| 1. | These match the EBCDIC zone for digits without a sign overpunch.
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| 2. | The original Princeton implementation used punched cards and the EBCDIC character set.
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| 3. | EBCDIC-based systems cannot handle all characters used in UUencoded data.
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| 4. | It was used in BCDIC, EBCDIC, and ASCII-1963.
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| 5. | Go a ahead and use EBCDIC or Baudot code if you want.
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| 6. | Even on systems with extensive EBCDIC support, it has not been popular.
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| 7. | This convention comes from the zone field for EBCDIC characters and the signed overpunch representation.
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| 8. | ALGOL W's syntax is built on a subset of the EBCDIC character set.
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| 9. | Originally intended to convert between ASCII and EBCDIC, first appeared in Version 5 Unix.
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| 10. | It was the precursor to EBCDIC.
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