The author holds a Bachelor Degree in Mathematics, a Master Degree in Management and a Doctoral Degree in Business Administration. He obtained the DBA degree from University of South Australia. He has been involved in programming for more than 15 years. He created the popular online Visual Basic Tutorial at www.vbtutor.net in 1996 and since then the web site has attracted millions of visitors .It is the top ranked Visual Basic tutorial website in many search engines including Google. He has also written a few Visual Basic related books. One of the books, Visual Basic 6 Made Easy was published by BookSurge LLC, an Amazon.com publisher.
This book will help you learn how to to tell the IBM MVS mainframe computer how and when to execute your programs. To do this you use a language called JCL, for Job Control Language. You use JCL to tell the mainframe how much memory and other resources your programs will need, how long each program should be allowed to run, what order to run the programs in, where to get the input data, where to put the output data, and so on. JCL controls almost everything related to running programs on MVS.
If you have a comfortable understanding of ordinary English language and are looking for a quick and easy way to learn JCL, this book is for you.
If you already know a little JCL and what you really want is a handy reference guide to bail you out on commonly occurring problems with JCL, youre in luck again, this book is for you there too.
If youre looking for an introduction to some of the more advanced and obscure tricks you might have seen people use in MVS, you guessed it, this book is for you on that as well.
How can this book do all that at once? Because, contrary to its reputation, JCL is not particularly difficult; it just has esoteric aspects that make it seem difficult if you have nobody to explain things. Once explained, all seems clear, as with most things.
This book can be used as a reference book, there are numerous examples and the index will assist you in finding what you are looking for when you need to find a solution to a problem. You can also read the book as an introductory text, from start to finish. Things are explained in plain ordinary language, so even if you have never before seen one line of JCL, you should have no trouble with the text; and by the time you get halfway through the book people should be starting to see you as an expert, probably to your great surprise. When you read the book straight through in this way, you will come across a lot of obscure but useful information to help you in your routine use of MVS.
JCL is a language like any other. If you travel to an area where you do not speak the language, you get a certain amount of satisfaction when you are able to make yourself understood using that language, be it to make a phone call, or ask for directions, or just to ask the price of something. The more you use the language the more you feel at ease using it. Having good guidebooks saves you a lot of learning time. And who doesnt love it when other people start mistaking us for locals and asking us the directions? Thats the same sort of feeling youll get the first few times your co-workers ask you to help them with their JCL problems; and that will start happening a lot sooner than you might think, because,contrary to appearances, most of them dont know much more about it than you do now. Thats why they have so much trouble explaining it to you. Thats why you want a good book on it now.
JCL is not generally taught in schools and Universities, so people who need to use JCL generally have to learn it on the job. For the most part they have a difficult time, largely because the people they learn from dont have a good grounding in JCL either. Those other people only learned enough to get by when doing a few things they needed to do; and those few things may not be the same things you need to do now. So your co-workers can be of only limited help to you with learning JCL.
Whether your job is programming, operations, or anything else, whatever your reason for wanting to learn JCL, this book is designed to help you. It will help you learn JCL in the first place and thereafter it will be a useful reference you can keep coming back to, like an old friend, to help you out when you get into trouble.
A variety of examples make learning Visual Basic Features concepts both fun and practical. This manual is organized in such a manner that students and programmers with prior knowledge of programming can find it easy, crisp and readable.
Programming basics in Visual Basic 6.0 with Simple language has been adopted to make the topics easy and clear to the readers
Topics have been covered with numerous illustrations and tested VB programs through Microsoft Visual Studio 6.0.
Enough examples have been used to explain various Programming Constructs effectively. This manual also consists of tested programs so as to enable the readers to learn the logic of programming
Use of various controls are simplified through real world applications.
All Visual Basic 6.0 Standard Controls and important activex controls are covered.
Samples are presented in easy to use way through Microsoft Visual Studio 6.0.
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v) Learn how to package and distribute your applications.
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i) Understand the basic concepts of Visual Basic 2013 programming
ii) Create your own Visual Basic 2013 programs right from the beginning
iii) Get programming ideas from many interesting Visual Basic sample programs.
iv) Modify the codes easily to suit your needs.
This book can also be used as a text book for students who are taking Visual Basic courses or beginners. It can also be used as a reference book for teachers or lecturers who are teaching introductory computer programming courses.