Digi Tech Revision (71329)

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Across
  1. 1. a compression method that permanently removes data to reduce file size
  2. 3. The Data __(?)__ has rights about how and what personal data is stored about them.
  3. 6. Data __(?)__: returning original data to its previous state
  4. 7. a type of memory that is volatile
  5. 9. a form of memory faster than IAS! It usually stores a single temporary value for use in the Fetch-Execute cycle
  6. 14. a physical component that makes up a computer
  7. 18. a type of cell reference used in Spreadsheets. It 'fixes' the referenced cell
  8. 22. a type of image that is made up of pixels
  9. 24. ___(?)___ system: a necessary piece of system software
  10. 28. this law protects the rights of individuals and the data that is stored about them
  11. 29. In a database, this consists of records and fields
  12. 31. The Information __(?)__ is responsible for enforcing the DPA.
  13. 32. an automatic check that computers use to ensure that entered data is sensible
  14. 35. a type of memory that is non-volatile
  15. 36. ___(?)___ Relationship Diagram: a useful modelling tool to help identify relationships between tables
  16. 37. an abbreviation of picture element
  17. 38. a type of memory that helps the CPU to process data faster
Down
  1. 2. In SQL, this is the first clause (first instruction word)
  2. 3. a type of malware that collects little bits of information about user's actions.
  3. 4. a type of image made up of components (lines, shapes etc)
  4. 5. ___(?)___ Key: this uniquely identifies a record in a table
  5. 6. a versatile text file format
  6. 8. a group of 8 bits
  7. 10. this is 1024 megabytes
  8. 11. this is made illegal under the computer misuse act
  9. 12. The Data __(?)__ is the person in a company who is responsible for registering the company for the DPA
  10. 13. a data type, usually consisting of text
  11. 15. a discrete data form
  12. 16. ___(?)___ software: this type of software enables users to do a particular task
  13. 17. Disc __(?)__: a utility service/program you can perform on your hard disc drive.
  14. 19. a measurement of the quality of an image
  15. 20. a popular sound file format
  16. 21. the smallest unit of storage
  17. 23. ___(?)___ Key: when a key is made up of two or more fields
  18. 25. a continuous data form
  19. 26. a data type, which is of type number
  20. 27. a popular image file format
  21. 30. ___(?)___ Unit: this part of the CPU fetches the next instruction and decodes it
  22. 33. needed if you want to convert analogue to digital
  23. 34. a program that has been designed to damage the normal operation of a computer
  24. 39. a component of the CPU
  25. 40. Which of these is not a form of Internal memory? RAM - ROM - HDD - CACHE