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Visual Basic is a programming language for creating graphical user interfaces. It runs on Windows, macOS, iOS, Android, and other platforms.

Since it’s common to create several applications with the same functions, it’s important to learn how to create strong, reusable code. Visual Basic is one of the most popular languages for creating applications, so if you’ve never created your applications, this is a great place to start. There are many platforms out there, such as Geektastic ( that offer a platform to practice online coding challenges in many programming languages, including Visual Basic.

In this post, we’ll show you what Visual Basic online coding challenges are and how they can help you learn the basics of programming in Visual Basic.

Visual Basic Programming for Dot Net

Visual Basic.Net (VB.NET) is an object-oriented programming language executed on the .NET Framework, meaning that it can fully access the libraries in the .Net Framework. In 2002, Microsoft launched Visual Basic.Net to replace Visual Basic 6 programming language. However, you cannot compile a code written on the previous versions on VB.Net.

It was designed to be easily understood by beginners and proficient programmers. It is easy to make a Graphical User Interface (GUI) and execute the work on the interface without writing a lot of codes.

You can create windows applications and others for the web using VB.Net and then use Visual Studio as the Integrated Development Environment (IDE). It will show you errors in the code and give suggestions, making your code reliable and scalable.

Challenges of using Visual Basic

It is a proprietary language

Visual Basic is written by Microsoft, which means that you cannot transfer it to other operating systems. It is a good language, but it is not suitable for powerful programming because it is slower than the other languages. The applications developed on VB only work on Windows Operating Systems, and it majorly caters to database applications and graphics.

It has memory limitations

Visual Basic is a GUI based development tool, and it has graphical elements that require more memory space to install and run. However, it cannot directly handle pointers, making it unsuitable for creating programs like games, which require a lot of processing time.

Better declaration of arrays by C

VB is slightly disadvantaged by C because C can declare arrays better than Visual Basic. One can start an array of structures at declaration time in C. You cannot perform this operation in Visual Basic.

Large talent pool

It is also easy to learn VB, making it popular among programmers. That means the talent pool is big, making it hard to find a job as a VB programmer.

Visual Basic Features and Characteristics

Visual Basic is used by many programmers globally, and it is popular because of the various features it packs. These features include:

  • Visual Basic is object-oriented. That means it treats everything as an object.
  • Visual Basic is an evolved programming language. The modern version is simple and capable of building numerous applications.
  • VB allows you to develop Windows, web and device applications
  • VB is not case sensitive, but it contains many other features that make it similar to other programming languages like Java, C and C++.
  • VB automatically clears unused objects, offering a good memory management system.
  • It is impossible to execute unexamined type casts on Visual Basic because it is a type-safe programming language.
  • Visual Basic is useful in discovering errors, and it has organized and scalable approaches for code recovery and formatting.
  • VB supports Boolean conditions for decision making, simple generics and a standard library.
  • VB features events management and automation of garbage collection.
  • There is simple multithreading which makes your applications multi-task simultaneously.
  • When creating a user interface on VB, you use the drag and drop feature.
  • VB lets you inherit your form from already existing ones on Windows Forms.

The Rise and Fall of Visual Basic

The Rise of Visual Basic

Visual Basic 1.0 was launched when Microsoft released Windows 3.0, and it grew in popularity because of its practicality. It was simple to understand and navigate than languages like C++. Programmers loved it because you could create a user interface easily and get coding quickly.

Its edit-and continue feature allowed one to run their programs, identify errors, fix them and then continue coding.

When the VB6 was released, it became more popular than the C++ programming language, and it was a great improvement over the previous versions. Microsoft launched Visual Basic.Net, which was a powerful tool that had many features useful for business developers.

What Went Wrong with VB?

Visual Basic saw a decline in users when C# introduced type safety and memory management features, which were key features for VB programmers. C# became more powerful and desirable to developers than VB.

Nowadays, VB is not popular among professional programmers and the decision by Microsoft to side-line it in favour of C# made VB less desirable. In 2020, Microsoft announced that it would no longer add new features to the Visual Basic (VB.Net) programming language.

What Is The SAP Kernel is displayed on a marble background.

The SAP Kernel is a crucial aspect of your SAP system. It is like the JVM to Java and contains a set of native OS binaries that is started and run on a specific operating system (OS). The central program requires that an SAP Kernel upgrade is done frequently so that your system runs smoothly and at its best. Here is more you should know about upgrading your SAP Kernel.

How to Check Your Kernel Version

Assess the Version

This is quite easy as all you need to do is check your user manual for the configuration of your SAP system, which would have also listed out the kernel versions in place. You can go ahead and use transaction code SM30 (Display or change system parameters) to determine your kernel version.

Check the Available Upgrade Packages

Assessing the availability is even simpler and only requires some research on the internet. Just look up SAP Note 1250290 to get details of all the upgrade packages available for your SAP Kernel version. The next time you plan to upgrade, you already have the information with you and can start preparing quickly.

