Page 1 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 1/17 Chapter 1: Introduction to Computers Ref Page Page 2 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 1/17 Chapter 1: Introduction to Computers Ref Page Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 2/17 Chapter 1: Introduction to Computers Ref Page Learning Objectives Learning Objectives In this chapter you will learn about: § Computer § Data processing § Characteristic features of computers § Computers’ evolution to their present form § Computer generations § Characteristic features of each computer generation 01 Page 3 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 1/17 Chapter 1: Introduction to Computers Ref Page Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 2/17 Chapter 1: Introduction to Computers Ref Page Learning Objectives Learning Objectives In this chapter you will learn about: § Computer § Data processing § Characteristic features of computers § Computers’ evolution to their present form § Computer generations § Characteristic features of each computer generation 01 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 3/17 Chapter 1: Introduction to Computers Ref Page § The word computer comes from the word “compute”, which means, “to calculate” § Thereby, a computer is an electronic device that can perform arithmetic operations at high speed § A computer is also called a data processor because it can store, process, and retrieve data whenever desired Computer Computer 01 Page 4 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 1/17 Chapter 1: Introduction to Computers Ref Page Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 2/17 Chapter 1: Introduction to Computers Ref Page Learning Objectives Learning Objectives In this chapter you will learn about: § Computer § Data processing § Characteristic features of computers § Computers’ evolution to their present form § Computer generations § Characteristic features of each computer generation 01 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 3/17 Chapter 1: Introduction to Computers Ref Page § The word computer comes from the word “compute”, which means, “to calculate” § Thereby, a computer is an electronic device that can perform arithmetic operations at high speed § A computer is also called a data processor because it can store, process, and retrieve data whenever desired Computer Computer 01 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 4/17 Chapter 1: Introduction to Computers Ref Page Data Processing Data Processing The activity of processing data using a computer is called data processing Data Capture Data Manipulate Data Output Results Information Data is raw material used as input and information is processed data obtained as output of data processing 01 Page 5 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 1/17 Chapter 1: Introduction to Computers Ref Page Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 2/17 Chapter 1: Introduction to Computers Ref Page Learning Objectives Learning Objectives In this chapter you will learn about: § Computer § Data processing § Characteristic features of computers § Computers’ evolution to their present form § Computer generations § Characteristic features of each computer generation 01 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 3/17 Chapter 1: Introduction to Computers Ref Page § The word computer comes from the word “compute”, which means, “to calculate” § Thereby, a computer is an electronic device that can perform arithmetic operations at high speed § A computer is also called a data processor because it can store, process, and retrieve data whenever desired Computer Computer 01 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 4/17 Chapter 1: Introduction to Computers Ref Page Data Processing Data Processing The activity of processing data using a computer is called data processing Data Capture Data Manipulate Data Output Results Information Data is raw material used as input and information is processed data obtained as output of data processing 01 Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Computer Fundamentals: Pradeep K. Sinha & Priti Sinha Slide 5/17 Chapter 1: Introduction to Computers Ref Page 1) Automatic: Given a job, computer can work on it automatically without human interventions 2) Speed: Computer can perform data processing jobs very fast, usually measured in microseconds (10 -6 ), nanoseconds (10 -9 ), and picoseconds (10 -12 ) 3) Accuracy: Accuracy of a computer is consistently high and the degree of its accuracy depends upon its design. Computer errors caused due to incorrect input data or unreliable programs are often referred to as Garbage- In-Garbage-Out (GIGO) (Continued on next slide) Characteristics of Computers Characteristics of Computers 02Read More
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