Software - PowerPoint PPT Presentation

Loading...

PPT – Software PowerPoint presentation | free to download - id: 78d786-ZGU3Y



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Software

Description:

Software Information Systems and Management Software Computer programs: A sequence of instructions for the computer. Systems Software The set of programs designed to ... – PowerPoint PPT presentation

Number of Views:74
Avg rating:3.0/5.0
Slides: 17
Provided by: Heathe281
Category:
Tags: crisis | software

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Software


1
Software
  • Information Systems and Management

2
Software
  • Computer programs
  • A sequence of instructions for the computer.
  • Systems Software
  • The set of programs designed to coordinate the
    activities and functions of the hardware and
    various programs throughout the computer system.
  • Applications Software
  • Programs that help users solve their particular
    computer problems

3
Systems Software
  • Operating Systems (OS)
  • A set of computer programs that controls the
    computer hardware and acts as an interface with
    application programs
  • User Interface
  • The element of the OS that allows individuals to
    access and command the computer system.
  • Graphical User Interface (GUI)
  • Uses icon and menus to send commands

4
Memory Management
  • Controls how memory is accessed
  • Virtual Memory
  • Allocate space on the hard drive to supplement
    primary memory capacity
  • Paging
  • Process of swapping programs or parts of programs
    between primary meory and the hard drive

5
Capabilities
  • Multitasking
  • More than one task resident in PC primary memory
  • Time-Sharing
  • More than one person can use the computer at the
    same time
  • Scalability
  • The ability of the computer to handle an
    increasing number of concurrent users

6
Computers and Humans
  • Computers
  • Fast
  • Accurate
  • dumb
  • Humans
  • Slow
  • Innacurate
  • Smart

7
More Capability
  • Network Capability
  • Aids users in connecting to a network
  • Access to System Resources
  • User identification and passwords
  • File Management
  • Ensure files in secondary storage are available
    when needed
  • Ensures files are protected from unauthorized
    access

8
Even More Capability
  • Virus detection
  • File compression
  • Spam and pop-up blockers
  • Middleware software that allows different
    systems to communicate and transfer data back and
    forth

9
Application Software
10
Proprietary Software
  • A one-of-a-kind program for a specific
    application, usually developed and owned by a
    single company

11
Off-the-Shelf Software
  • Existing software program that is purchased
  • Must meet 90 of functional requirements
  • Sports Jacket

12
Personal Application Software
  • Software Suite
  • A collection of application programs packaged in
    a bundle
  • Workgroup Application Software
  • Software that supports teamwork even in multiple
    locations
  • Enterprise Application Software
  • ERP

13
Programming Languages
  • Sets of keywords, symbols, and a system of rules
    for constructing statements by which human can
    communicate instructions to be executed by a
    computer.

14
The Evolution of Programming Languages
  • Machine Language
  • Consists of 1s and 0s
  • The only language computers understand
  • Assembly language
  • Substitutes mnemonics or macros for numeric code
  • Third Generation (Procedure Oriented)
  • Fourth Generation (Event based)
  • 5GL (Incorporates AI)

15
Language Translation
  • Source Code
  • Object Code
  • Compiler
  • Interpreter

16
Software Crisis
  • Excess Demand
  • Development Backlog
  • Hidden Backlog
  • Can 4GLs Help
  • Why the Hesitation
  • No Standards
  • Erodes Organizational Power
About PowerShow.com