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CompTIA A+ is the industry standard when it comes to being recognized as a competent computer support technician. For CompTIA A+ certification training, you need to have basic knowledge of not only installing computer hardware and software, but also to be able to identify, diagnose, and resolve computer-related issues.

This part of our CompTIA A+ online training and prep series focuses on display devices, and how to install them in computers. Here is a step-by-step process:

CompTIA A+ classes online cover different types of display devices and it is essential for you to know the specifics of the display device that you are dealing with. The most common display devices include

LCDs:Liquid Crystal Display (LCD) is the most common type of display device used today. LCDs provide display when a backlight throws light on the liquid crystals which are filtered through polarizing filters. These display devices have faster response times, especially the Twisted Nematic types, as they have higher refresh rates.

LEDs:Light Emitting Diodes (LEDs) is the leading display technology that comes with slightly curved or flat panel displays. Unlike LCDs, they use LEDs for back-lighting purposes and require much lesser power, making them environmentally friendly.

OLEDs:Organic Light Emitting Diodes (OLEDs) don’t utilize the polarization mechanism for showing a picture. Instead, this technology lights up each pixel on the screen, which is based on the voltage it receives and molecules in question. They also consume less power as compared to LCDs.

CRT Monitors:These monitors use the analog signaling method for the delivering picture onto the screen through a fluorescent tube and electrons passing in a cathode ray tube. They are large in size and deliver a low resolution, compromising on the quality of the display.

Once you have identified the display device, the next step is to understand the cables and connectors used in connecting the display device with the computer.

When you unbox a new monitor, you’ll see that there are several parts, cables, and connectors in front of you. The first one would be the display device itself. You will have two types of cables. The first would be the power lead, also called the trade as a kettle lead, mainly because of how it looks. It has 3-pin female plug on one end, which goes into the CPU and the other end goes into the monitor. The purpose of this connector cable is to supply power to the monitor. The other type will be the ‘display’ cable that is attached to the monitor and serves the purpose of carrying display signals from the CPU to the monitor.

Depending on the type of display device you have at hand, there are likely to be three or four options available for you to choose from. It is essential that for CompTIA A+ certification training, you must know about the different types of display connector cables. Here is how you can identify and use them:

DVI:Digital Video Interface (DVI) is one of the most commonly used cables for monitor-computer connection. These cables are easily recognizable because they have white ends. Monitors, with screen size 30 and 27 inches, require special DVI cables known as a Dual-Link DVI cable. Using this cable is easy as all you have to do is plug one end into the computer and the other in the computer by identifying the shapes of the pins and ports.

Display Port:It is one of the latest video connectors and should be the preferred choice for connecting monitor with the computer. The Display Port is generally part of graphics cards that have a full-size port, but there are also others with the Mini-Display Port. It is easy to connect the monitor with your computer with this type of cable, as all you have to do is plug the larger end into the monitor and the other end into your PC. For Apple computers with the Thunderbolt connection, the Mini-Display Port is the right choice.

HDMI:The High-Definition Multimedia Interface (HDMI) cable, which is commonly found on TVs, are not the standard connection cables for monitors, but are sometimes available with laptops. It is likely that your laptop may have HDMI, while the monitor that you want to connect with the laptop has DVI or Display Port. In such a case, you can install adaptors that enable you to connect HDMI with other connections.

VGA: VGA or D-Sib analog connector is among the old types of connectors that you may find with smaller model monitors. They generally comprise of a 15-pin connector, but with display devices packed with enhanced features for clearer, high-res pictures, VGA cables may not be a good option.

Once you have connected your display device with the computer, plug in and turn on the power socket. It might take a few seconds for the monitor to show the display from the computer. If it is not properly connected, you may see a power saver display. Check your connections to ensure that the monitor is properly connected to your computer.

Once the picture comes on your screen, check the resolution, size of the display, colors, brightness, and sharpness of the display. If they are not as per your preferences, you can always change them manually directly from the monitor itself. Your computer should have the right video drivers installed automatically after the monitor setup. If not, you can always download the specific video drivers from the Internet by searching for the make and model of your display device.

Understanding the different types of display devices, their connectors and adaptors, and the installation procedure is the necessary part of CompTIA A+ certification training. Now that you have basic knowledge of displays and their installation procedure, you have higher chances of clearing the CompTIA exam and earning your certification.

As a computer technician, one of your main responsibilities is often to troubleshoot and diagnose hardware and display-related issues. In this course, you"ll explore common hard drive types, replacement techniques, and migration processes. Investigate how to replace common hardware device components such as batteries and random-access memory (RAM). Examine physical privacy and security components such as biometrics and near-field scanner features. Learn how to differentiate between liquid crystal display (LCD) types, including in-plane switching (IPS), twisted nematic (TN), and vertical alignment (VA). Install and configure mobile display components, including Wi-Fi antenna connectors, webcams, microphones, and laptop screen inverters. Lastly, explore the common features of both digitizers and touchscreens. Once you have completed this course, you will be able to confidently troubleshoot hardware and display-related issues and select the appropriate solutions. This course will prepare learners for the CompTIA A+ Core 1 (220-1101) certification exam.

