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Josias mwale

File:OsiasjpgJosias Mwale joined National Science and Technology Council as an Assistant Documentation and Information Technology Officer in 2011. He once worked for a college under the Ministry of Agriculture and Cooperative called Cooperative College located on the Leopards Hill Road in Lusaka Zambia.

Josias has some experience in Computer Networks and Graphics Design. His hobbies are watching soccer and reading education books including newspapers.

visual basic

Using Multiple Forms

All Windows applications have two types of windows: normal windows and dialog boxes. A normal window provides the main user interface for an application. For example, if you use Word, you use a normal window for editing your documents.

On occasion, the application will display a dialog box when you want to access a special feature. This type of window "hijacks" the application and forces you to use just that window. For example, when you select the Print option in Word, a dialog box appears, and from that point on, until you close the dialog by clicking OK, Cancel, or the close box, you can't go back and change the document the only thing you can use is the Print dialog box itself. Forms that do this are called modal. The form that you add in the next exercise is a simple modal form.

COBOL

COBOL (Common Business Oriented Language) was one of the earliest high-level programming languages. It was developed in 1959 by a group of computer professionals called the Conference on Data Systems Languages (CODASYL). Since 1959 it has undergone several modifications and improvements. In an attempt to overcome the problem of incompatibility between different versions of COBOL, the American National Standards Institute (ANSI) developed a standard form of the language in 1968. This version was known as American National Standard (ANS) COBOL. In 1974, ANSI published a revised version of (ANS) COBOL, containing a number of features that were not in the 1968 version. In 1985, ANSI published still another revised version that had new features not in the 1974 standard. The language continues to evolve today. Object-oriented COBOL is a subset of COBOL 97, which is the fourth edition in the continuing evolution of ANSI/ISO standard COBOL. COBOL 97 includes conventional improvements as well as object-oriented features. Like the C++ programming language, object-oriented COBOL compilers are available even as the language moves toward standardization.

Significant Language Features

The language that automated business Allows names to be truly connotative - permits both long names (up to 30 characters) and word-connector characters (dashes) Every variable is defined in detail - this includes number of decimal digits and the location of the implied decimal point File records are also described with great detail, as are lines to be output to a printer - ideal for printing accounting reports Offers object, visual programming environments Class Libraries Rapid Application Capabilities Integration with the World Wide Web

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