 vacuum tubes.