Network Engineering and Administration
I. What is Networking?
A single computer with a decent set of productivity tools (word processing, spreadsheets, relational databases, etc.) is capable of increasing the productivity of a human being. Given that the whole is greater than the sum of its parts, networking computers together can increase the productivity of all aspects contained within a professional [...]
Relational Database Management Systems (RDBMS)
I. Introduction
If you dive head first into the world of databases like I have, you will first learn the difference between raw data and information. Raw data are facts that have not yet been organized and/or analyzed. Once the data is organized, analyzed, and processed, it then is used to reveal useful and meaningful information. Information [...]
The Project Life Cycle (PLC)
Introduction
On February 1, 2008, I wrote an article titled, Java Infix to Postfix && Evaluator. Such a program is small potatoes compared to enterprise level coding, however, it grasps the concept of implementing a data structure in an object-oriented environment with a high-level programming language. Such an activity in the Information Technology (IT) world is performed by [...]
The Systems Development Life Cycle (SDLC)
An information system records, processes, organizes, and outputs data for end-users of an organization including, but not limited to, small businesses, corporations, and government agencies. The terms information systems (IS) and information technology (IT) are closely related and sometimes interchangeable although IS is business-focused while IT is more technology-oriented. Sometimes an information system is requested [...]
Java Infix to Postfix && Evaluator
Description:
This program inputs a mathematical expression as a string in infix notation, converts infix notation to postfix notation, evaluates the expression using stack data structures, and outputs the result. This program will work for all of the “Please Excuse My Dear Aunt Sally” order of operations except for exponents(^). This program will also consider Modular [...]