Crossy codes

123456
Across
  1. 2. placed in brackets following the array name.
  2. 4. representing data in a visual, machine-readable form
  3. 6. method by which information is converted into secret code
Down
  1. 1. hardware device that reads data storage information
  2. 3. just performing a sequence of predetermined commands
  3. 5. process of requesting access to a data set.