The following is not a function of an operating system:

• Checking for viruses
• Directing information from peripheral devices like a mouse or a printer
• Allowing users to open applications
• Allocating the computer's memory between different tasks.

Icons, menus and windows are part of:

• Graphical user interface
• System security
• Applications and user files
• Graphics or games packages

The following is not a part of GUI:

• command prompt
• scroll bar
• text box
• radio button

What is the reason computer memory needs to be managed?

• the amount of memory in a computer is limited
• to protect your data from hackers
• applications can't be trusted to use memory properly

Managing computer memory by the operating system does not include this process:

• connecting printers and other peripheral devices
• releasing memory not used for a while
• loading programs into memory as a user opens them
• protecting one program's memory area from being used by the other program

Operating systems are responsible for logging users in and out. This function is a part of:

• user interface
• memory management
• managing hardware and devices

There are operating systems without an interface.

• False
• True

Only personal computers need operating systems, not mobile phones or robots.

• False
• True

Many operating systems have similar looking user interfaces featuring buttons, labels, and windows.

• True
• False