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After completing this CompTIA training, you"ll be prepped for the Core 220-1001 and be better prepared to either get your first IT job or advance into junior systems administrator or senior support roles.

For anyone who leads a technology team, this A+ training can be used for A+ 220-1001 exam prep, on-boarding new IT professionals, or as part of an entry-level training plan.

This CompTIA A+ training moves through the Core 220-1001 exam objectives, and covers topics including:Laptop display: LCD lighting and screen types, LED, OLED, components, touchscreens, digitizers

This A+ training is considered foundational-level CompTIA training, which means it was designed for technical support specialists with 6 to 12 months of experience, but can be used by professionals with no experience at all. This Core 220-1001 course is valuable for new or aspiring IT professionals, experienced technical support specialists looking to validate foundational skills, and even non-technical professionals.

New or aspiring IT professionals. There is a broad consensus among IT experts that CompTIA A+ training is an excellent way to begin a career in information technology. It broadly covers the basics, and gives the aspiring IT specialist an introduction into the concepts and technologies they’ll be dealing with for the rest of their professional life. If there’s any exam you should get first, it’s A+. Even if you don’t want to get certified, anyone new to IT will greatly benefit from CompTIA A+ training.

Experienced IT professionals. Many IT specialists have developed their profession based on the knowledge gained in particular platforms or technologies required for their job. But even after five years, it’s possible to have gaps in IT knowledge and skills that could hinder their careers. Going back for CompTIA A+ training is a good choice for engineers who need to round out their knowledge and refresh their understanding of the hardware and software that they support.

Desktop hardware user training. People who work with technology products and services, whether in management, sales, or customer support, can benefit from a general understanding of information technology. CompTIA A+ training provides a survey of technical terms and solutions that would be helpful for those in tech-related businesses. This CompTIA A+ training offers a greater understanding of what might otherwise seem like a mystery.

- So this, my friends, what I have in front of me, is an actual LCD monitor, I just took off the case, because in this episode I want to talk about some of the parts that are really, really important to us techs on the inside of LCD monitors. So let me go ahead and let"s start with probably the most important part there is right here. And this is a big guy right here. This is the actual LCD screen itself. Now, if we take a look, let me zoom in on this, there are millions of tiny little wires coming into this LCD screen with a few controller functions right here. So, this incredibly fragile piece contains gazillions, over a million, of these little picture elements in here. Now, because there"s no power, theoretically, you can"t see through an LCD when there"s no power, however, no LCD is perfect, so you can probably see me a little bit, I can see the camera a little bit. Alright, so this is the working part of any monitor. So let me just set this off to the side for a moment, because there"s more. So let"s look down here at this very bright, very white piece right here. What you"re actually looking at, they"re a little bit taped down so it"s tricky to see, but underneath here, and also way down at the bottom, are these big, long fluorescent tubes. They"re CCFLs. All of this white is basically a reflector, because we want the light to be as even as possible across the monitor so you don"t have dark and bright spots on the monitor itself. So, those are where the CCFLs live. Now, what"s interesting, if I can do this without losing a finger, is underneath here. Eh, you know what, let"s flip the whole thing over first. Here"s the power connection, this is where the monitor gets its electricity, and over here are inputs that are going to come from video cards from my system itself. Okay, now let"s go back in this guy a little bit. So, first of all, here"s the power over here, so what you have in here is a standard AC to DC power supply just like you"d see at a desktop system, although much, much smaller. This is designed to give us the DC power that our circuitry needs to run. However, there"s a problem, and the problem is, especially with the old school CCFLs, these CCFLs are fluorescent lights, and fluorescent lights need AC power. So what you would do is you would take your DC power and then have to convert it back into AC through what were known as inverters. Now, with these LED panels we see today, we don"t see the inverters anymore, you"re only going to have inverters if you have CCFLs. Okay, now coming back over here, this is the actual inputs from our video card itself, and these are different types of technologies, of connectors, we cover those in other episodes, we have some logic circuitry here, and this guy right here is the primary connection to the LCD panel itself. So, when you"re working with an LCD panel, couple things I want to make sure you understand. Number one, you"re going to have a panel of course, number two, you"re going to have a separate backlight unit. If you"re using CCFLs, and there"s plenty of monitors that still do, you are going to have inverters that take the DC power that was just converted from AC, yeah it was, and turns it back into AC to run the CCFLs. On top of that, we"re going to have our connectors, our inputs from our data connection, and of course, a big power connection as well. (jazzy guitar music)

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The latest, 220-1101 (Core 1) and 220-1102 (Core 2), became effective in April 2022, and the old series, 220-1001 and 220-1002 retired on Oct. 20, 2022. The new version reflects current best practices and technologies for frontline technical support roles better prepared to troubleshoot and problem-solve a wider variety of security issues, ranging from networking and operating systems to mobile devices.

