Pascal
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Niklaus Wirth developed the Pascal programming language in the mid-1970s, which is an evolution from the earlier Algol language created between 1957 and 1960. Pascal incorporates various data types and structures, allowing for complex data management, but has disadvantages related to control flow, such as lacking break and return statements. The language is widely regarded for its understandability, portability, and reliability, paving the way for many successor languages.
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![DISADVANTAGES
• Problems with control—
flow;
"while (i <= XMAX) and (x[i]
> 0) do"
• No break-statement;
• No return-statement;](https://image.slidesharecdn.com/pascal-151125080653-lva1-app6891/85/Pascal-9-320.jpg)
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Pascal
- 2. HISTORY Niklaus Wirth (born 15 February 1934) Blaise Pascal (1623 –1662)
- 3. ALGOL • The predecessor of Pascal • Developed in between 1957 and 1960; • ALGOrithmic language;
- 4. FIRST DEVELOPMENT • General-purpose language; • Developed in mid- 1970;
- 5. THE PROGRAM
- 7. ADVANTAGES • Incorporated a variety of data types; • Innovation in the programming language;
- 8. ADVANTAGES • Possible to work with complex data types; • Case-statement
- 9. DISADVANTAGES • Problems with control— flow; "while (i <= XMAX) and (x[i] > 0) do" • No break-statement; • No return-statement;
- 10. LATER DEVELOPMENT Kenneth Bowles • Install on microcomputers; • Basis for teaching programming language; • Availability of tutorial material and the language definition;
- 11. CONCLUSION • Understandable; • Portable; • Reliable; • Has many successor languages;
- 12. QUESTIONS 1.Who developed the Pascal language? Niklaus Wirth 2. When was ALGOL developed? In between 1957 and 1960
- 13. QUESTIONS 3. When was Pascal developed? In mid-1970. 4. Which parts does the Pascal program have? Program heading, declaration part, statement part.
- 14. QUESTIONS 5. Which new data types does the Pascal have? Record, set, and file. 6. What disadvantages does the Pascal language have? There is a problem with control—flow; It doesn’t have break-statement and return-statement.