What is Topic: Definition and 390 Discussions

The BID 770 was a British-built electronic cryptography device, codenamed TOPIC. It was also used by Canada's foreign service under the codename TENEC. TOPIC was brought into service in 1977, and became obsolete in 1995.
TOPIC was used to protect telegraph traffic, and replaced the earlier mechanical system called ROCKEX. It could be operated in both on- and off-line modes. Weighing 65 lb, the machine used diode–transistor logic instead of single transistors.

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  1. W

    Undergraduate Research Topic Suggestions

    Hello my friends, I need to select a topic for undergraduate research. I have a meeting set-up with my advisor, and I would like to take some possible problems with me to discuss with him. After searching for unsolved problems for some time, all of them seemed well above something an...
  2. L

    Is "Effects of UV Rays' a good topic in research?

    Is "Effects of UV Rays' a good topic in research?
  3. I

    Some help on a tough math topic

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  4. D

    Which Topic is More Popular Here? Analyzing Views/Replies Ratio

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  5. G

    Does anyone know some light facts on the following topic?

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  6. K

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  7. P

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  8. A

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  9. N

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  10. K

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  11. K

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  12. W

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  13. C

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  14. E

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  15. Werdatothewise

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  16. T

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  17. Loren Booda

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  18. M

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  19. M

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  20. I

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  21. S

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  22. R

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  23. D

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  24. J

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  25. Werdatothewise

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  26. B

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  27. M

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  28. E

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  29. S

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  30. V

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  31. E

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  32. D

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  33. A

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  34. zeronem

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  35. G

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  36. marcus

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  37. B

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  38. heusdens

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  39. R

    Good physics topic for my in class presentation

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  40. C

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