Computer's Body, Mind, and Soul: Which Parts? (Simple)

Computer’s Body, Mind, and Soul: Which Parts?

Here are the body, mind, and soul of a computer. Do you think there is such a thing as a computer mind? Here’s the scoop. Let’s get started! The Body, Mind, and Soul of a Computer A computer is very much like a human body, and different parts can be compared quite easily. Several referrals to the body and a computer are similar in the components that perform and control various tasks, and it can be laid out in a language that doesn’t need to be decoded. Just as the human body comprises cells that make tissues that make organs that work as a system, they apply to a computer. A computer is based on circuitry cells, working together to store, send, and receive information to and from other computers in much the same way.  So when comparing a computer system to a human body, what exactly is the body, mind, and soul of a computer?  The Body of the Computer For argument’s sake, you can take this with a grain of salt, but the computer as a whole is akin to the human body. Not one part of the human body can do everything on its own; there are signals from the brain to neurotransmitters that tell the muscles to move the joints, to think, to see; to do everything that a human does.  The brain is a pretty powerful thing, arguably the most important part of a human, but without the muscles, the heart and lungs, kidneys, and all the other organs and innards, the brain would just be chilling on its own, with nothing to see but the four walls around it.  What makes the body’s components so great is the body itself; the vessel that encapsulates all of the pieces in one place; the body. Without the bones and skin, the body would really be globes of dodgy organs and puddling goo.  A computer’s body would

Deleting System32 Folder: What Happens? (Don't!)

Deleting System32 Folder: What Happens?

Here’s what happens when you delete the System32 folder in Windows: Just don’t do it. Learn here why it’s a bad idea and what happens if you do it. Let’s get right into it! Why NOT Deleting the System32 Folder in Windows? You may have seen some “delete System32 to make your computer run faster” or “your System32 is causing viruses” jokes swirling around on the internet. An honest and straightforward advice? DON’T fall for it! Windows heavily relies on the System32 folder, so deleting it will ultimately result in the system crashing and becoming inoperable.  In simple terms, the folder System32 is an essential aspect of running your Windows computer. The computer program is essentially just a collection of files, and the vast majority of all Windows files reside in your System32 folder. So, in essence, System32 is Windows.  In most cases, it’s pretty difficult to delete the System32 folder from your computer. However, some have unfortunately fallen prey to a scam that suggests they should do so.  Below, you’ll find the answers to the most common questions concerning why you should never delete System32 and what might happen if you do: What is System32 in Windows? First, we must answer the biggest question: What is System32 in Windows? Located at C:\Windows\System32 or C:\Winnt\system32 on your computer, System32 is a Microsoft Windows system directory that is crucial to the Windows system. It contains many essential operating system files necessary for running the Windows system and other software programs.  You’ll find various files within this folder, with the most common file types as DLL (Dynamic Link Library) and EXE (executable) files. Other vital programs include Control Panel, Disk Management, Calculator, PowerShell, Task Manager, and more.  When you open almost any file on your computer, you’re most likely running from the System32 folder. For example, using the Command Prompt is actually operating cmd.exe from the System32 directory.  Since the System32 folder

PCA vs. ICA: Difference? (Coding Examples)

PCA vs. ICA: Difference?

Here’s everything about PCA vs. ICA. You’ll learn: Basic concepts of PCA and ICA How to implement PCA and ICA in Python The similarities between PCA and ICA The differences between PCA and ICA Lots more So if you want to understand PCA and ICA and how they differ, then you are in the right place. Let’s dive right in! Basics of PCA and ICA PCA (Principal Component Analysis) an ICA (Individual Component Analysis) are based on similar principles, but still they are different. It isn’t easy to immediately understand all the formulas given when describing the PCA and ICA methods. Mathematics is a beautiful science, but you need to go step by step to understand this beauty—it is almost impossible to jump several steps at once. Often it is necessary to first investigate a particular method with a simple example so that you can form a picture in your head, which you can extend to more complex cases. This is especially true in the case of multidimensional spaces such as the concepts of PCA and ICA.. The human brain cannot imagine an n-dimensional space for n > 3. We will look at simple examples of PCA and ICA applications and try to understand the basic principles behind these methods. Let’s start by setting a problem for the PCA: Understand PCA and How to Implement It in Python If we are talking about data analysis, then most likely you will use multidimensional feature arrays. Such arrays, by the way, are called tensors. It often happens that the dimension of this data is redundant. For example, one quantity may directly depend on another. Let’s say you can calculate the square footage of an apartment from the square meterage of an apartment. This means that we do not need to use both of these values in the analysis; you can discard one of the values (square footage or square meterage) in your

Computerized Database: Meaning? (Everything to Know)

Computerized Database: Meaning?

