1.5 Past Paper Questions
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Complete the table by writing the two missing operating system function names and a task performed by the two given functions.
Missing function for Moves data from secondary storage to RAM: Memory management. Task for Peripheral management: Receiving data from input devices. Missing function for Allows user to create name and delete folders: File management. Task for User interface: Outputting data to the user.
Complete the description of utility system software using the words: access consecutive defragmentation encryption key understood.
Encryption software changes data using a key. If the changed data is intercepted it cannot be understood. Defragmentation software finds split files and moves them to be consecutive in storage. This makes the access of data faster.
State the need for utility software in a computer.
Performs housekeeping actions. Monitors manages or maintains a computer system. Helps the computer run smoothly and efficiently.
Explain why a computer is more efficient after a defragmentation program has been run.
Takes less time to read files because the data is contiguous. The read head does not need to move as far. Takes less time to save new data because there is larger free space together.
Tick one box in each row to identify which function of the Operating System deals with each action.
Creating a new folder: File management. Moving data from Virtual Memory to RAM: Memory management. Renaming a file: File management. Reading data from a scanner: Peripheral management. Changing the password: User management.
Explain how a restaurant’s hard disc could have become fragmented.
Orders are saved as files and then deleted once processed. New order files are created which may be bigger than the spaces left by deleted files. The new order files are split up and stored in non-consecutive spaces.
Explain how defragmentation software could overcome the issue of a slow computer system.
Files on the hard disk drive are moved. Empty spaces are collected together. Files are moved to be stored together. Fewer disc accesses are needed to read a complete file.