Systems Software (GCSE and above)

The Operating System is stored on secondary storage. Which of the following storage devices would load the OS fastest?

• Optical

• Magnetic Hard Disk Drive

• Solid State Drive

Why are device drivers needed?

• So that the computer is able to run multiple applications at the same time.

• To allow the OS to communicate with the device and system hardware. This ensures the device is compatible with the system.

• To make sure that the OS is able to run applications in real time.

• To provide the user with a graphical way to interact with a system.

Pick the two benefits of using a command line interface

• It is less resource heavy. It uses requires less processing power and memory.

• For experienced users/IT specialists it allows for greater control over the system and can be faster to complete tasks.

• It is easier to use for the average human as it includes visual elements.

• The interface is very intuitive and can pick it up as you go along.

Identify 2 of the security features that an Operating System provides.

• Firewall

• Organising how data is stored in memory

• Use of passwords or biometrics

• Use of TCP/IP protocols to send packets of data across networks.

The OS allocates space in RAM for new programs that have been opened. If the system runs out of RAM, the OS will allocate space in virtual memory instead.

What is virtual memory?

• Memory on the cloud

• Using part of secondary storage temporarily to act as RAM

• files saved for long term

• A collection of CDs

Identify 3 accessibility features of operating systems

• Battery saving mode

• On screen keyboard

• Screen magnifier tool

• Increased font sizes

• High Quality camera

Identify 2 ways to reduce the chances of getting malware on your computer

• Ensuring all updates are installed

• Backing up your files

• Using anti-virus software

• Adding more user accounts

____________ is the Operating System function that allows more than one program to run at once.

Name one positive of using a GUI

• Memory intensive

• Requires a lot of processing power

• It is easier for the average person to use as it is more visual

• Cheapest option

Which of these utility tools is used to re-organise files on the hard disk drive after they have become separated over time?

• Encryption

• Disk Defragmentation

• Firewall

• Incremental Backups