Here’s everything about computerized databases. Whether you know it or not, you have already used one. So if you want to know what a computerized database is, then you are in the right place. Let’s dive right in! Computerized Database 101 If you’ve ever bought a plane ticket online or booked a hotel through an app, you’ve used a computerized database. A computerized database is a collection of information that’s organized and accessible through a computer. Computerized databases have access to users’ information while allowing its users to find and retrieve files in a much simpler manner than older, manual databases. If you’ve ever seen a warehouse using a manual database, you know how much more efficient a computerized database is. The Basics of a Computerized Database A computerized database is a collection of data compiled on a computer to increase the efficiency with which you can access, retrieve, and organize data. Computerized databases consist of fields, records, and files.  Fields are the actual data sets stored in a database. These include things like transaction amounts, names, dates, and any other form of data. A field represents an attribute of some current event, thing, or person. On a table, this data appears in columns so you can easily view and understand it. Records are the related attributes of a set of data that shows itself in a table. Records are the rows on a table. Records consist of fields and can include more than one sort of data. A record represents one whole entity while a field is describing just one piece of data. Files are groups of related records. A file is the whole data set, including all associated records and fields. Records in a file always have a primary key that allows you to differentiate one from one another. Computerized Database vs. Manual Database Manual databases were the only means of tracking information before the 1960s and introducing

Ethernet Light Blinks Orange/Green: Meaning? (How to Fix)

Ethernet Light Blinks Orange/Green: Meaning?

Here’s what a green, yellow, orange or red blinking Ethernet port light means: It’s a good sign if your Ethernet port has a blinking light. If you connected something to your Ethernet port, that light shouldn’t be off.  Either blinking or stead green, yellow, orange or red light. There’s no standard for how the lights should behave on Ethernet ports. So if you want to learn all about your blinking Ethernet port light, then you’re in the right place. Let’s get started! What Do Blinking Orange (Green, Yellow, Orange, Red) Ethernet Ports Light Mean? When you plug in an Ethernet cable to supply internet to a device, you expect a stable connection.  Despite that, things don’t always work, and you can troubleshoot more effectively when you understand the indicator lights at each Ethernet port. You might have the Ethernet light blinking but no internet, for example. Ethernet lights are not standardized. Each manufacturer decides how to use the Ethernet lights and what they convey. Colors, blinking speeds, and pairs of lights can all denote different interactions. All of that said, a blinking Ethernet port, regardless of color, usually indicates that data is actively transmitting through the port. Your Ethernet port light might even blink when your computer is off. That’s the quick answer, but we can break down the more specific details together in the following sections. What Do Blinking Lights Mean on Ethernet Ports? An Ethernet cable plugs into two separate devices. Most of the time, a computer will be on one end and a switch on the other.  Since every manufacturer makes its own rules, it’s easier to break everything down into two categories. First, we’ll look at computer manufacturers. Later, we’ll cover modems, routers, and switches. When it comes to the light on your computer port, the maker of the computer itself doesn’t matter. HP, Dell, and the rest are not designing and manufacturing the Ethernet ports. 

Laptop Fan So Loud All of a Sudden: Why? (How to Fix)

Laptop Fan So Loud All of a Sudden: Why?