Unlike other certifications that require passing one exam,CompTIA A+consists of two parts (Core 1 and Core 2). Note that if you have already passed the 220-1001 exam or are studying for it currently, you will want to take and pass 220-1002 before October 20 because CompTIA doesn’t allow you to mix exams from two different series.

As youprepare for your exam, ensure to review the exam objectives and study guides related to the version you are testing for. You’ll be expected to have a good grasp on the concepts listed in the domains and be able to answer a combination of multiple-choice questions (single and multiple responses), drag and drops and performance-based questions. CompTIA’s A+ Study Guide, self-study books or specificA+ training coursesto fit your particular learning style and schedule make it possible to start learning right away.

While the previous series placed a large emphasis on the areas of security, cloud, networking and device connectivity, as well as on hardware, mobile and Windows, the new CompTIA A+ version focuses on the technologies and skills IT pros need to support a hybrid workforce, including increased reliance on software as a service (SaaS) applications for remote work to the changes from cloud virtualization and internet of things (IoT) device security to data management and scripting. There is also more on remote troubleshooting to correct common software, hardware or connectivity problems.

As you can see, the areas covered by the domains have not changed. What has changed is the percentage assigned to each topic to better reflect what is important in today’s workplaces.

Digital transformation is one of the hottest topics for organizations, and relying on trained support professionals who can ensure a smoother implementation of newer, more complex technology and the security of assets is paramount. Also, as the workforce shifts towards a more hybrid approach with more opportunities to work remotely, problem-solving abilities and customer service are some of the most sought-out skills, together with knowledge of virtualization, cloud and scripting.

The 220-1101 exam covers the knowledge and skills required to support various IT infrastructures, from implementing Client Virtualization and Cloud Computing to Supporting and Troubleshooting Mobile Devices and Network Connections. You will learn how to confidently diagnose and correct common hardware or connectivity problems.

In line with the tasks that professionals are faced with today’s companies and organizations, this test covers more in-depth laptop security (with biometrics and, especially, face and fingerprint recognition), the migration of data to SSD drives and the newest display technology. Mobile connectivity is also covered with the 5G and more attention to mobile device synchronization.

The Networking domain will include questions on Wi-Fi 6 and more emphasis on the configuration and maintenance of small office/home office (SOHO) networks. Hardware will include newer technology like Cat 6a, Double Data Rate 5 (DDR5) and 3-D printers.

The 220-1102 exam covers the knowledge and skills required to install and configure operating systems; use common methods for securing mobile and embedded devices; apply best practices for SOHO wireless and wired networks; execute application installation and configuration concepts; carry out software troubleshooting; act upon standard operating procedures. In essence, you will know how to set up, configure, manage, and troubleshoot various operating systems, configure mobile and desktop devices and applications, and offer support when necessary.

A large focus of the first domain will be on Windows 10 and its features and tools and Linux and macOS. The Security and Software Troubleshooting Domains will build upon the old version, simply adding a reference to the newest issues and practices, including mobile and embedded devices security and user education to prevent social engineering and malware exposure.

Reimaging and restoring devices will also be within the topics, and troubleshooting mobile OS and application security issues. The increased focus on some of these topics directly consequences the move toward a hybrid/mobile workforce. It is also evident in the Operational Procedures domain, focusing on ticketing systems, documenting actions and appropriate professional behavior.

As with previousA+ Core 1 & Core 2 exam objectives, CompTIA’s certification considers how the IT profession is evolving. Since even entry-level technicians need to adapt to more complex environments, they need to understand operational procedures in various scenarios. Some of the Core 1 and 2 series changes focus on aspects like the importance of appropriate documentation and policies, as well as basic change-management best practices. You will learn to follow and embed best practices for environmental protection, safety, professionalism, and communication.

CompTIA reports that “according to Burning Glass Technologies Labor Insights, CompTIA A+ is the number-one cited certification forIT support jobs, with nearly 1 in 10 ads including it.”

As a vendor-neutral and entry-level credential, it covers many IT skills, from hardware and networking to operating systems and security. With the launch of a new exam version, the refreshed A+ Core Series has expanded coverage of mobile and cloud computing and virtualization services, addressed enhanced security and advanced software troubleshooting procedures across all operating systems, including Windows 10, macOS, Android and Linux OS.

So, whether you’re new to the profession or have a couple of years under your belt and want to expand your IT knowledge, consider theA+ certificationto go far beyond basic computer set-up, repair and troubleshooting skills to prove much needed problem-solving skills in support of today’s core technologies from security to networking to virtualization and more.

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