ICT246 Operating Systems SUSS Assignment Sample Singapore

ICT246 Operating Systems course focuses on the fundamental concepts and principles that define the core of a modern operating system. Topics covered include kernel design, scheduling algorithms, memory management, file systems, authentication systems, and network protocols. This course will also explore advanced topics such as distributed computing, virtualization technologies, and cloud-based architectures.

Students will gain an understanding of the principles behind operating systems architectures, their modern implementations, and their usage within today’s computing environment. In addition to lectures, students will complete lab assignments involving the installation and configuration of a modern Linux-based operating system, as well as its utilization in various scenarios.

Explore assignment samples for ICT246 Operating Systems course

Singaporeassignmenthelp.com provides ICT246 Operating Systems course assignment samples to help students understand the assignments more easily. Our samples are written by experienced professionals who have vast knowledge in the field of operating systems. They cover various topics such as kernel design, scheduling algorithms, memory management, file systems, authentication systems, and network protocols. In addition, our samples provide step-by-step instructions on how to install and configure a Linux-based operating system, as well as its utilization in various scenarios.

Here, we will discuss some assignment briefs. These are:

Assignment Brief 1: Explain the core functions of an operating system.

An operating system (OS) is a software that acts as an interface between computer hardware and user applications. The core functions of an operating system include the following:

1. Process management: The OS manages the processes running on the computer, such as assigning resources and prioritizing tasks.
2. Memory management: The OS manages the computer’s memory, allocating and deallocating memory to processes as needed.
3. File management: The OS manages the files and directories on the computer, allowing users to create, access, and modify files.
4. Device management: The OS manages the computer’s devices, such as printers and scanners, allowing users to access and use them.
5. User interface: The OS provides a user interface that enables users to interact with the computer, such as a graphical user interface (GUI) or command-line interface (CLI).
6. Security: The OS provides security features, such as user authentication and access controls, to protect the computer from unauthorized access and malicious software.
7. Networking: The OS provides networking capabilities, allowing the computer to connect to other computers and devices on a network.
8. Power management: The OS manages power consumption and battery life on laptops and other portable devices.

Overall, the core functions of an operating system are to manage computer resources, provide a user interface, and ensure the security and stability of the system.

Assignment Brief 2: Contrast the layers of an operating system.

An operating system typically consists of several layers, each with its own set of responsibilities and functions. The specific layers and their functions may vary depending on the operating system in question, but in general, the layers can be divided into the following:

1. Kernel Layer: The kernel is the core of the operating system that directly interacts with the computer hardware. It provides low-level services such as process management, memory management, device driver interfaces, and file system access. The kernel is responsible for managing the resources of the computer and ensuring that they are used efficiently.
2. System Call Layer: The system call layer provides an interface between the user-level applications and the kernel. It allows user-level programs to request services from the kernel, such as opening and closing files, creating new processes, and allocating memory. System calls are the primary means by which user-level programs interact with the operating system.
3. Device Driver Layer: The device driver layer provides a layer of abstraction between the kernel and the hardware devices. It provides a uniform interface for accessing hardware devices, such as disk drives, printers, and network cards, so that applications do not need to know the specifics of each device.
4. User Interface Layer: The user interface layer provides a way for users to interact with the operating system. This layer can be divided into two parts: the shell or command-line interface (CLI) and the graphical user interface (GUI). The CLI provides a text-based interface for interacting with the operating system, while the GUI provides a graphical interface with icons, windows, and menus.
5. Application Layer: The application layer consists of the user-level programs that run on top of the operating system. These programs are responsible for performing specific tasks, such as word processing, web browsing, and playing games. The operating system provides services to these programs through system calls and other interfaces.

Each layer of the operating system performs a specific set of functions and provides services to the layer above it. Together, these layers form a hierarchical structure that allows the operating system to provide a wide range of services and support a variety of applications.

Assignment Brief 3: Describe how the processes, threads and memory are managed.