Here’s why your laptop fan is so loud all of a sudden and how to fix it: If it’s sporadic, the reason is that the more load your laptop is under, the more calculations it needs to do, and the hotter its components get. If it’s persistent: Software issues Blocked vents and dirty fan Hard disk failure Malware Outdated drivers You can fix it by: Kill background processes Clean your fan Cool your laptop So if you want to learn all about why your laptop fan is so loud all of a sudden and how to fix it, then you’re in the right place. Let’s dive right in! Why Is Your Laptop Fan So Loud All of a Sudden? You’re working away and the gentle hum of your laptop you’re accustomed to suddenly gets louder. Before you know it, the noise escalates to a whirring and grinding noise louder than your lawnmower and it’s all you can do to keep you from smashing it. If this experience sounds familiar to you, don’t panic. The cramped up space inside the machine and the high capacity batteries it utilizes to run causes heat buildup. And as soon as things heat up, your laptop fan runs faster, resulting in noises. This article discusses why your laptop fan is so loud, how to prevent the noise from your laptop fan (at you own risk), and some frequently asked questions. What Does a Loud Laptop Fan Mean? Here’s what you should know about fan noise. The fan, probably the loudest laptop component within your computer, performs a vital function of cooling your laptop, specifically the CPU (central processing unit). All computers emit heat due to the electricity they consume and then transmit it around their circuitry, all in compacted space.   So some noise is okay, but if for one reason or another (which we’ll discuss in more detail later), your laptop fan needs to dissipate

Computer Screen Colors: Easiest on the Eyes? (All the Info)

Computer Screen Colors: Easiest on the Eyes?

Here’s the easiest color on the eyes on a computer screen: Easy on the eyes are colors in the middle of the visible color spectrum. These include red, orange, and yellow. Blue is uneasiest on the eye. As a primary color, blue light tends to flicker more frequently than other primary colors like orange or red, and its wavelengths reach farther into the eye   If you want to learn how to say thanks to your eyes, then this article is for you. Let’s jump right in! What About the Easiest Color on the Eyes on a Computer Screen? As beneficial as our devices may be, technology is creating health problems. Carpal tunnel from hand movement and neck and spine issues from hunching over are two of the most noted conditions. Even the colors on your screen are suspect. As screens get smaller, so does the gradual damage.  There are preventive measures you can take to maximize eye health. Let’s take a look at the most comfortable color on the eyes on a computer screen, how to manage your settings, and ways to ensure your eyes stay strain-free and healthy. How Do Computer Screen Colors Impact Your Eyes? Surfaces absorb colors and reflect others. Our eyes have light receptors that transmit messages to our brain. These transmissions produce how we perceive the wavelengths of color.  The reflected colors are what our receptors capture, and our brain creates the reds, greens, violets, etc., that we’re familiar with. In other words, the orange isn’t actually an orange color. It’s transmitting a specific wavelength we recognize as orange. Crazy, isn’t it?  Eyes strain results from eye muscles forced to work harder when we’re looking at our devices. Other elements, such as contrast and glare, can add additional stress. What we want to do is find the best ways to minimize this damage, including finding what monitor color is easiest on the eyes.  What Is

Uber: Your Mobile Number Is Not Supported? (All the Info)

Uber Mobile Number: Not Supported?

Here’s why Uber says your phone number doesn’t work. Did you get an error message saying your number is not supported? So if you want to know why Uber is giving you the cold shoulder, then you’re in the right place. Let’ get started! Uber Says Your Phone Number Is Not Supported Uber is a great service. If you need a ride, a friendly driver will pick you up. Are you hungry, but your favorite restaurant doesn’t deliver? Don’t worry! Uber will deliver your meal to your front door.  Sometimes though, you might encounter a problem with Uber. Seemingly out-of-the-blue, an error message pops up saying your mobile number isn’t supported. Now, you’re not getting a ride or having your food delivered.  There are a few reasons why an Uber phone number isn’t valid. Some are easy fixes, while others can take a little time to resolve.  Here’s what you need to know if your mobile number isn’t supported by Uber. Why Can’t I Use My Mobile Number for Uber?  Your mobile number is your lifeline. It connects you to friends and family via phone calls and text messages. It’s also what lets you contact Uber. Without a mobile phone number, Uber won’t respond. Instead, you’re stuck without a ride, or worse, without lunch or dinner. So, why can’t you use your mobile number with Uber? Let’s take a look at the possible reasons and see which one applies to your problem. Your Phone Number or Email Address Is Already In Use  Wait a minute! Does this mean someone else is using your information? Chances are, if you get this message from Uber, you’ve already registered for an account. The company does recommend you only have one Uber account for both rides and food delivery. You can get the same error message as a new Uber user. If this happens, it doesn’t mean your identity was stolen. Chances are the

Digital Information Technology: Meaning? (All the Info)

Digital Information Technology: Meaning?

