Complete the description of utility system software using the words provided in the box. Not all words are used.
| contiguous | ciphertext | defragmentation | encryption |
| external | key | logical | performance |
| physical | readable | scattered | sectors |
| speed | unreadable | utility | compression |
..... software reorganises files on a hard disk drive so that parts of the same file are stored in ..... sectors. This minimizes read/write head movement, which improves the disk read/write ......
..... software scrambles data using an algorithm so that it cannot be understood by unauthorised users. This process turns plaintext into ciphertext, rendering the data ..... to anyone who does not possess the correct decryption ......
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.