Just 4 Programmers

Are you thinking about designing a printed circuit board? PCBs are quite complicated, and you need to make sure that the layout that you choose is going to operate as well as you want it to. For this reason, we have put together some top tips for PCB design layout. Keep reading if you would like to find out more about this. Leave Enough Space One of the most important design tips for PCB layout is that you need to make sure that you are leaving enough space between the components. While many people might think that packing components closely is the best route to take, this can cause problems further down the line. This is why we suggest leaving extra space for the wires that will spread. This way, you’ll have the perfect PCB design layout. Print Out Your Layout Struggling to find out if your components sizes match? Our next tip is to print out your layout and compare the printed version to your actual components. Datasheets can sometimes come with errors, so it doesn’t hurt to do...

Are you an artistic designer but a little lost in your creative processes? Don’t worry as it happens to all of us so that’s why I decided to write this blog. If you are just starting out on your design career path or just curious for some extra tips then this should give you some needed help. Organize Yourself This is something that all design students should learn to master and take control of their own calendar. If you can prioritize your projects and manage all the different deadlines then this will help in the long run. You will be able to concentrate on being creative and not miss targets later on. There are many great ways to keep track from getting a simple calendar and marking projects and deadlines on it or downloading an app with reminders straight to your phone. Also, a great tip I picked up at Uni was completing boring writing assignments that were getting in the way of my creative time. EssayPro is an essay writing service that I used to finish off my work and left ...

There are so many things to learn before to choose which language is good for Machine Learning. We will discuss each and everything about R as well as Python and the situation or problem in which situation we have to use which language. Let’s start Python and R are the two most Commonly used Programming Languages for Machine Learning and because of the popularity of both the languages Novice or you can say fresher are getting confused, whether they should choose R or Python language to commence their career in the Machine learning domain. Don’t worry guys through this article we will discuss R vs Python for Machine Learning. So, without exaggerating this article let’s get started. We will start it from the very Basics things or definitions. R vs Python for Machine Learning Introduction R is a programming language made by statisticians and data miners for statistical analysis and graphics supported by R foundation for statistical computing. R also provides high-quality graphics and...

According to a survey taken of the Scrum Alliance, approximately 70 percent of all groups handling Agile software development believe there are issues present between various internal departments within the company. The fact is, Agile groups work at a much faster pace. In order to mark progress, they use various markets, and in some cases, this puts staff members in direct conflict with each other. The disjunction described above among Agile groups, as well as their peers, is a common mistake in the realm of Agile software development. However, there are a number of other reasons that some Agile projects are unsuccessful as well. You can learn about some of these issues here, and if you have some problems not listed in the article, you can check out DaniWeb software development forum. Knowing what these mistakes are can help you avoid them. Not Using Customer Input There is a large number of groups that don’t pay attention to or use the information that is gathered from their c...

A “key” is one of the most basic and important concepts of the Database Management System (DBMS); the keys helps us work easily with the records and the tables in our database by providing us with the ease of accessing and retrieving the data from the table. A primary key is the first key to be understood as it uniquely identifies the particular record of any table. The primary key and foreign key however, must not be confused with each other as they have a completely different definition as well as usage. Here are the differences between the two. Image Source Difference between Primary Key and Foreign Key S.no. Primary key Foreign key 1 The primary key of a particular table is the attribute which uniquely identifies every record and does not contain any null value. The foreign key of a particular table is simply the primary key of some other table which is used as a reference key in the second table. 2 A primary key attribute in a table can never contain a null value...

In this tutorial, we are going to talk about web scraping using python. Firstly, we have to discuss about what is web scraping technique? Whenever we need the data (it can be text, images, links and videos) from web to our database. Lets discuss where we should need the web scraping in real world. Nowadays, we have so many competitors in each and every field for surpassing them we need their data from the website or Blogs to know about products, customers and their facilities. And Some Admin of Particular website, blogs and youtube channel want the reviews of their customers in database and want to update with this In, this condition they use web scraping There are many other areas where we need web scraping, we discussed two points for precise this article for readers. Prerequisites: You just have basic knowledge of python nothing else so, get ready for learning web scraping. Which technology we should use to achieve web scraping? We can do this with JavaScript and python bu...

While security has always been a concern for individuals and companies online, today this is more true now than ever. Hacks and data breaches are skyrocketing and hundreds of millions of people are being compromised every year. While this happens to big businesses, it can also happen to small entities or even individuals as well. As a result, it is more important to ensure the code you or your company is writing remains secure. While it is impossible to avoid every potential attack, hack or data breach, you can try your best to prepare. While things such as testing frequently and using passwords can help, they are far from the only ways to secure your code. With that in mind, this article is going to look at a few tips for secure programming and coding. Utilize Log Management Whether you have programmed an app or a piece of software, it is important to monitor it going forward after the initial coding is done. Without any sort of monitoring, you may not be any the wiser if someone...

