Classification of Digital Computers

-

 


                                                      M.SARULATHA
Assistant Professor
                                                                                                                               Dept. of CA,JJC.

          Computers can be categorized into Analog, Digital and Hybrid Computers. Each category is used for its own purpose and has its own significance.

Analog Computers

          Analog computers are mainly based on voltages and current with continuous electrical signals and display the output continuously.

          These computers store the data and perform calculations quite differently than digital computers which make use of symbolic representation.

          These are generally slower in speed compared to digital computers. Some of the examples are thermometer.

Digital Computers

          Digital computers are computers that process the data in binary form ie.0’s and 1’s.

          The main benefit of digital computers is that they are quick and re-programmable. Some of the examples are laptops, smartphones, and calculators.

Hybrid Computers

          Hybrid computers are a special purpose computer that has a combination of both Analog and digital computers.

          They are digital computer which accepts Analog signals and converts them to digital form.

          These are generally used for scientific applications, airplanes, and hospitals. Some of the examples include electrocardiogram machine, ultrasound machine, monitoring machine.

Advantages and disadvantages of Digital/Analog computer

 

          The main advantage of Digital computers is that they can store loads of data and it is very accurate.

          Analog computer is quick and hence fastest. Digital computers are comparatively slower than Analog and this is the main disadvantage.

          Analog computers stores fewer data and hence digital computers are great of memory is considered.

Features of Digital computer

  • Good Memory – Digital computers can store a large number of data and can retrieve data in a fraction of second. The data can be stored for any duration and retrieved anytime.
  • Very Flexible – These computers can perform multi-tasking without any human interference and hence they are very flexible and versatile.
  • Automatic – These devices once started are automatic. They do not need any intervention until required by the task specifically.
  • Good Speed – Digital computers are high in speed and carry out all the operations with very fast speed.
  • Accurate – These devices help in storing all the information which helps in retrieving accurate data at any point in a given time.

 

Comments

Post a Comment

Popular posts from this blog

Operating System Structure

-
Image
M.Sarulatha Monolithic System  or Simple System: A monolithic system structure refers to a software architecture where all components are tightly integrated into a single, self-contained unit. This means that the entire system is built as a single executable file, with all functionality and data stored within it. Characteristics of Monolithic Systems: 1. Tight Coupling: Components are heavily interconnected and interdependent. 2. Single Executable: The entire system is built into a single executable file. 3. Centralized Data: Data is stored within the single executable or in a centralized database. 4. No External Dependencies: The system does not rely on external services or components. Advantages of Monolithic Systems: 1. Simple to Develop: Easier to build and test, as everything is self-contained. 2. Fast Deployment: Quicker to deploy, as only a single executable needs to be deployed. 3. Easy Maintenance: Simpler to maintain, as all components are within a single codebase. Disa...
Read more

Asymptotic Notations

-
Image
Asymptotic Notations: Asymptotic Notations are mathematical tools used to analyze the performance of algorithms by understanding how their efficiency changes as the input size grows. These notations provide a concise way to express the behavior of an algorithm’s time or space complexity as the input size approaches infinity. Rather than comparing algorithms directly, asymptotic analysis focuses on understanding the relative growth rates of algorithms’ complexities. It enables comparisons of algorithms’ efficiency by abstracting away machine-specific constants and implementation details, focusing instead on fundamental trends. Asymptotic analysis allows for the comparison of algorithms’ space and time complexities by examining their performance characteristics as the input size varies. By using asymptotic notations, such as Big O, Big Omega, and Big Theta, we can categorize algorithms based on their worst-case, best-case, or average-case time or space complexities, providing valuable in...
Read more

ASP.NET Events Handling

-
Image
  ASP.NET  Events Handling M.SARULATHA Assistant Professor Dept. of CA,JJC.           ASP.NET provides important feature event handling to Web Forms. It let us to implement event-based model for our application. As a simple example, we can add a button to an ASP.NET Web Forms page and then write an event handler for the button's click event. ASP.NET Web Forms allows events on both client and server sides.           In ASP.NET Web Forms pages, however, events associated with server controls originate on the client but are handled on the Web server by the ASP.NET.           ASP.NET Web Forms follow a standard .NET Framework pattern for event-handler methods. All events pass two arguments: an object representing the object that raised the event, and an event object containing any event-specific information. Example: Creating Event Hand...
Read more