Ch4 Working with the Operating System

Ch4 Working with the Operating System

Functions of Operating System

Processor orCPU Management

Memory Management

File Management
Device Management
Application Management
Providing User Interface
Data Security
Error Detection

Processor (CPU) Mangement

Keeps track of the processor and the status of the processor

Memory Mangement

OS allocates and deallocates the memory

File Management

OS keeps the track of the information ,location,uses ,status etc. of the data, files and directories

Device Management

OS Keeps track of I/O devices
OS allocates and deallocates devices to the processor and applications OS passes I/O requests to the device driver
OS decides Device Time for the processes

Multiple Select

Name three Input Devices.

• Keyboard

• Scanner

• Mouse

Multiple Select

Name three Input Devices.

• Keyboard

• Scanner

• Mouse

Multiple Select

Name three Output Devices

• Speaker

• Monitor

• Printer/Plotter

Multiple Select

Name 3 storage Devices

• CD

• DVD

• Hard disk

Open Ended

Name 3 Input Devices

Open Ended

Name 3 Output Devices

Open Ended

Give examples of Application Software

Providing User Interface

Operating System acts as an intermediary or interface beween the user and the computer

Open Ended

How operating System manages user Interface?

Data Security

 OS allows authorized persons to work on the computer

  One system can be used  by many by using different login ID and password

Error Detection

OS detects and debugs errors that may arise during the computer's working

Different parts and operating system

Kernel
Device Driver
File magement system
User Interface 

Open Ended

Name the parts of the operating system

FUCTIONS OF KERNEL

Runs User Application 

Facilitates Communication

Resource Allocation 

Processor management

Memory Management

Device management

File management

ROLE OF KERNEL

Most important part of operating system that lies at the core of an operating system
Exercises complete control over evertything in the computer
Acts as an interface between the applications and computer hardware devices like CPU,input and output devices

Examples of KERNEL 

Linux Kernel
MS Winwows NT kernel

PARTS OF KERNEL

APPLICATIONS
KERNEL
CPU,MEMORY AND I/O DEVICES

Open Ended

NAME THE PARTS OF KERENEL

Multiple Choice

Examples of Mobile Operating System

• Android (By google)

• iOS (By Aplle Inc.)

• Symbian(By Nokia)

• All the above

Multiple Choice

Two types of User Interface

• CUI( Character User Interface)

• GUI(Graphical User Interface)

• CUI and GUI

Multiple Choice

Examples of Kernel

• Linux Kernel

• MS windows NT Kernel

• Linux Kernel and MS Windows NT Kernel

Multiple Choice

Examples of Windows versions

• Windows 7

• Windows 8.1

• Windows 10

• Windows7, Windows 8.1,Windows 10

Multiple Choice

Features of Windows 7

• Faster set up

• Use Less Memory

• Faster and easy connect onto wireless networks

• Faster recognition of USB devices

• All of these

Multiple Choice

Parts of Desktop

• ICONS

• Task Bar

• Background

• Gadgets

• Icons,Taskbar,Background,Gadgets

What are Icons

Small pictures displayed on the desktop background are called Icons

What do icons represent?

Icons represent files folders programs gadgets etc 

Multiple Choice

COMMON ICONS ARE

• Computer

• Recycle Bin

• Network

• My Documents

• Computer, Recycle Bin, Network, My documents

What is a task bar

Task Bar is a narrow bar at the bottom of the destop

Multiple Choice

Parts of Task Bar

• Start Button

• System Tray

• Notification Area

• All of these

What is a Background or Wall paper

Empty area of the desktop screen on which icons are placed is called the desktop background or Wall paper

What are Gadgets

Applets or Customizable mini programs that put information on the desktop

Multiple Select

Does Recycle Bin remove a program permanently from the computer

• Yes

• No

What is a Mouse

A pointing device that supports "Point and Click" functionality

Commonly Used Mouse is 

Three Button Mouse

Three Buttons on the mouse are

Left Button ( Primary Mouse Button)
Right Button (Secondary Mouse Button
Scroll Wheel

Operations carried out by MOUSE

Click
Double Click
Dragging

Multiple Select

Operations carried out by Left Mouse button

• Click

• Double Click

• Dragging

What is a Control Panel

Program that allows us to change the settings of our computer is called Control Panel
We can change the following using control Panel
Appearnce of Desktop
Change or remove installed programs
Set System Date and Time 
Change the settings of the hardware devices etc 

Multiple Select

Control Panel allow us to change the

• Appearance of desktop and windows

• Changes or Remove Installed programs

• Set System Date and Time

• Change the settings of hardware devices

File

File is the work done by us on the computer, saved with name
FIle can be saved inside a foledr

Folder

A folder contains many files ,or other folders(sub folders) in it
It helps to keep the files organised