TAILIEUCHUNG - Lecture Computing for management - Chapter 6

Lecture 6 - Business data and information. After studying this chapter you will be able to understand: Data, number systems, decimal, binary number systems, bits and bytes, how computer store data? How computer represent data? | Business Data and Information Lecture 6 Summary of Previous In the previous lecture we have learnt What are the quality metrics in order to buy a monitor from a market. Size, resolution etc. Monitor technologies Strain due to wrongly choosing monitors. How to avoid strain while using monitors. Video cards and sound cards Summary of Previous We have seen a practical to set the resolution DPI settings of monitors. Today’s Topics Data Examples of data and its types. Number systems Decimal Binary Number Systems Bits and Bytes How computer store data? How computer represent data? Today’s Topics ASCII EBCDIC Unicode Information How Data is Converted into Information? Exercises Knowledge Data Sources Today’s Topics Direct and Indirect Data Sources Data Quality Matters Microsoft Word Practical Session What is Data? Data items refer to an elementary description of things, events, activities, and transactions that are recorded, classified, and stored but not organized to convey any specific meaning. Data items can be numbers, letters, figures, sounds, or images. Examples of Data Items Examples of data items are a student grade in a class, A+, A, B+, B-, etc the number of hours an employee worked in a certain week . 50, 40, 60 etc. Time . 12:30 What are the Types of Data Items? Types of Data are Text Multimedia sound files, avi etc. Numeric 0 1 2 3 4 5 Floating e 25 for scientific and engineering purposes Alpha Numeric A12, CIIT-Fall-001 etc. Number System Number Systems are used for, Expressing Numbers A Manner of counting Several different number systems exists. Decimal number system Used by humans to count Contains ten distinct digits Digits combine to make larger numbers As discussed in Lecture 1, a computer can understand only 1 and 0. A different number system is needed other then decimal. Hence it is a Binary Number System. How Computers Store Data? Binary number system A number system that has just two unique digits, 0 and 1 A single digit is .

• Tin học văn phòng
• Number systems
• Computing for management
• Tin học quản lý
• Lecture Computing for management
• Computer science
• Business data
• Queueing system
• nite number
• shop assistants
• a forming of queues
• Queueing systems
• without queues
• Some general types
• stochastic processes Download free ebooks at bookboon
• com 2
• Probability Examples c 9 – Stochastic Processes 2 © 2009 Leif Mejlbro & Ventus Publishing ApS ISBN 978 87 7681 525 7 Download free ebooks at bookboon
• com 3
• Stochastic Processes 2 Contents Contents Introduction 1 1
• 1 1
• 2 1
• 3 1
• 4 1
• 5 1
• 6 1
• 7 2 3 4 5 Theoretical background The Poisson process Birth and death processes Queueing theory in general Queueing system of innitely many shop assistants Queueing system of a nite number of shop assistants
• and with forming of queues Queueing systems with a nite number of shop assistants and without queues Some general types of stochastic processes The Poisson process Birth and death processes Queueing theory Other types of stochastic processes Index 5 6 6 8 11 11 12 15 17 19 37 52 117 126 The next step for top performing gradua
• Nhập môn Tin học
• Bài giảng Nhập môn Tin học
• Hệ thống số
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• Lecture Digital logic design
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• Lesson Instructor materials
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• Hexadecimal numbering system
• Classroom presentation
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• EEE130 Digital electronics
• Operations and codes
• Binary coded numbers
• Complements of binary numbers
• Foundations of Number Theory
• Divisibility
• Division Algorithm
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• Binary coded decimal
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• Analogue quantities
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• Binary Hexadecimal conversion
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• Describing logic circuits
• Digital arithmetic
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