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9TH CLASS
COMPUTER SCIENCE
Unit no 05: Software System
Long Questions Answers:
1. Discuss the importance of System software in a computing system.
Importance of System Software in a Computing System
System software is a very important part of any computer because it helps the computer’s hardware and software work together smoothly. It acts like a bridge between the hardware (the physical parts of a computer) and the application software (programs we use like games, browsers, or word processors).
Some reasons why system software is important:
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Manages Hardware:
The computer has many hardware parts like the CPU, memory, hard drive, keyboard, mouse, and printer. System software controls and manages these devices so they work properly. For example, it tells the printer how to print a document or controls how the screen shows images.
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Runs Application Software:
Without system software, application software like Microsoft Word, video games, or web browsers would not work. The system software provides a platform for these programs to run by handling all the hardware interactions in the background.
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Controls Resources:
When many programs run at the same time, system software decides how much memory, processing power, and other resources each program gets. This helps keep the computer fast and prevents it from freezing or crashing.
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Provides User Interface:
Most system software includes an interface that allows users to interact with the computer easily. This could be through a graphical user interface (GUI) like Windows or macOS, where users click icons and menus to open programs and files.
2. Describe the role of Operating system, utility software, and device drivers providing examples of each.
Operating System
An Operating System (OS) is a type of system software that manages all the hardware and software on a computer. It acts as an intermediary between the computer hardware and the user applications.
Role of Operating system:
Managing Hardware Resources
One of the primary functions of an operating system is to manage the hardware resources of a computer system. This includes the CPU, memory, disk drives, and peripheral devices such as printers and keyboards. The OS ensures that each application gets the necessary resources to function correctly without interfering with other applications.
Example: When you open a web browser while listening to music on your computer, the operating system allocates CPU time and memory to both the web browser and the music player. It ensures that both applications run smoothly by managing the resources effectively.Providing a User Interface
The operating system provides a User Interface (UI) that allows users to interact with the computer.
Example:- Graphical User Interfaces (GUIs)
- Command-Line Interfaces (CLIs).
Running Applications
The operating system is responsible for running applications on a computer. It loads applications into memory, allocates the necessary resources, and manages their execution. The OS also ensures that applications do not interfere with each other and that they run efficiently.
Example: When you open a word processor like Microsoft Word, the operating system loads the application into the computer’s memory and allocates CPU time for it to run. If you open multiple applications, the OS manages the distribution of resources so that all applications can run simultaneously without performance issues.Utility Programs
Utility programs are essential components of system software that enhance the functionality of a computer system. They perform various tasks to ensure smooth operation and efficient management of hardware, software, and data.
Device Drivers
Device drivers facilitate communication between hardware devices and the operating system, ensuring that devices function correctly. Imagine your computer as a superhero with many powers, but sometimes it needs help to talk to its gadgets, like a printer, keyboard, or mouse.
Real-Life Example: TV Remote Control
Think of a device driver like a TV remote control:
- TV (Device): It can change channels, adjust the volume, and more, but it needs instructions.
- Remote Control (Driver): Sends the correct signals to the TV to perform these actions.
- You (Computer): You decide what you want to watch or adjust and use the remote control to tell the TV.
3. Explain the differences between system software and application software.
Difference Between System Software and Application Software:
| System Software | Application Software | |
|---|---|---|
| Definition | Software that runs and controls the computer system. | Software that helps users do specific tasks or activities. |
| Purpose | Manages computer hardware and basic operations. | Used to complete tasks like writing, browsing, or playing games. |
| User Interaction | Works mostly in the background, not directly used by users. | Directly used and operated by users. |
| Dependency | Needed for the computer to start and function. | Needs system software to run. |
| Examples | Windows, Linux, macOS, Android, Device Drivers | MS Word, Google Chrome, PowerPoint, VLC Media Player |
| Installation | Often comes pre-installed with the system. | Installed by the user when needed. |
4. Describe the process of using utility software to optimize system performance and maintain security. Provide detailed steps and examples of common utility tools.
Using Utility Software to Optimize System Performance and Maintain Security
Utility software helps keep a computer working smoothly and safely. It includes special tools that clean, fix, and protect your system.
Here’s how utility software is used step by step:
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Disk Cleanup – Freeing Up Space
- Purpose: Removes unnecessary files like temporary files, cache, and recycle bin data.
- Tool Example: Disk Cleanup (Windows)
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Steps:
- Open Disk Cleanup from the Start Menu.
- Choose the drive you want to clean (usually C:).
- It will scan the drive and show you files to delete.
- Select files and click OK to delete them.
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Antivirus Software – Protecting from Viruses
- Purpose: Detects and removes harmful software (viruses, malware).
- Tool Example: Windows Defender, Avast, AVG
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Steps:
- Open your antivirus software.
- Run a Quick Scan or Full System Scan.
- Follow instructions to remove or fix any threats found.
