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![Page 1: 1 Principles of Information Technology Introduction to Software and Information Systems Copyright © Texas Education Agency, 2014. All rights reserved.](https://reader036.fdocuments.us/reader036/viewer/2022082713/5697bfa71a28abf838c98fea/html5/thumbnails/1.jpg)
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Principles of Information Technology
Introduction to Software and Information Systems
Copyright © Texas Education Agency, 2014. All rights reserved.
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Course Objectives
Define terms associated with software and information systems
Identify how the terms relate and function
Demonstrate how software and information systems work together giving instructions to computers
Copyright © Texas Education Agency, 2014. All rights reserved.
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Software
Software: the complete set of programs, documentation and procedures associated with a computer systemSystem software controls integrate and manage the
components of a computer systemApplication software are programs used to perform
specific tasks such as word processing, spreadsheets and presentation graphics
Copyright © Texas Education Agency, 2014. All rights reserved.
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Information Systems
Information System: is a computer application that helps you create, control, store, locate and access data (information)Ex. e-mail, grading programs, social networking
websites, micro-blogging networks Acts as an interface between people and technology
Copyright © Texas Education Agency, 2014. All rights reserved.
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Information Systems
Compilers: a translator that converts source code into instructions (object code) that the computer can understand so it can execute a specific function
Copyright © Texas Education Agency, 2014. All rights reserved.
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Source Code
Source Code
Source Code
ObjectCode
ObjectCode
ObjectCode
Linker
Executable
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Information Systems
Interpreter: a computer program that takes the source translation and executes the specific function step by step
Compilers and Interpreters: the main ways that programming languages are used to perform certain functions
Copyright © Texas Education Agency, 2014. All rights reserved.
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Source Code
ExecutableInterpreter
1.
2.
3.
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Information Systems
String: a sequence of characters or finite sequence of symbolsStrings are important and useful data types used in
programming languagesEx. robot.jump();
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Information Systems
Character: a unit of information that corresponds to a form of computer languageExamples are letters, punctuation marks (“.”), numerical
digits, symbols and whitespace
Integer: a quantity represented by a sequence of digitsDate: sequence of integers typically used for month,
day, and year Ex. 07/04/2015
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Information Systems
Computer Language: a formal language designed to communicate instructions to a computer
Copyright © Texas Education Agency, 2014. All rights reserved.
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