An Overview of Mobile Code and Examples

Mobile Code is a term that is used frequently in debates and discussions on modern technologies. However, when asked about what it is, most people scratch their heads. This article is to provide more details about what mobile code is along with suitable examples.

What is Mobile Code?

Mobile Code can be considered as a software program or a program’s portion obtained from various remote systems and transmitted over a network. It is implemented on a local system and does require accurate installation or implementation by the recipient. It is also known as active capsules, viable content, or remote code.

Transferring of mobile codes takes place through a storage media or a network, embedded in documents, emails, or websites. The difference mobile codes have with traditional codes is that they are not completely installed on a local system. Most of the users are unaware of the mobile codes installed as they will be effortlessly distributed and run. The codes do not require the host’s permission. It is always used in a malevolent context to cause significant damage to the computers in different layers.

Let’s discuss mobile code with an example. Suppose you are trying to complete an online course using your computer that the course provider may ask you to update your computer system to the latest Java version. The reason for this is that your online course will be offered in a Java program, which is a popular example of mobile code.

It cannot be considered an application you usually install on your computer or your mobile phone. The program will be provided by the server through the internet you use on your computer.

Mode Code Examples

  • Java

Java is mostly used for small applications. Minecraft is a popular example of an application that uses Java.

  • JavaScript

JavaScript is used widely on websites to enhance their interactivity. You can experience the performance of JavaScript when you linger on a website’s button and find it changing its color.

  • ActiveX

ActiveX is used by the Internet Explorer of Microsoft to load various media.

  • PDF

PDF presents documents that are independent of operating systems and software.

  • Flash animations

Flash animations were used by the old cartoon videos that were popular on the internet before the emergence of YouTube. The New Grounds game in the 2000s is another example of Flash animations.

Malicious mobile code

Malicious mobile code can affect the hard drives of your computer system, which may cause rapid code replication. These codes will attach to the web software, require a plug-in if you want to download it or the codes will be embedded in a site that is already infected. This may happen when you visit a website to download content that may seem harmless, like a song or a document. If the content you download is infected and you execute it in your system, the infection may spread all over the system. Therefore, users have to be very careful with malicious mobile code.