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Understanding Hooke's Law: The Foundation of Elasticity| Chapter 5 Physics 9th

HOOKE'S LAW   Introduction In physics, Hooke's Law is one of the fundamental principles governing how objects deform under external forces . Named after the 17th-century British physicist Robert Hooke, this law provides a crucial understanding of the behavior of elastic materials, such as springs and rubber bands. Whether stretching a rubber band or compressing a spring, Hooke's Law helps explain what happens when forces act on these materials. What is Hooke's Law: Hooke's Law states that the force F needed to extend or compress a spring by some distance x is proportional to that distance. Mathematically, it is expressed as: F= -kx Here k represents the spring constant, which is the measure of the stiffness of the spring, and x is the displacement from the displacement position.  The negative sign indicates that the force exerted by the spring is in the opposite direction of the displacement.  Understanding the Spring Constant: The spring constant k is a critical co
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Introduction to Computers, Its Applications and Areas, Basic Task and Data and Information

 

 Introduction To Computers

Table of Contents:

  • Introduction to Computers
  • Applications and Areas of Computers
  • Basic Task of a Computer
  • Information and data
  • Information Processing Cycle

  • Introduction to Computers:
=> What is Computer

Computer can be defined as an electronic device which is capable of:

  • Receiving Input
  • Processing the data on the basis of given sets of instructions.
  • Producing the Output.
  • Storing the information (If Needed)

Introduction to Computers, Its Applications and Areas,Basic task and Data and information
Is this a Computer?
Introduction to computers, its Applications and Areas,basic Task and data and Information
  • Can we give it an input?
  • Can it process the input?
  • Can we get an output from it?
  • Storage (if necessary).
So as we know we can give it an input, it will process the input and will provide us an output and storage can be done as well. So therefore it is a Computer.
Computers, its applications and areas, Basic task and data and information

  • Can we give it an input?
  • Can it process the input?
  • Can we get an output from it?
  • Storage (if necessary).
So as we know we can give it an input, it will process the input and will provide us an output and storage can be done as well. So therefore it is a Computer.
So we can say that we are surrounded by Computers.
  • Applications and Areas of Computers:
Now a days Computers are backbone of every field.
Such as,
  • Education:
In Educational field computers are used in Schools, Colleges,
Introduction to computers, its applications and areas, basic task and data and information

Universities etc.
Introduction to computers, its applications and areas, basic task and information
  • Military:
In the field on Military, lunching of a missile is usually controlled by a Computers.
introduction to computers, its applications and areas, basic task of a computers and data and information
Trajectory of any missile is also controlled by a computers. Radar System is controlled and monitor by use of a Computers. Satellites Communications are usually done by the use of a computer.
Introduction to computers, its applications , its basic task and data and information
  • Research:
Simulations of certain circuits, or systems is carried out using a computer. Usage of different software is possible because of Computers. Taking Surveys about any research Topics using a
Introduction to computers, its applications and areas,
Computers. 
  • Entertainment:
In Entertainment prospective it is used for listening to music, watching movies, 3D gaming, 3D Cinemas etc.
  • Medicine:
In the field of medicines, it is used in Surgery, Remote treatment, X-Ray, Ultrasound,  CT Scan etc.
  • Basic Task of a Computer:
The basic task of any computer is to convert the data (meaningless) into meaningful information.
DATA AND INFORMATION:
Data is the collection of Facts and Figures.
Processed data is called Information.


Basic Task of a Computer
FACTS:                                                    FIGURES:
  • Anything than number.                     =>Numbers
  • Character                                          => Not a picture or graph
  • String
  • Picture
  • Graph
Data and Information

  • Information Processing Cycle:
Information Processing cycle deals with how computer process the data or through which steps it goes when it is processing the data. [See figure below]
Information Processing cycle
Video will be uploaded soon...




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