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File Compression – Saving Space
- Purpose: Reduces the size of files or folders so they take up less space.
- Tool Example: WinRAR, 7-Zip, Windows built-in ZIP tool
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Steps:
- Right-click on a file or folder.
- Choose Send to > Compressed (zipped) folder.
- A smaller ZIP file is created.
5. Explain how to install, update, and troubleshoot device drivers for hardware components.
Installing, updating and debugging device drivers are critical steps in ensuring that hardware components perform properly and efficiently. Drivers serve as an interface between the operating system and the hardware, translating commands to ensure correct communication.
Automatic installation via plug and play:
Modern operating systems like Windows or Mac OS often detect and installed drivers automatically for plug and play devices.
Steps
- Connect the hardware to the computer (e.g., via USB, HDMI or other interfaces)
- The operating system searches its built-in driver library or the internet for the appropriate driver.
- Once found the driver is installed and the devices ready for use.
Using automatic updates:
Most modern operating systems automatically update drivers to ensure compatibility and performance.
Steps:
- Open the system settings or control panel
- Ensure automatic updates are enabled. For example, in Windows check for updates via settings > update and security > Windows update.
- If a driver update is available, it will be downloaded and installed automatically.
Trouble shooting:
Trouble shooting device drivers for hardware components is essential when devices fail to function properly or cause error. Problems may arise from outdated, corrupted or incompatible drivers. Here is a step-by-step guide to trouble shooting drivers effectively:
- Pinpoint the problem
- Install the latest driver
- Restore the previous driver
- Reconfigure the driver
- Test for compatibility
- Run diagnostic utilities
- Use a different machine for testing
6. Discuss the main functions of commonly used application software, such as word processing and spreadsheet.
Application software refers to programs designed to perform specific tasks for users, ranging from productivity and creativity to entertainment and education.
Commonly used application software:
Word Processing Software
Word processing software is a type of application software used for creating, editing, formatting, and printing documents. These software programs are essential tools for writing letters, reports, essays, and other text-based documents. Word processors offer a variety of features that enhance the writing and editing process, making it easier for users to produce professional-quality documents.
Examples of Word Processing Software:
- Microsoft Word: Available on Windows and macOS, Microsoft Word is one of the most widely used word processors. It offers a range of features including text formatting, spell check, grammar check, and the ability to insert images, tables, and charts.
- Google Docs: A web-based word processor available on any operating system with internet access. Google Docs allows for real-time collaboration, where multiple users can edit a document simultaneously. It also integrates with other Google services.
- LibreOffice Writer: Available on Windows, macOS, and Linux, LibreOffice Writer is a free and open-source word processor. It offers a robust set of features similar to Microsoft Word, making it a great alternative for users who prefer open-source software.
Spreadsheet Software
Spreadsheet software is a type of application software used for organizing, analyzing, and storing data in tabular form. Spreadsheets consist of a grid of cells arranged in rows and columns, where users can input data, perform calculations, and create charts. This software is essential for tasks such as budgeting, financial analysis, data management, and statistical analysis.
Examples of Spreadsheet Software:
- Microsoft Excel: Available on Windows and macOS, Microsoft Excel is one of the most widely used spreadsheet programs. It offers powerful features including complex formulas, pivot tables, and a variety of chart options.
- Google Sheets: A web-based spreadsheet available on any operating system with internet access. Google Sheets allows for real-time collaboration, where multiple users can edit a spreadsheet simultaneously. It also integrates with other Google services.
- LibreOffice Calc: Available on Windows, macOS, and Linux, LibreOffice Calc is a free and open-source spreadsheet program. It offers a robust set of features similar to Microsoft Excel, making it a great alternative for users who prefer open-source software.
7. How is graphic designing software used? Give some examples.
Graphic design software is a type of application software used for creating, editing, and managing visual content. These programs provide tools for drawing, painting, photo editing, and creating illustrations, making them essential for designers, artists, and anyone involved in visual media. Graphic design software is used in various industries, including advertising, web design, publishing, and multimedia production.
Examples:
- Adobe Photoshop: Available on Windows and macOS, Adobe Photoshop is one of the most popular graphic design programs. It offers powerful tools for photo editing, digital painting, and graphic design.
- Adobe Illustrator: Available on Windows and macOS. Adobe Illustrator is a vector graphics editor used to create logos, illustrations, and scalable graphics that maintain quality at any size.
- CorelDRAW: Available on Windows and macOS, CorelDRAW is a vector graphics editor known for its user-friendly interface and robust feature set, ideal for creating professional graphics and layouts.
- GNU Image Manipulation Program (GIMP): Available on Windows, macOS, and Linux, GIMP is a free and open-source graphic design program. It offers many features similar to Adobe Photoshop, making it a great alternative for users who prefer open-source software.
- Canva: A web-based graphic design tool accessible on any operating system with internet access. Canva provides an easy-to-use interface with a wide range of templates and design elements, making it perfect for beginners and professionals alike.
