COMPUTER CONCEPTS NATIONAL ASSOCIATION FOR THE BLIND NEW DELHI Computer Concepts Hardware & software concepts explained for persons with low or no vision for the students of Intel Technology Training Lab at National Association for the Blind‚ New Delhi Produced and Published by National Association for the Blind Sector-5‚ R.K Puram‚ New Delhi E-mail: nab@vsnl.com First Edition October 2001 Reprint: February 2005 TABLE OF CONTENTS
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to Computers and C++ Programming 1 What is Computer? Computer Organization Computer Languages C++ Your First Program in C++ Variables and Operators Computer Programming (HKU SPACE HDIT 10/11) 2 Computer Programming (HKU SPACE HDIT 10/11) 3 Computer ◦ Device capable of performing two major functions 1. 2. Computations Making logical decisions Computer programs Hardware ◦ Sets of instructions used by computers to process
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Uses of Computers in different Fields Our daily encounters with and dependence upon technology is almost invisible as it takes the shape of electronic climate control system‚ wireless communication systems such as phones and pagers‚ automatic tellers to dispense money. Magnetically striped cards to facilitate consumer transactions‚ cable and satellite television‚ auto mobiles and mass transit. Free trade agreements have led to globalization of commerce and scientific debate about global
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Computer is a processing machine which processes raw data to produce meaningful data. It has tremendous change with comparison to calculator. Characteristics of Computers: - Computers have got their importance due to the following characteristics: - 1. Accuracy: - Computer performs every operation with equal and high accuracy. Errors can occur in a computer due to only human mistakes‚ weaknesses and imprecise thinking. 2. Repeatitiveness: - Once the set of instructions are permanently
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organization’s system. The primary disadvantages are that it requires a lot ofmedia to store such a large file‚ and the backup can be time consuming. A differential backup is the storage of all files that have changed or been added since the last full backup. The differential backup works faster and uses less storage space than the full backup‚ but each daily differential backup is larger and slower than that of the day before. For example‚ if you conduct a full backup on Sunday‚ then Monday’s backup
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101: COMPUTER LITERACY QUIZ CHAPTER-2 Name_______________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) ________ is data that has been organized or presented in a meaningful fashion. 1) _______ A) A number B) Information C) A symbol D) A character 2) Which of the following is NOT one of the four major data-processing functions of a computer?
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Basics of Computer :: 1 1 Basics of Computer 1.1 INTRODUCTION In this lesson we present an overview of the basic design of a computer system: how the different parts of a computer system are organized and various operations performed to perform a specific task. You would have observed that instructions have to be fed into the computer in a systematic order to perform a specific task. Computer components are divided into two major categories‚ namely‚ hardware and software. In this lesson we
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all types of hospital information systems are supported in client-server architectures for networking and processing. Most of work positions for hospital information systems are currently resident types. After beginning the Mobile computing tablet computers and smartphone applications are used. Enterprise hospital information system with Internet architectures havebeen successfully deployed in public healthcare territories and have been widely adopted by further entities. The hospital
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Generations of Computer Computer Age: Past‚ Present‚ and Future The First generation The Second Generation The Third Generation The Fourth Generation The Fifth Generation The Computer Age 1951-1958 The First Generation Vacuum Tube – – Rapid changes Four generations over 50 years Trends across generations – Decrease size – Increase speed Magnetic core memory Storage – – Heat Burnout Machine language Punched cards Tape (1957) Characteristics of 1st Generation Computers Computers
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A brief description of the industry: The Computer And Peripherals Industry is composed of a diverse group of companies. It produces a wide range of products for sale to just about all businesses and consumers. The industry tends to lead the economic cycle‚ and is very competitive. This industry markets a wide range of products and services‚ many of which are tied to mainframe and server computers‚ personal computers‚ and storage devices. A number of offerings include gear to connect this hardware
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