Darrell W Hajek

Many people play lotteries of various kinds. Lotteries are big business. People use lots of different strategies for choosing number combinations to play in these lotteries, but if any of those strategies really worked, the lottery business would shut down. However, although there are no really good strategies for winning lotteries, there are lots of really bad strategies, strategies that give the player an even worse chance of winning than if they were to simply choose random entries with no strategy at all. The basic rule is to avoid entering duplicates of possible winning combinations. This book provides computer programs that identify collections of possible lottery entries with minimal duplication of combinations.

The software suite LibreOffice provides an alternative to the widely used (but rather expensive) Microsoft Office suite. The fact that LibreOffice can be downloaded free should make it extremely attractive to a student just beginning to learn how to use a computer.This book is intended for students with little or no experience with computers. It introduces the concept of a file, then describes how to utilize and navigate a file storage system. It gives brief descriptions and examples of how to use LibreOffice Writer, LibreOffice Calc and LibreOffice Impress. It was written primarily in response to the increasing prices of the texts being used in laboratories supporting computer literacy courses. (The prices had increased to the point where students actively resisted purchasing them.) Another factor was the deteriorating support provided by the companies publishing those texts. The aim of this book is to give a beginning student enough tools to make the programs (and his/her computer) useful. The book is intended as an introductory text, not a reference manual. After a student has begun using the programs, there are many resources (easily available) to help expand his/her capabilities as needed.

This book is intended as an introductory text for students with little or no experience in using computers. It introduces the concept of a file, then describes how to utilize and navigate a file storage system. It gives brief descriptions and examples of how to use Microsoft Word, Microsoft Excel and Microsoft PowerPoint. The book is not intended as a reference manual. The idea is to give a beginning student enough tools to make the programs useful. After a student has begun using the programs, there are many resources (easily available) to help expand his/her capabilities. All of the programs in the Microsoft Office suite easily available have "Help" features and Microsoft provides extensive product support and there are also numerous online tutorials. ContentsIntroduction1.1 What is a Computer1.2 GUI's1.3 Notepad 1.4 Accessing the Internet1.5 E-MailWord Processing2.1 Microsoft WordSpreadsheets3.1 Microsoft ExcelPresentation Programs4.1 Microsoft PowerPoint

This is an introductory text for a basic computer literacy course. It was written because we found that most of the available texts were extremely expensive (up to and over $150.) We felt that this was, not only excessive, but also counterproductive. Very few students would be likely to buy this kind of text at that price. We have tried to include all of the material necessary for an introductory computer literacy course, but, in order to keep a low price for our students, we have attempted to include ONLY what would be necessary for such a course. Contents include: 1. Introduction - History of computer development, different classes of computers, networks and communication, information processing cycle 2. Computer Components - CPU, memory, secondary storage, input, output and communications devices, 3. Computer Software - System software (operating systems, utility programs), application programs, ethical issues related to software 4. The System Unit - Motherboard, CPU, Types of Memory, Secondary Storage, Data representation, connecters and ports 5. Input - Keyboards, scanners, pointing devices (mouse, trackball, touchscreen, ...), 6. Output - Monitors, projectors, wearables, printers, fonts, audio output 7. Storage - Hard disk drives, optical storage, obsolete media, cloud storage 8. Networks and Internet - Internet development, Internet services (WWW, e-mail, FTP, ... ), e-commerce, Internet architecture (HTML, TCP/IP, routers, servers, ... ), social issues, security.