Operating systems (2.4)

• What is an operating system?

  It's a software that manages the resources of a computer system.
• What is the operating system loaded by?

  BIOS which stands for basic input / output system
• What are the types of operating systems?

  Single user operating system, multi operating system, multi processor operating system and single processor operating system.
• Explain the single user operating system?

  They are found on most desktop computer, laptops and tablets where only one person will use the device one at a time.
• Explain the multi user operating system?

  It allows more than one user to access the device at the same time such as UNIX servers.
• Explain a single processor operating system?

  It only has one processor (CPU), that's shared between users by diving the CPU time into time slices.
• Explain a multi processor operating system?

  They have more than one processor and users still have to share processors abd it is a more complicated system. However, performances is improved as there are fewer users per processors.