BCA SYLLABUS AND QUICK REVISION NOTES
SOURCE: KHWAZA MUINUDDEEN CHISHTI AND LUCKNOW UNIVERSITY
subject ; computer fundamental
chapter: OPERATING SYSTEM
Syllabus of this chapter :
1.introduction to operating system
2.Function of operating system
3. types of operating system
4.features of ms windows
(i)control panel
(ii)TAskbar ,(iii)Desktop ,(iv) WIndows application ,
(v)windows accessories (vi)notepad (vii)paintbrush
Dosto is chapter me Deepdive karne se pahle mai aapko btana chahta hu ki ye Notes maine khud banaaye hai aur agar aap is chapter ke notes banana chahte hai to is article me mai aapko jo topic btaya hu vahi likh lijiyega jo aapke assignment , exam me aapka bahut Help karega ;
introduction to operating system :
An Operating System (OS) is a software that acts as an interface
between computer hardware and the user.
Every computer system must have at least one operating system to run other
programs applications like Browsers, MS Office, Notepad Games, etc.,
The OS helps to
communicate with the computer without knowing how to speak the computer’s
language. It is not possible for the user to use any computer or mobile device
without having an operating system
 |
| fig: Operating system |
Following are the Operating System examples with the latest Market Share
| OS Name | Share |
|---|
| Windows | 40.34 |
| Android | 37.95 |
| iOS | 15.44 |
2.Function of operating system :
There are some important Functions Of OS which are following:
1.RESOURCE MANAGEMENT:
When multiplr user are accessing the system the OS work as RESOURCE MANAGER its responsbility to provide the right data to0 the authorised user. It also minimize the load of the system.
2.PROCESS MANAGEMENT:
Process management helps OS to create and delete processes. It
also provides mechanisms for synchronization and communication among processes.
Process management
involves various tasks like creation, scheduling, termination of processes .It is the job of OS to manage all the running
processes of the system. It handles operations by performing tasks like
process scheduling and such as resource allocation.
3.STORAGE MANAGEMENT:
Storage management refers to the software and processes that improve the performance of data storage resources. It may include network virtualization, replication, mirroring, security, compression, deduplication, traffic analysis, process automation, storage provisioning and memory management.
4. SECURITY OR PRIVACY MANAGEMENT:
Privacy is also provided by the operating system it means that unathorised user cant't access the system oe any paricular program
3. types of operating system :
1.Batch OS
2.Distributed OS
3.Multitasking OS
4.Network OS
5.Real OS
6.Mobile OS
4.features of ms window:
(i)Control Panel:
The Control Panel is a collection of tools to help you configure and manage the resources on your computer. You can change settings for printers, video, audio, mouse, keyboard, date and time, user accounts, installed applications, network connections, power saving options, and more.
The desktop is a fundamental part of the default GUI (graphical user interface) in Windows. It is a space where you can organize applications, folders, and documents, which appear as icons. Your desktop is always in the background, behind any other applications you're running. You can access your desktop at any time by pressing Windows key+D to minimize any running applications.
(iii)Device Manager:
The Device Manager lists the hardware devices installed in a computer. It allows users to see what hardware is installed, view and update hardware drivers, and uninstall hardware through the Device Manager.
(iv)Disk Cleanup:
The Disk Cleanup utility helps increase free disk space on your computer by removing temporary or unnecessary files. Running Disk Cleanup helps improve your computer's performance, and create additional space to store your downloads, documents, and programs.
You can access Disk Cleanup from the File Explorer.
On the left side of the window, find This PC or My Computer, and select it by clicking once.
Then, on the right side, right-click any disk drive on your computer (C:, for example).
Select Properties.
Under the General tab, click Disk Cleanup.
(v)Microsoft Paint:
Included in Windows since November 1985, Microsoft Paint is a simple image editor that you can use to create, view, and edit digital images. It provides basic functionality to draw and paint pictures, resize and rotate photographs, and save pictures as different file types.
(vi)Notepad:
(vii)Task Manager:
The Task Manager gives you an overview of what's running on your computer. You can see how much of your system resources is used by each application (task), sorting by CPU, RAM, and disk I/O usage. If a program is frozen or not responding, you can right-click it in Task Manager and end the task, forcing it to quit.
-------An Student Of KMCU LUCKNOW
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