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 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 e.g 50, 40, 60 etc Time e.g 12:30 What are the Types of Data Items? Types of Data are Text Multimedia sound files, avi etc Numeric Floating 10.23 2.4578 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 Microsoft Word 2007 Microsoft word It is a text processor to create documents Templates for different types of documents is also avalible Web pages can be created using Word 2007 Simple formatting Text: Font, size, color, bold/italic/underline Layout: Bullets, numbering, alignment Welcome to this lecture Changing font Welcome to this lecture Bold/Italic/Underline How to change text color Changing Text Colors How to change text size Changing Text Size Alignment of text The Thefirst first firstimpression impression impressionand and andview viewofofa adocument a document document isisvery isvery very important for the reader The options listed underneath areare the the the most most most important important important ones ones These These These can can can make make make thethethe document document nice nicelooking, nice looking, looking, but also but but very also bad very verybad A bad A A professional professionaldocument document documentshould should shouldhave havea astandard astandard standard font font font (like (like Times Times TimesNew New NewRoman Roman Romanoror or Arial), Arial), Arial), appropriate appropriate appropriate size size size (normal (normal text sizetext 12),size and12), black and color black color The layout The layout layout of of theofthe text the should text should should makemake the make reader the the reader reader comfortable comfortable–––itititshould should shouldbe be beeasy easytoto toread read read InInIn thesis, thesis, thesis, ororor other large documents, the text is often aligned to to both both the the left left and and right right margins margins This This creates creates aa clean clean cleanlook look lookat at at both sides of the text Additional extra space space are are put put in in between words between as necessary words as necessary Alignment of Text 2,5 cm 2,5 cm 4,0 cm 2,5 cm 2,5 cm 4,0 cm 0 cm Left Page Setup / Margins Line Spacing Word Count Heading Texttextexttexttexttexttextexttexttextexttex texttexttexttexttextexttexttext Heading Texttextexttexttexttexttextexttexttextexttex texttexttexttexttextexttexttext Heading Texttextexttexttexttexttextexttexttextexttex texttexttexttexttextexttexttexttext Heading Texttextexttexttexttexttextexttexttextexttex texttexttexttexttextexttexttext Heading and Table of Contents Picture and Crops Adding References / Citation Summary Today’s main topics were, Data Data Representation/ Storage Information and its processing Knowledge from Information Data Quality GIGO MS Word Practical Changing Font, Size, Color, Underline, Adding Reference, Picture Crop, Developing Table of Contents ... equals one character; over 65 ,000 combinations; used for language symbols ASCII =4 0 1 0 EBCDIC =4 1 1 0 ASCII Table- Example Character Decimal @ 64 A 65 B 66 C 67 D 68 E 69 F 70 G 71 H 72 I 73 Detail... Exercise Raw Data 42, 63 , 96, 74, 56, 86 Ali marks in the six subjects Context Processing Information ??? Exercise 2: Solution Adding Ali scores would give us a mark out of 60 0 that could then... Numeric Floating 10.23 2.4578 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