Tunis

Article summary

TUNIS (Toronto University System) is a Unix-like operating system, developed at the University of Toronto in the early 1980s. TUNIS was a portable operating system compatible with Unix V7, but with a completely redesigned kernel, written in Concurrent Euclid. Programs that ran under Unix V7 could be run under TUNIS with no modification. TUNIS was designed for teaching, and was intended to provide a model for the design of well-structured, highly portable, easily understood Unix-like operating systems. It made extensive use of Concurrent Euclid modules to isolate machine dependencies and provide a clean internal structure through information hiding. TUNIS also made use of Concurrent Euclid's built-in processes and synchronization features to make it easy to understand and maintain. TUNIS targeted the PDP-11, Motorola 6809 and 68000, and National Semiconductor 32016 architectures, and supported distribution across multiple CPUs using Concurrent Euclid's synchronization features.

Key claims

1. area: 2,700,000 inhabitants — source: Wikipedia · confidence 0.95
2. date of establishment: 1976 — source: Wikipedia · confidence 0.95
3. date of establishment: 2014 — source: Wikipedia · confidence 0.95
4. date of foundation: 1893 — source: Wikipedia · confidence 0.95
5. date of foundation: 1892 — source: Wikipedia · confidence 0.95
6. date of foundation: 1998 — source: Wikipedia · confidence 0.95
7. date of foundation: 1964 — source: Wikipedia · confidence 0.95
8. date of foundation: 1900 — source: Wikipedia · confidence 0.95
9. date of foundation: 1875 — source: Wikipedia · confidence 0.95
10. date of foundation: 1896 — source: Wikipedia · confidence 0.95
11. population: 110,000 inhabitants — source: Wikipedia · confidence 0.95
12. population: 2,000,000 inhabitants — source: Wikipedia · confidence 0.95
13. publication date: 1838 — source: Wikipedia · confidence 0.95

Discussion questions

1. Summarise the article in your own words. Which single claim would you verify first, and why?
2. The record states that the area is "2,700,000 inhabitants". What evidence would count against this claim?
3. The record states that the date of establishment is "1976". What evidence would count against this claim?
4. The record states that the date of establishment is "2014". What evidence would count against this claim?
5. The record states that the date of foundation is "1893". What evidence would count against this claim?
6. The record states that the date of foundation is "1892". What evidence would count against this claim?
7. The record states that the date of foundation is "1998". What evidence would count against this claim?
8. The record states that the date of foundation is "1964". What evidence would count against this claim?
9. The record states that the date of foundation is "1900". What evidence would count against this claim?
10. The record states that the date of foundation is "1875". What evidence would count against this claim?
11. The record states that the date of foundation is "1896". What evidence would count against this claim?
12. The record states that the population is "110,000 inhabitants". What evidence would count against this claim?
13. The record states that the population is "2,000,000 inhabitants". What evidence would count against this claim?
14. The record states that the publication date is "1838". What evidence would count against this claim?
15. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
16. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1378624175