Top Reasons You Should Upgrade Your SAP Kernel

For Better SAP Service Level Maintenance (SLM)

Since the SAP Kernel is a crucial part of your system, you may experience performance issues when it gets outdated. To solve this problem, there is something called SAP Service Level Maintenance (SLM) which allows updates and fixes to be applied on the current kernel within weeks of their official release by SAP. As you go about it, make sure to run an up-to-date Kernel version.

To Facilitate Bug Fixes and Other Security Updates

Bug fixes are another part of SLM, where bugs get fixed when reported by customers. Other security updates released by SAP also keep your system secure from potential attackers or any other malicious threats. The latest security updates have to be applied immediately.

To Improve Performance and Response Times of Your SAP Applications

Another advantage is that it will improve the performance and response times of your SAP applications, which means a better user experience for all users involved. This can also help ease up the load on your servers, resulting in overall performance boosts.

To Avoid SAP Security Vulnerabilities

An excellent example of this could be a handful of security issues discovered and patched previously in HANA systems. If these vulnerabilities were not applied, it presented a considerable risk to the businesses using the applications.

To Stay Updated with the SAP Kernel Fixes

The SAP Kernel team indeed releases security updates regularly as part of SLM. However, there are other fixes to issues that customers have reported in case any bug gets out of hand. With each Kernel version, you will experience improvements over the previous one, so it’s always recommended to keep up with the latest update.

To Get Fixes for SAP SD and BW Systems

If you have installed systems like SAP ERP, then there is another reason how upgrading your Kernel may help improve performance. The SAP ERP kernel fixes are only applicable if you use SAP GUI and SAP NetWeaver Client Connectivity. These updates are only available if you have upgraded your kernel so that you can see the benefits.

To Help You Plan for Upcoming Releases of SAP Systems

When you upgrade your kernel version, staying updated with the latest developments and enhancements is crucial. It enables the kernel to be better prepared and plan for upcoming changes and improvements that may affect your system.

How to Perform SAP Kernel Upgrade

Perform a Cluster Check

Before you begin the actual upgrade process, ensure that your system is in healthy condition. First, do a cluster check so that you can identify whether there are any issues with the nodes or components of your SAP.

Start the Upgrade Process

The actual upgrade process is initiated in a cluster environment, where all of your nodes or servers are working together and sharing workloads. Depending on your version of SAP, you can activate the kernel upgrade from different menus.

Wait for Initialisation

Once these settings are in place, wait for the progress bar to fill up with green, and then you are ready for the next step.

Verify Changes, Errors and Outputs

The kernel upgrade process has been completed when your screen is back to normal with no output or error message in red font. If there is an error, then that needs to be resolved first before proceeding further.

Take Actions on Error Messages

If you get an error message which says “Kernel Upgrade failed”, then that means there is something wrong somewhere, be it a configuration, master data or specific system catalogues.

Verify All Components

After you have resolved all the errors, make sure that all SAP components have been upgraded or not. When you initially initiate the kernel upgrade process, it looks for all components that need to be upgraded and locks them after the verification process is done.

Perform a Cluster Check Again

Since you have just done a Kernel upgrade, it is imperative to perform a cluster check again after the upgrade has been completed. This will ensure that your SAP environment is in order and everything is working fine.

Restart the Nodes

Once you have confirmed that everything looks good, proceed with restarting all the nodes of your SAP system one by one from the “Master Control Program” (MCP). You can restart a node by going to “SAP GUI”, → “Administration”, → “System Management”, and clicking on the System Restart button.

SAP Kernel Wrap Up

If you have been hesitant to upgrade your SAP kernel because it sounds like a nerve-wracking and challenging process, we want you to know that upgrading is not as hard as it may seem. Simply follow our procedure, and you will be able to upgrade your SAP kernel systems with ease.

Core Components of Laboratory Information Management System is displayed on a marble background.

Laboratory information management system (LIMS) is not a new term, but most people don’t know how to use it.

Generally, a laboratory information management system is a lab software type that deals with all information relating to the laboratory for things like results reporting, data analysis, and sample tracking.

This article will discuss many areas revolving around LIMS, including some of the core components of laboratory information management system, how it can help in running a lab efficiently, and the benefits it brings.

Therefore, if you don’t know how to select a suitable LIMS for your laboratory, continue reading.

The Meaning of Laboratory Information Management System (LIMS)

Laboratory Information Management System is among the most outstanding software that offers support and solution to complex laboratory processes. This system is used widely across research institutions and industries to accurately distil and manage many data to deliver greater and faster results.

LIMS works by providing an excellent system to standardise, track, centralise and organise all processes, tasks, and data in the lab. In general, a Laboratory Information Management System is a database but works in a complicated manner.

The Core LIMS Components

An excellent LIMS system consists of three main components: protocol execution, sample tracking, and storage organisation. It is extremely difficult to make sure all data is with no error when different researchers in a lab employ different methods.

Therefore, many research labs and industries rely on LIMS to ensure all data results are mistake-free.

