The Advantage,Disadvantage and Key Feature Of Time Sharing.pptx

Computer system servicing (CSS) is the process of maintaining, repairing, and installing computer hardware and software. It also involves setting up and configuring computer networks.

1. The Advantage,Disadvantage and Key Feature Of Time Sharing System and Real Time OS

2. Advantage of Real Time OS PREDICTABLE PERFORMANCE - Priotize task based on their deadline,ensuring that critical operations are completed within the allotted timeframe. EFFICIENT RESOURCE MANAGEMENT – Manage System resources like memory ang cpu time efficiently. DETERMINISTIC RESPONSE TIMES – Guarantee consistent and predictable response times and task making them ideal for system. HIGH RELIABILITY – Built with robust mechanism handle errors and prevent system crashes ensuring high reliability in mission critical applications.

3. Disadvantage of Real Time OS COMPLEXITY – RTOS are often more complex to deisgn and implement than general purpose operating system. LIMITED FLEXIBILITY – RTOS are typically optimized for specific applications and may not be as flexible as general purpose. RESOURCES CONSTRAINTS – RTOS often operate in resource constrained environtments . DEBUGGING CHALLENGES – Debugging can be challenging due to critical nature if task.

4. Key Features of Real Time OS Deterministic Behavior (Real-Time Scheduling ) RTOS ensures that tasks are executed within a guaranteed time frame. This is known as real-time scheduling . Task Scheduling RTOS provides mechanisms for managing multiple tasks, often through preemptive or cooperative scheduling . Multitasking and Multi-threading RTOS supports multitasking by allowing the execution of multiple tasks (or threads) simultaneously. Each task or thread is given a time slice for execution, ensuring responsiveness.

5. Advantage of Time Sharing System Multi-User Access : Time-sharing systems allow multiple users to access the computer system concurrently, providing each with a slice of CPU time. Efficient Resource Utilization : By switching between tasks or users quickly, time-sharing systems ensure that the CPU is used efficiently, with little idle time. This increases overall system throughput Fairness : Time-sharing ensures that each user or process gets a fair share of the CPU time, preventing any one user or task from monopolizing resources. This promotes fairness in multi-user environments.

6. Disadvantage of Time Sharing System Overhead Due to Context Switching : Frequent switching between tasks (context switching) introduces overhead, as the system needs to save and load states for each task. This can reduce the overall performance of the system, especially when there are many processes . Security Risks : Since multiple users share the same system, there are potential security concerns. Unauthorized access to resources and data might occur if the system is not properly secured, leading to vulnerabilities . Inconsistent Performance : The system's performance can be inconsistent because the execution of a process depends on the load from other users. If one process is resource-heavy, it can impact the performance of others, leading to delays or slower response times.

7. Key Features of Time Sharing System Multi-User Capability Concurrent User Access : Multiple users can interact with the system at the same time, each having their own session and using system resources . Time-Slicing and Task Scheduling Time-Slicing : The system divides the CPU’s time into small intervals or time slices, giving each user or task a slice of time in rotation . Interactive User Interface Real-Time Interaction : Users can interact with the system and receive immediate feedback, such as typing commands and getting results right away, as opposed to batch processing.

8. END