Processes, threads, and memory are fundamental components of modern operating systems, and their management is crucial for system performance and stability. Here’s a brief overview of how these components are managed:

Processes:

A process is an instance of a program that is being executed by the operating system. It has its own memory space, code, data, and system resources. To manage processes, the operating system creates a process control block (PCB) for each process, which contains information such as the process ID, memory allocation, CPU usage, and other relevant data. The operating system schedules process using scheduling algorithms to ensure that each process gets an appropriate amount of CPU time.

Threads:

A thread is a lightweight process that can run concurrently with other threads within the same process. Each thread has its own stack and program counter, but it shares the same memory space and system resources with other threads within the process. To manage threads, the operating system creates a thread control block (TCB) for each thread, which contains information such as the thread ID, CPU usage, and other relevant data. The operating system schedules threads using scheduling algorithms to ensure that each thread gets an appropriate amount of CPU time.

Memory:

Memory management is the process of allocating, deallocating, and managing memory in a computer system. The operating system uses virtual memory to manage memory, which allows each process to have its own virtual address space. The operating system maps virtual addresses to physical addresses and manages memory allocation and deallocation using techniques such as paging and segmentation. The operating system also uses memory protection mechanisms to ensure that processes and threads cannot access memory that they are not authorized to access.

Assignment Brief 4: Compare the different types of mobile operating systems.

There are several different types of mobile operating systems, each with its own strengths and weaknesses. Here’s a brief comparison of the most popular ones:

1. Android: Android is an open-source operating system developed by Google. It is highly customizable and has a large app store with a wide range of apps. Android is available on devices from many different manufacturers and is known for its flexibility and affordability. However, Android devices can be prone to fragmentation, meaning that different devices may run different versions of the operating system, which can cause compatibility issues.
2. iOS: iOS is the operating system developed by Apple for its iPhones and iPads. It is known for its sleek and user-friendly interface, security features, and tight integration with Apple’s hardware and software ecosystem. However, iOS is only available on Apple devices, which can be more expensive than their Android counterparts.
3. Windows Mobile: Windows Mobile is an operating system developed by Microsoft for mobile devices. It has a similar interface to the desktop version of Windows, which can be familiar to users. However, Windows Mobile has struggled to gain a foothold in the market and has a limited app store.
4. BlackBerry OS: BlackBerry OS was developed by Research in Motion (RIM) for BlackBerry devices. It is known for its security features and messaging capabilities. However, BlackBerry devices have lost popularity in recent years, and the operating system has been largely phased out.
5. Tizen: Tizen is an open-source operating system developed by Samsung and other partners. It is primarily used on Samsung’s smartwatches and some smartphones. Tizen is known for its simplicity and lightweight design.

Overall, the choice of mobile operating system will depend on your needs and preferences. If you prioritize flexibility and affordability, Android may be the best choice. If you value security and a seamless user experience, iOS may be the way to go. Windows Mobile and BlackBerry OS are less popular options that may be worth considering if you have specific needs or preferences. Tizen is a newer operating system that is primarily used on Samsung devices and may appeal to those looking for a simple and lightweight OS.

Assignment Brief 5: Demonstrate the creation and usage of virtual machine.

Creating a Virtual Machine:

1. Open VirtualBox and click on the “New” button.
2. Enter a name for your virtual machine and choose the operating system you want to install.
3. Set the amount of RAM you want to allocate to the virtual machine. This will depend on your system’s available memory and the requirements of the operating system you are installing.
4. Create a virtual hard disk for your virtual machine. You can either create a new one or use an existing one.
5. Choose the type of virtual hard disk you want to create. For most cases, you can choose the default option, VDI (VirtualBox Disk Image).
6. Choose whether you want the virtual hard disk to be dynamically allocated or fixed size. Dynamically allocated means that the virtual hard disk will grow in size as you use it, whereas fixed size means that it will be created with a set size from the beginning.
7. Choose the location where you want to save the virtual hard disk file.

Using the Virtual Machine:

1. Start the VirtualBox software and select the virtual machine you want to use.
2. Click on the “Start” button to power on the virtual machine.
3. If you haven’t already, insert the installation media for the operating system you want to install (e.g. a CD, DVD, or ISO image).
4. Follow the on-screen instructions to install the operating system, just as you would on a physical computer.
5. Once the operating system is installed, you can use the virtual machine just as you would a physical computer. You can install software, browse the web, and perform any other tasks you need to.