Here’s what digital information technology is: Digital information technology is the study or the utilization of digital systems to store, retrieve and send information. Computers and computer networks are commonly associated with digital information technology, but it encompasses a much wider range of technologies, including servers, TVs, and smartphones. So if you want to learn all about digital information technology, then you’re in the right place. Let’s get started! What About Digital Information Technology? For most people, digital information technology is synonymous with the geeky spectacle-wearing individuals with introverted lifestyles, who spend nearly 99% of their lives in front of a computer. This perception of information technology, commonly referred to as IT, isn’t just flawed, but it also downplays the essence of this sophisticated field.  So, what is information technology and the out of information technology emerged DIGITAL information technology?—yes, there is a difference. If you’re on the hunt for answers to that question, you’ll get more than your bargain because this right here is a breakdown of everything you’ve ever wanted to know about IT. We’ll tell you what information technology is, what are the benefits of information technology, the difference between information technology and digital information technology, and even highlight types of information technology. What Is Information Technology? Information technology is the study or the utilization of systems (particularly computers) to store, retrieve and send information. This is probably not the definition you are used to, but before you come for us, note, there’s more to IT than computers. To you, IT may be the smartphones, tablets and iPads you use today, but information technology has been there long before these devices. In other words, information technology meaning is any form of technology humans use to store and share information. That means pictures carved on rocks (petroglyphs) from the pre-mechanical age, the Pascaline from the mechanical age and morse code from the electromechanical age are all forms of

Techno Functional: Meaning? (Everything to Know)

Techno Functional: Meaning?

Here’s what techno functional means in IT. Techno functional is a mix of technical and functional skills. You’ll learn: What functional means in IT What technical means in IT What techno functional is in IT Lots more Let’s get started! What Means Techno Functional in IT? If you have a hard time telling the difference between technical, functional, and techno-functional roles, you’re not alone!  One way that techno functional consultants are helpful is in bridging the gap between dense programming speak and customers who may not understand all the tech talk.  Let’s face it: not everyone can pursue a computer science degree to understand their tech systems better, but every business wants their technology to be on point. In this day and age, optimized programs that function the way you need them can make or break the company at large.  This is where a techno functional expert can be a crucial asset to the team. To understand what techno functional means and how it’s helpful, you can break it down by reading this article.  Learn what technical consultants and functional consultants do for an IT service and how those roles combine into the techno functional manager. What is a Technical Consultant? In IT, a tech consultant is an expert on all things programming, coding, and implementation. They may have a degree in computer science and past job titles that include systems administrator or programmer.  If you’ve ever had trouble signing into a public library computer, a tech consultant most likely came in to fix the problem. The library probably hired a tech consultant to get their system running in the first place. They may have referred to a tech consultant’s advice to find the best program to keep track of all the library books across all the branches. No matter what type of business you’re looking at, you’d be correct to imagine that many of them depend on technical consultants

Data vs. Information vs. Knowledge vs. Wisdom (All the Info)

Data vs. Information vs. Knowledge vs. Wisdom

Here are the differences between data, information, knowledge, and wisdom: Data are just symbols that represent stimuli or signals Information is data that has meaning and purpose Knowledge is information that has been processed, organized, or structured in some way, or put into practice in some way. Wisdom is integrated knowledge so information that is made super-useful. Let’s get started! What Is the Difference Between Data, Information, Knowledge, and Wisdom? A recent statistic stated that approximately 55.3 million people worldwide would be working in the information and communication technology (ICT) industry full-time in 2020 (pre-coronavirus).  Those 55.3 million people probably understand the terms data, information, knowledge, and wisdom and how they relate to IT. But do you?  What is Information Technology? You might be wondering what Information Technology (IT) even is. In general terms, IT is everything that transmits information. This could include everything from symbols and pictures painted on cave walls to something as simple as a single number.  Fast forward to the invention of computers, and the definition changes a bit. Computer Notes described it best: “IT is the study, design, development, implementation, support or management of computer-based information systems, particularly software applications and computer hardware.”  We were using IT before computers were even invented. However, over time, IT has evolved into digital information technology.  What is Digital Information Technology? Digital information technology is a subset of IT that works with the digital aspect.  What does “digital” mean? The Cambridge dictionary shows two definitions: Digital is the “recording or storing information as a series of the numbers 1 and 0, to show that a signal is present or absent.” (This is called binary data, but you’ll learn more about this later. Digital is the “showing of information in the form of an electronic image.” (This is what computers do by taking binary data and transforming it into information you can see.) Digital IT has become a necessity for

