How to decode

1234567891011
Across
  1. 3. — Cipher starts with A, ends with Z in Hebrew-style code (6)
  2. 6. — Digital language of ones and zeros (6)
  3. 7. — Text format reportedly ate “fût” oddly with eight bits (5)
  4. 8. - Tung tung tung sahur, nucleus lunch data,
  5. 9. — Standard organisation oddly hidden in “thIS Organisation” (3)
  6. 10. — Roman ruler found in “a scare” oddly rearranged (6)
Down
  1. 1. — Number system with two choices in every position (6)
  2. 2. — Sixteen-based numbering system for coders (11)
  3. 4. — Universal character system oddly used in code (7)
  4. 5. — Encoding using sixty-four symbols as foundation (6)
  5. 7. — Encoding format with sixteen-bit character style (6)
  6. 11. — Code standard seen in “a sci-fi” scrambled partly (5)