Computer Applications Class IX Basics of Operating Systems worksheet2

 Computer Applications
Class IX


Basics of Operating Systems
(Chap 4)
Operating Systems- Shell and Kernel
Operating system has broadly two components: Shell and Kernel.
v The shell part is responsible for interacting with the users and
v The kernel part is responsible for interacting with hardware.
The shell act as the interpreter which does these things:
i. Get the commands/instructions from the user.
ii. Translate the received commands / instructions into the machine language.
iii. Pass the translated command to the Kernel to get it done.
The Kernel is the core part of an operating system. It functions at a basic level, communicating
with the actual hardware and managing resources, such as CPU and the memory.
It works as an interface between the user applications and the hardware.
Functions of operating system broadly fall into three categories- Essential functions, monitoring
functions and service functions.
Essential functions ensure effective utilization of computer system resources, monitoring
functions monitor and collect information related to system performance and service functions
enhance facilities provided to user.
Major Functions of Operating System-
1. Processor Management
2. Memory Management
3. File Management
4. Device Management
5. User Interface
Worksheet 05 (chap 4) Aug 2020:-
1. Identify the following logos and write their names.
2. Name a mobile company that uses the following operating system.
i. Android
ii. Symbian
iii. IOS
iv. Windows Mobile
3. Give two examples of GUI based operating system.
4. Name the latest version of Windows operating system.
5. What is open source software?
SADHU SINGH
T.G.T Computer


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