ASCII vs. Unicode vs. UTF-7 vs. UTF-8 vs. UTF-32 vs. ANSI

ASCII vs. Unicode vs. UTF-7 vs. UTF-8 vs. UTF-32 vs. ANSI

Here’s the difference between ASCII, Unicode, UTF-7, UTF-8, UTF-32, and ANSI. Have you ever wondered about this HTML tag: <meta charset=”UTF-8″>? With the help of this article, you will not only make sense of it, but also learn: What ASCII, Unicode, UTF-7, UTF-8, UTF-32, and ANSI are What’s the difference between them Lots more Let’s dive right in! What Is the Difference Between ASCII, Unicode, UTF-7, UTF-8, UTF-32, and ANSI? In your travels, you’ve likely seen at least one of the terms ASCII, Unicode, UTF-7, UTF-8, UTF-16, UTF-32, and ANSI. However, what you may be less familiar with is the actual difference between these seven terms. Navigating the battle of ASCII vs. Unicode vs. UTF-7 vs. UTF-8 vs. UTF-16 vs. UTF-32 vs. ANSI and what they’re best for or used for can be a complicated journey. But, fear not, it’s not impossible to understand. To fully understand these terms, it’s good to start with a “picture this.” Why Are We Even Here? Picture a typewriter. You probably know how one looks. Now, picture a typewriter hammer.  If you’ve never seen a typewriter hammer, it’s a tiny rectangle with a character on the top and the bottom. The hammer often has lowercase and uppercase letters, but sometimes digits and symbols. In the days of typewriters, the characters available to you were what you saw on the keyboard. This number of characters was the number of keys on the keyboard, plus the extra character on top of the type hammer.  You acquired extra characters by literally “shifting” the typebars to change the alignment of where the key punched and get a new character. With computer keyboards, character sets can go beyond what’s mechanically possible of a keyboard. You know that modern computer keyboards accommodate far more than that. But, on early computers, your choice of characters wasn’t much better than a typewriter. The original American standard of characters only had 128 characters, and

ASCII: What Is ASCII and What Is ASCII Used For? (PDF File)

ASCII: What Is ASCII and What Is ASCII Used For?

Here’s what ASCII is and how it’s used: Computers use ASCII, a table of characters. The English alphabet, numbers, and other common symbols are encoded in the ASCII table as binary code. The characters in computers are not stored as characters but as series of binary bits: 1s and 0s. For example, 01000001 means “A” because ASCII says so. If you want to learn all about ASCII, then you are in the right place. Let’s get started! Ever Heard ASCII? American Standard Code for Information Interchange is a method of character encoding used in electronic communication. That’s the short ASCII definition—but there’s way more to say on the topic, as this guide will show you. Since the full name is quite a mouthful, the term is usually abbreviated simply to ASCII. You may also see it referred to as US-ASCII. That’s the term preferred by the Internet Assigned Numbers Authority, IANA. The standard ASCII code serves telecommunications devices, computers, and other technology. Most of the modern character-encoding schemes used today are rooted in ASCII such as UTF-8 and ISO-8859-1. This guide explains what ASCII code is, how it’s used, why it’s important, the history of ASCII, and its purposes today. What Is ASCII? So just what is ASCII code? First, a reminder of what ASCII stands for: American Standard Code for Information Interchange. By the way, ASCII is pronounced “as-key” (just in case you ever have to say it aloud). Now that you’ve got the terminology down, on to your question. ASCII is a standard coding system that assigns numbers, letters, and symbols to the 256 slots in an 8-bit code—you’ll learn further below what 8-bit exactly is. The ASCII decimal is made up of binary, the language used by computers. ASCII corresponds to the English alphabet. The basic ASCII table includes 128 characters specified into 7-bit integers. It’s possible to print 95 of the encoded characters. These include digits like

IT Architecture Review: How To? (Everything to Know)

IT Architecture Review: How To?

