handout 1

* Property of STIPage 1 of 9

Software

I0065

Software

Software Definition

Software Related Problems

Software Components

Software Characteristics

Software Applications

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* Property of STIPage 3 of 9

Software

I0065

Evolution of Software

The early years Batch orientation Limited distribution Custom software

The second era Multi-user Real-time Database Product software

The third era Distributed systems Embedded intelligence Low-cost hardware Consumer impact

The fourth era Powerful desktop systems Object-oriented technologies Expert systems Artificial neural networks Parallel computing

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* Property of STIPage 2 of 9

Software

I0065

Software

Computer instructions that when executed provide desired function and performance.

Data structures that enable the programs to adequately manipulate information.

Documents that describe the operation and use of programs.

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* Property of STIPage 4 of 9

Software

I0065

Software-Related Problems

1. Hardware advances continue to outpace our ability to build software to tap hardware’s potential.

2. Our ability to build new programs cannot keep pace with the demand for new programs, nor can we build programs rapidly enough to meet business and market needs.

3. The widespread use of computers has made society increasingly dependent on reliable operation of software.

4. We struggle to build computer software that has high reliability and quality.

5. Our ability to support and enhance existing programs is threatened by poor design and inadequate resources.

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* Property of STIPage 5 of 9

Software

I0065

Software Components

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* Property of STIPage 7 of 9

Software

I0065

Software Characteristics

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* Property of STIPage 6 of 9

Software

I0065

Software Characteristics

Software is developed or engineered, it is not manufactured in the classical sense.

Software doesn’t “wear out.”

Most software is custom-built, rather than being assembled from existing components.

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* Property of STIPage 8 of 9

Software

I0065

Software Characteristics

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* Property of STIPage 9 of 9

Software

I0065

Software Applications

System Software

Real-Time Software

Business Software

Engineering and Scientific Software

Embedded Software

Personal Computer Software

Artificial Intelligence Software

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