Operating System

Operating System

Operating system is also part of a system software.

What is an Operating System?

Is a system software that manages computer hardware, software and become the interface between human and computer.

8 management performed by the operating system:

​1. Providing Interface
The OS allows the user to input and output data through the INTERFACE.
Graphical User Interface (GUI) is one of the example.

8 management performed by the operating system:

​2. Managing files
The OS allows the user to creates, move, copy, delete, name and rename files

Open Ended

Please describe what the files management does?

8 management performed by the operating system:

​3. Managing peripherals and drivers
The OS will let the user to use or connect an input or output peripherals. A drivers is software that translates data from the computer to the peripherals, vice-versa.

8 management performed by the operating system:

​4. Managing memory
The OS manages the movement of data to and from hardware primarily RAM and makes sure that the process have enough memory allocated to perform their function.

8 management performed by the operating system:

​5. Managing multitasking
The OS allow multitasking to happen by deciding which processes should be executed next and how long they can spend being processed before switching to another process. The OS does this using INTERRUPTS.

8 management performed by the operating system:

​6. Managing interrupts
An interrupt is a signal sent to the processor to tell it that process needs its attention.

The OS decides which interrupt to run and then performs the actions required

Open Ended

Please define what is meant by INTERRUPTS

8 management performed by the operating system:

​7. Providing a platform for running applications (Application management)
The OS allows the application software to run on the computer by fetching instructions from it and executing them.

8 management performed by the operating system:

​8. Managing user accounts
The OS allows a user to set-up an account, keeps the data separate for multiple accounts, and restricts the access by using the password.

Multiple Choice

What is an operating system?

• Application software that manages computer software and hardware and become the interface between human and computer

• System software that manages computer hardware, software and become the interface between human and computer

Open Ended

Please mention 4 management that OS does.

Multiple Choice

The OS allows the user to creates, move, copy, delete, name and rename files

• Files management

• User account management

• Interrupts management

Multiple Choice

Memory management does....

• Make sure that two processes do not try and access the same memory location

• Decide which interrupt to run and then performs the actions required

Match

Match the following of the OS management

• The OS allows the move, copy, cut, delete and rename

• The OS allows this to happen by deciding which processes should be executed next

• The OS allow the application software to run

• GUI

• The OS allows a user to set up an account

Files management

Multitasking management

Application management

Interface management

User accounts management

• Files management

• Multitasking management

• Application management

• Interface management

• User accounts management

THANK YOU