You realize that you need a VPN. The decision that you have to make is if you want to set up a VPN or if you want to use a VPN provider. If you go the provider route, the provider may ask you to choose the protocol you want. Or if you set up a VPN, you need to know which protocol you will use. In this article we are going to take a look at some of the more popular protocol standards to help you get an idea of which one you should consider using. Image Source PPTP This is a popular standard for VPN connections. It’s going to be difficult for you to find a VPN provider that does not offer PPTP connections. PPTP is Point-To-Point Tunneling Protocol . This VPN protocol first came on the scene back in 1995, although its development dates back more than a decade before it’s public release. PPTP was designed based on the previous PPP standard. The PPP standard did not have a safe tunneling feature. When it was first introduced, PPTP was a Windows system protocol. However, it quickly beca...

Up to 92 percent of all apps available today have security weaknesses or flaws that can be easily exploited by nefarious cyber-criminals. If you are creating an app or planning to launch one in the near future, then making sure it is secure is a must. After all, there’s no one who wants to use an insecure app. While using the services of third party service providers, like https://thinkwgroup.com/ , is a great start, there are other steps you need to take to achieve a level of true security. Keep reading to learn what you can do to safeguard all the hard work you have done. Image Source Ground Up Protection When it comes to any type of software project, including apps, you need to make sure that security is the main priority from the very first day you begin working on it. However, it is crucial to remember, a native app is extremely different from a web application. If you have a web application, software and data are found exclusively on a service and the client-side is esse...

You do not have to enroll for a Computer Science degree to start doing some programming or coding. As a student, you can learn some programming languages that can help you achieve your dreams while still in school. Students can also make pocket money from coding. In this post, we will talk about the different programming languages that are fit for students. There are various resources students can use to start their first steps in learning the programming languages of their choice. There is no need for spending more funds to learn coding and programming as a student. If children can learn to program , why not you? By making good use of the free programming courses and classes, you can begin your journey to becoming a sought-after programmer in the future. However, if you feel that the free resources will not suffice your programming needs, you can go for a paid course. They are more extensive, and if you like, a one-on-one class will help you ask questions whenever you need. You may ...

iCloud Unlock tool is a very efficient and effective tool to bypass the iCloud activation lock of the iPhone. It is a software which can be installed on any phone and can be used to remove the iCloud lock from the screen of the device. So, if you don’t the real Apple ID with which the iPhone’s iCloud is registered then you can unlock your device easily using iCloud Unlock. It is the ultimate solution to recover the Apple ID as well. It has a simple interface and is widely used by iPhone or iPad users. However, you need to pay to use this software to bypass the iCloud activation screen. Here you can find the top 7 alternative solutions for iCloud Unlock . So, if you are facing any problem to use iCloud Unlock, then you can select any of these solutions as per your choice. 1. DoulCi Activator DoulCi Activator is a tool used for bypass the iCloud lock. It has a simple set of instructions to be followed to unlock the iCloud lock. You can download it from the web easily. However, it requi...

An operating system is the basic mechanism behind the working of the computer systems and mobile devices and so, understanding the operating system becomes very important from a user’s perspective. The various types of Operating systems are as follows: Types of Operating System 1. Batch Operating System As, is very clear from the name itself, a batch operating system works by grouping the jobs into batches, hence the CPU does not directly interacts with the jobs, instead it interacts with the batches which are created by the operating system on the basis of similarities among them. It supports multiple users and the idle time of the CPU is very less. Since, it works by grouping multiple jobs into lesser number of batches, managing a large amount of work becomes easy in a batch operating system. However, batch operating systems are costly and debugging is harder. Example: Payroll systems, Bank statements etc. 2. Time-Sharing Operating System In the time sharing operating syste...

Unikernels are an emerging deployment pattern that engineers are choosing over Linux and Docker because of their performance, security and size. Researchers from NEC are reporting boot times in 5ms while other users talk about how small their VMs can get – in the kilobyte range if you’re using c. Still others like OSv have measured up to a 20% performance advantage in popular databases. However they have remained out of a lot of developers reach because of their low level nature. That is until we decided to open source a tool called ops.city (OPS) . OPS is a new free open source tool that allows anyone, including non-developers to instantly build and run unikernels on linux or mac from their existing software. There is no complicated re-compilation. There is no LDFLAG twiddling or random patching of various libraries you’d never patch yourself. OPS goal is to democratize access to unikernels. Ok – enough of that – let’s build some unikernels. First thing you’ll want to do is downloa...