Chapter 4 Notes for IT Management
Chapter 4 Notes for IT Management Bus Adm 230
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This 3 page Class Notes was uploaded by Bailee Gustafson on Tuesday March 1, 2016. The Class Notes belongs to Bus Adm 230 at University of Wisconsin - Milwaukee taught by George S. Nezlek, PhD in Spring 2016. Since its upload, it has received 12 views. For similar materials see Intro to Info Technology Management in Business at University of Wisconsin - Milwaukee.
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Date Created: 03/01/16
Chapter 4 Software: Systems & Application Software Computer Programs o Sequences of instructions for the computer Documentation o Text that describes program functions to help the user operate the computer system System Software o Set of programs that coordinate the activities and functions of hardware and other programs o EX: smartphones, personal tablets, personal computers Computer System Platform o Combination of a hardware configuration and systems software Application Software o Helps users solve particular problems o Resides on computer’s hard-disk o EX: graphics, databases, word processor, spreadsheet Sphere of Influence o Scope of problems and opportunities addressed by a particular organization Workgroup o Two or more people working together to achieve a common goal Operating System o “Kernel” is the heart of the operating system: controls most critical processes of OS o Provides user interface and controls common computer hardware functions User Interface o Allows individual to access and interact with the computer system Application Program Interface (API) o Set of programming instructions and standards for one software program to access and use services of another software program Virtual Memory o Hard disk space is allocated to supplement the immediate, functional memory capacity of RAM 5 Basic Task Management Techniques o Multiuser Two or more users are able to run programs at the same time on the same computer o Multiprocessing Supports running a program on more than one CPU o Multitasking More than one program running concurrently o Multithreading Different threads of a single program to run concurrently o Real Time Responds to input instantly Ubuntu o Linux-based operating system used on desktops, laptops, and servers Embedded System o A computer system (including a processor) implanted in and dedicated to the control of another device Utility Program o Program that helps to perform maintenance or correct problems with a computer service Middleware o Software that allows different systems to communicate and exchange data Service-Oriented Architecture (SOA) o Software design approach using modules to provide specific functions as services to other applications Propriety Software o One-of-a-kind program for specific application Off-the-Shelf Software o Software that’s mass-produced by software vendors Application Service Provider (ASP) o Company that can provide software, support, and computer hardware on which to run the software from the user’s facilities over a network Software as a Service (SaaS) o Businesses subscribe to web-delivered business application software Syntax o Set of rules associated with programming language Compiler o Special software program that converts the programmer’s source code into the machine-language instructions Interpreter o Program that converts the source code one statement at a time Software Bug o A defect in a program that keeps it from performing how it should Freeware o Software that’s available to the public for free Open-Source Software o Distributed, typically for free, with a source code
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