That’s a basic demonstration of how to create and use a virtual machine. Keep in mind that there are many options and settings you can configure in VirtualBox and other virtualization software, so it’s always a good idea to consult the documentation or search online for more information.

Assignment Brief 6: Execute system tasks in Linux operating system.

1. Open the terminal: Most system tasks are executed through the terminal in Linux. You can open the terminal by pressing “Ctrl+Alt+T” or by searching for it in the applications menu.
2. Use commands: Linux is a command-line-based operating system. So, to execute system tasks, you need to use the appropriate commands. Some common commands are:

• sudo: allows you to run a command with administrative privileges
• cd: changes the directory
• ls: lists the contents of a directory
• cp: copies files or directories
• mv: moves files or directories
• rm: removes files or directories
• chmod: changes the permissions of a file or directory
• chown: changes the ownership of a file or directory

1. Install software: You can install software in Linux using package managers like apt-get, yum, or pacman. For example, to install a package using apt-get, you can use the following command: sudo apt-get install [package name].
2. Manage services: You can start, stop, and restart services in Linux using the systemctl command. For example, to start the Apache web server, you can use the following command: sudo systemctl start apache2.
3. Edit configuration files: You can edit configuration files in Linux using a text editor like nano, vi, or emacs. For example, to edit the Apache configuration file, you can use the following command: sudo nano /etc/apache2/apache2.conf.

These are just some basic tasks that you can perform in Linux. There are many more tasks that you can perform, depending on your needs and the specific distribution of Linux that you are using.

Assignment Brief 7: Implement system security and access control in Linux operating system.

Implementing system security and access control in Linux involves several steps to ensure that only authorized users can access system resources and data. Here are some steps to follow:

1. Use secure passwords: Ensure that all user accounts have strong passwords that are difficult to guess. Use a password manager to create and store unique passwords for each account.
2. Disable unnecessary services: Disable any services that are not required by your system to reduce the attack surface.
3. Keep the system up-to-date: Keep your system up-to-date with the latest security patches to prevent known vulnerabilities from being exploited.
4. Use firewalls: Use firewalls to restrict incoming and outgoing traffic to the system. Configure the firewall to only allow traffic from trusted sources.
5. Implement user access control: Implement access control policies that restrict access to system resources based on the user’s role or privileges. Use the Linux Permission system to restrict file and directory access to users and groups.
6. Enable auditing: Enable auditing to keep track of system activity and detect any unauthorized access attempts.
7. Use encryption: Use encryption to protect sensitive data on your system. Use tools like GPG or OpenSSL to encrypt files and communications.
8. Implement network security: Implement network security policies to prevent unauthorized access to your system through network interfaces. Use secure protocols like SSH to connect to your system remotely.
9. Monitor system logs: Monitor system logs for suspicious activity and security breaches. Configure log monitoring tools to alert you when a security breach is detected.
10. Train users: Train users on best security practices to reduce the risk of accidental or intentional security breaches.

By following these steps, you can implement system security and access control in your Linux system to prevent unauthorized access and protect your data.

Try to get good grades by getting ICT246 Operating Systems assignment assistance from our expert writers!

The assignment sample discussed above is based on ICT246 Operating Systems. This sample is just to show you what kind of content you can expect from our expert writers. In addition to this, our experts are well-versed in different operating systems like Windows, Linux, Mac OS, etc., and can provide you with the best assignment solutions.

At Singapore Assignment Help, our teams of experts are highly experienced in providing Operating Systems assignment assistance. We employ the latest technologies and advanced software to ensure that every student receives the best quality assignment solutions. Our online tutors can provide you with 24/7 assistance with your assignment-related queries and doubts. We also have a team of report writing experts who can help you write high-quality academic reports. With our assignment help, you can be sure of not only getting good grades but also an in-depth understanding of the subject.

So, don’t wait any longer and avail our assignment help services by simply searching “write my assignment Singapore”. Get in touch with us today and unlock the doors to success!