Possible Clues:

• A graduate beginning to study in time a lot of files?
• A little contrary with corrupt files
• At short notice, put up sordid information on computer
• Search me!
• Computerised information at short notice turning up on post
• A bit taken aback with worthless store of information
• Information structure on a computer
• Reduced time with lower quantity of information
• Computer organization?
• Lots of info at short notice sent back to HQ