5 Advantages and Disadvantages of Real Time Operating System | Drawbacks & Benefits of Real Time Operating System

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5 Advantages and Disadvantages of Real Time Operating System | Drawbacks & Benefits of Real Time Operating System

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5 Advantages and Disadvantages of Real Time Operating System | Drawbacks & Benefits of Real Time Operating System


Real Time Operating System: What Is It?

A type of system software known as a Real Time Operating System (RTOS) is made to do multiple tasks at once and provide output in real time. Tasks are carried out on a scheduled basis without interruption. The system will always produce the same results even if it experiences the same failure multiple times.

What are the types of Real Time Operating System?

A central processing unit (CPU) can only handle one task at once. A real-time operating system, however, gives the impression that several program executions are occurring. To achieve this, switch jobs at the same time. 


There are two varieties of real-time operating systems, based on the mode of execution. The Hard RTOS and Soft RTOS are those. Results are delivered on a precise time basis via a hard RTOS. In contrast, a SOFT RTOS places less value on accuracy and time.

Real-time operating systems aren't perfect, even though they can produce results quickly. Like other operating systems, RTOS has several advantages and disadvantages. When developing a new device, it's important to weigh all the advantages and disadvantages.

I'll be talking about the 5 Advantages and Disadvantages of Real Time Operating System | Drawbacks & Benefits of Real Time Operating System. You will learn about the pros and cons of adopting the real-time operating system through this post.

Now let's get started,

Advantages of Real Time Operating System

1. Less Downtime

A real-time operating system ensures that the system uses more resources while maintaining the active state of all devices. Because of this, an RTOS-using system has very little downtime. Additionally, hosting providers use RTOS to achieve optimal results.

2. Task Management

It usually takes less time for a real-time operating system to switch between tasks. Task switching typically takes three microseconds or less. Faster task management like this guarantees that important tasks can be completed on schedule.

3. Efficiency

One application is the primary focus of a real-time operating system at any particular time. This will often be the program that is currently running. Everybody else in line will be kept in the waiting phase. 


As a result, the crucial duties can be completed on schedule and by the deadline in order to get the precise outcomes required.

4. Availability

An RTOS is a system that is available around-the-clock because it displays the best possible outcomes. It is therefore most appropriate for applications that require constant performance. In addition, an RTOS system can handle many MCU platforms.

5. Reliability

Error-free real-time operating systems are ideal for hard real-time operating systems (RTOS). It guarantees an improved method of handling errors. 


Furthermore, operating systems suffer from a problem called jitter, which measures the number of mistakes between successive loops. An RTOS can be optimized to experience less jitters if it is properly programmed. 


Disadvantages of Real Time Operating System

1. Multitasking

While an RTOS is capable of focusing on specific programs, multitasking is not the same. Only a few of the jobs are intended for them to perform. It is therefore not advised for systems that need multitasking.

2. Complexity

Underlying an RTOS interface are intricate algorithms. A typical user will find it challenging to write these algorithms. They will only be able to be written and understood by a seasoned developer.

3. Task Focus

An RTOS concentrates on a single application at a time, as was previously described. The major goals of this are to keep accuracy high and minimize errors. The rest of the applications, which are not urgent, must wait. The amount of time they will be on standby is not time-limited.

4. Program Crashes

Using a real-time operating system can result in frequent program crashes. An RTOS is unable to effectively divide memory domains, in contrast to a conventional O/S. Processes will therefore struggle to handle them.

5. Driver Requirement

Signal disruptions are a continual problem for real-time operating systems. Consequently, the computer needs to have the necessary drivers loaded in order to run at a consistent speed. With the assistance of drivers, an RTOS can react rapidly in the event of an interruption.

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