Complete the description of utility system software using the words provided in the box. Not all words are used.
| contiguous | defragmentation | deleted | encryption |
| faster | fragmented | key | lost |
| non-contiguous | plaintext | scrambles | slower |
| software | speed |
..... software reorganises the data on a magnetic hard drive so that parts of the same file are stored in ..... blocks. This reduces read/write head movement, making file retrieval ......
..... software secures sensitive data by converting it into ciphertext using an algorithm. Only users with the correct decryption ..... can return the data back to its original ..... form.
Practise OCR GCSE Computer Science Utility software with exam-style questions for GCSE Computer Science. 12 questions, matched to the OCR GCSE Computer Science (J277) specification and written in Component 01 and Component 02 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.