1. LIMS Protocol Execution

It is a major component that drives the lab’s procedures, steps, and workflow standardisation. It ensures that every available lab tech follows a specific procedure when processing a certain sample.

The LIMS process flow should be followed regardless of the person processing the samples to get repeatable and accurate results. A Laboratory Information Management System PDF called standard operating procedure (SOP) has all steps to be followed.

Laboratory Information Management System procedures and protocols are standardised across the lab; hence all lab staff will execute the right steps when running test samples in the correct order.

2. LIMS Software Sample Tracking

The main work of the LIMS tracking system is to follow the transformation of a certain sample from the time it enters the lab through testing and storage. Therefore, the management system will record all associated data for a sample upon accession. Information to be recorded include:

  • Collection date
  • ID
  • Source
  • Quantitative information

The sample’s data is continuously taken as it progresses in its workflow and all data stored in LIMS, which include:

  • Derived sample data
  • Test results
  • Time-based study metric

Additionally, a laboratory information management system tracks the person interacting with the sample and where. Therefore, the lab sample should not be tracked only by the external barcode label but with the chemical index allocated for easy identification.

3. LIMS Storage Organisation

This is responsible for tracking the sample throughout its lifecycle in the lab. The laboratory information management system deals with an individual sample from a particular box is stored in the sample vial or tube kept in.

Also, it keeps track of the drawer box and the drawer rack the sample is stored in together with the shelf of the rack and the room number. The storage hierarchy plays an important role in locating a particular sample easily, and it includes:

  • Sample
  • Position
  • Box
  • Drawer
  • Rack
  • Shelf
  • Freezer
  • Room

Why Use LIMS In Modern Labs?

Today’s laboratories analyse and process a large amount of information, most of them without a LIMS system. The chances of getting errors in results are very high since accuracy and speed are affected negatively.

In some industries, it can mean a delay in launching a new product in the market, and some can be a delay in the life-saving vaccine. Therefore, it is important to have an online management system for lab accuracy, organisation, and collaboration.

A LIMS system can help ab staff to stay connected considering collaboration views. It is easy to assign sample tasks to team members since everyone has a protocol to be followed.

It is easy to annotate, comment, and share documents within the lab if LIMS is in place to help. All emails and phone calls are recorded hence making it easy to collaborate with eternal parties.

Advantage of Laboratory Information Management System


Data Centralisation

Having a central system that collects and manages all lab information is the biggest benefit that LIMS software can offer. This benefit is regardless of the size of the lab. Information on instruments, inventories, and studies can be kept in one central location for easy access among lab staff members.

Additionally, LIMS offers collaboration, reporting, and analytics functionality hence making all captured data useful.

So, what is the best LIMS type to use? The answer will depend on individual and lab needs. Clear organisation and greater efficiency benefits are seen when using LIMS systems, hence modern labs’ main reason.

In this article, we will discuss what is called visual basic and the best way to learn it. Also, we will discuss the feature of visual basics and the different ways in which one can learn visual basics.

What is Called Visual Basics?

Visual Basic is a programming language that is created by Microsoft and is known for the Component Object Model (COM). This was first released in the year 1991 and declared as a legacy in the year 2008 by Microsoft. Then they started this up again and wanted to make this an easy to learn and use programming language.

The visual basic allows you to access multiple things and also use multiple applications on a computer. This means that a programmer can use the visual basics to create an application of his own. He will not have to use any other programming language to modify or to make it a website.

Programs that are written in visual basics can also be used in Window API but need to have declarations. The final release of the visual basics was done in the year 1998 and was called visual basics 6.0.

In the year 2014, many people still recommended using visual basics over visual basic.NET. Then there was a survey conducted in the year 2015 on the most used programming languages. It appears that Visual Basic is the second most used programming language that is used in the market.

What are The Features of Visual Basics?

Here is a list of the feature which is there in the visual basics 6.0.

  • You will get to draw your application and also the results.
  • There are lots of icons and pictures which you can use in your application.
  • It has the response to the function performed by the mouse and keyboard.
  • There is also a clipboard and a printer function which you can use.
  • They have mathematical, string handling, and graphic functions in the app.
  • They have the power to support fixed and dynamic variable arrays.
  • You can use either a sequential or a random access files support system.
  • This is a de-bugger and also an error-handling facility.
  • They have Active X support.
  • They have a wizard system that you can use to create your application.

What are The Different Ways to Learn Visual Basics?

Here is a list of ways you can choose to learn visual basics from.

  • Take The Visual Basic Course From Your University

If you have started programming in your university and have a good teacher, then you can ask them to teach you. Or else you can search the internet for those universities which teach visual basics and take admission there.

  •  Receive Training From Microsoft

You can go to the Microsoft learning page and then click on visual basic. There you can see blog posts as well as videos which you can see and read to learn visual basic. Or else you can click on the link provided by Microsoft to learn the language from somewhere else.

The best way to learn visual basic is through a teacher who is there in your university.