Learn how to review IT architecture. You’ll learn: What an IT architecture review is How to do an IT architecture review Lots more So if you want to know all about IT architecture review, then this article is for you. Let’s jump right in! IT Architecture Review 101 An IT architecture review is perhaps the most critical step in keeping your company’s valuable data safe from malicious entities.  Understanding what IT architecture is and how to review your setup is pivotal, not only to keep your business running smoothly but also to remain in compliance as you store your customer’s data. This kind of project involves asking your client several questions and checking every nook and cranny of their IT infrastructure. Knowing what to look for is critical. Knowing how to translate what you’re doing so your client understands is equally essential. Simple Overview of an IT Architecture Review Think of IT Architecture similarly to how you might view your house. Your number one priority might be to keep bad guys out. On top of that, however, you want to ensure you have easy access and a smooth flow as you walk room to room. In other words, the layout needs to make sense. It might help you first to see the difference between what a bad IT architecture setup looks like compared to the best layout. Here’s a fairly entertaining video of two guys laying down the truth about it: Bad IT Architecture Setup When performing a system architecture review, you don’t want to see this kind of setup. The most glaring flaw in its layout will be the absence of a firewall. Internet feeds into the ISP router and then directly into the internal infrastructure. This is bad. Even worse, malicious entities can gain access to your data and operations if they manage to get in through your external web server. With no firewall in place, everything is

SPOF: What Is a Single Point of Failure? (All the Info)

SPOF: What Is a Single Point of Failure?

A single point of failure stops the entire system from working. Do you know how to avoid it? If you want to understand what a single point of failure is and how to recognize one, then this article is for you. Let’s get started! Single Point of Failure 101 A single point of failure (SPOF) in IT causes an entire system to crash. It can expose private data and, in many cases, is costly to repair. If you’ve stumbled upon this article because you’re experiencing an IT-related SPOF, know you’re not alone. In 2015 Amazon’s DynamoDB database malfunctioned for multiple days across the east coast due to a SPOF. Amazon is one of the countless big companies that have had to tackle SPOFs. By the time you finish this article, you’ll have a solid understanding of SPOF triggers, identification, and prevention. SPOF Definition Before we take a closer look at what is a single point of failure, let’s start with the basics. A definition of a single point of failure in IT is when a single component of a system causes the entire system to fail. To help you better grasp this concept, let’s assume you build a tower out of a stack of cards. Now, once your tower is complete, remove a card—any card will do. What happens? The cards fall, right? That’s precisely how SPOFs work; a single point of failure meaning is when one malfunctioning element causes the “tower” (and in the case of IT, the system) to crash. Here’s an interesting fact: the concept of a single point of failure has expanded outside the IT and engineering world. For example, architects may refer to a SPOF if a bridge falls down due to a single component. Examples of a Single Point of Failure Now that we’ve simplified a SPOF using a deck of cards let’s look at some examples of SPOFs in the IT industry. When

ASCII to HTML Conversion Table: Complete (PDF File)

ASCII to HTML Conversion Table: Complete

The complete ASCII to HTML conversion table. This ASCII to HTML table contains all 256 ASCII characters and their HTML counterparts. So if you want to get the complete ASCII to HTML conversion table, then this article is for you. Let’s get started! What Is ASCII in a Nutshell? Have you ever stopped to wonder how your computer works? You may know that computers use binary (combinations of the numbers zero and one) to store information, but how does that translate into the comprehensive text you read on your screen? The answer lies with ASCII. ASCII Explained ASCII stands for the American Standard Code for Information Interchange. Essentially, it is the computer’s own language. Computers have a seven-digit code to represent each letter, number, and punctuation. This code is binary, so it only uses a combination of zeros and ones.  For example, the bits (binary digits) for a capital A are 01000001, while the bits for a lowercase A are 01100001.  If you counted how many digits there are, you might be confused about why there are eight digits instead of seven. Well, each byte in the standard ASCII starts with zero, so the following seven digits are those that differentiate the characters. ASCII has codes for 255 characters. Instead of remembering the byte for each letter, symbol, and number, the founders organized them numerically and assigned them a decimal value. For example, capital A (as mentioned above) is number 65, while the lowercase A is 97.  ASCII Sections To further organize these codes, the founders separated the characters into two sections, which later became three as people developed codes for more specialized characters.  The first ASCII section is a control group that contains unprintable characters. There are a total of 32 characters in this subgroup, labeled from 0 to 31. These unprintable numbers are only to control different external devices, like a keyboard or a printer.  In the next