Your Guide to Today's Technology http://www.professormesser.com Fri, 16 May 2008 08:19:42 +0100 FeedCreator 1.7.2 http://www.professormesser.com/images/M_images/joomla_rss.png http://www.professormesser.com Your Guide to Today's Technology http://www.professormesser.com/content/view/80/30/ The memory installation process is relatively simple, but what options do you have if your installed memory isn’t working as expected? In this module, we’ll show you how some simple physical troubleshooting and software-based memory diagnostics can help get your system up and running quickly. Video Tutorials - CompTIA A+ Certification Wed, 07 May 2008 20:46:42 +0100 http://www.professormesser.com/content/view/79/30/ The process of installing or upgrading a computer system’s memory is easy to accomplish if you have the right procedures in place. In this video, we’ll walk you through every step of memory installation. You’ll learn how to select the correct memory modules, how to physically install the new memory, and how you can check your work after the installation is complete. Video Tutorials - CompTIA A+ Certification Wed, 07 May 2008 20:38:15 +0100 http://www.professormesser.com/content/view/78/30/ The CompTIA A+ certification requires extensive knowledge of memory packages, pin counts, and memory functions. In this module, we’ll step through each memory package and describe the progression of the different memory types through the years. We’ll discuss packages such as DIMM, RIMM, SODIMM, and MicroDIMM, and we’ll also detail memory types such as SRAM, SDRAM, RDRAM, DDR, and DDR2. Video Tutorials - CompTIA A+ Certification Tue, 06 May 2008 07:54:56 +0100 http://www.professormesser.com/content/view/77/30/ We know that memory is one of the most critical resources in our computer, but how does it really work? In this video, we’ll look at the fundamentals of memory operation and learn about memory transfer rates, throughput speeds, latency, read-only memory, and the differences between single-sided and double-sided memory. Video Tutorials - CompTIA A+ Certification Tue, 06 May 2008 07:51:56 +0100 http://www.professormesser.com/content/view/76/30/ It’s one of the worst sounds in the world – a hard drive mechanism that’s gone bad. It’s even worse when it’s the sound of YOUR hard drive that decided to up and die. Unfortunately, one of my hard drives recently decided to bite the dust, but I thought I’d use the untimely demise of my hardware to provide you with some insight on what you (or your clients) might expect to hear when a hard drive starts going south. During the troubleshooting process, I’ll sometimes ask if the problematic hard drive is making a “clicking” noise. If you aren’t exactly sure what the clicking noise of a bad hard drive sounds like, this audio clip is for you. I took apart my hard drive enclosure, put a microphone into the unit, and powered it up. The sound you hear will be of the hard drive spinning up, the hard drive mechanics “clicking,” and the hard drive spinning down. It retries the process before powering down for good. For those interested in the details, this was an external USB 2.0 Western Digital 500GB MyBook. After dismantling the enclosure, I found a 3.5” Western Digital Caviar RE2 WD5000YS drive. This was a SATA drive that was powered through an external power source and connected to my system through a USB 2.0 port. It was manufactured on August 6, 2006. All of my family photos for the last five years were stored on this hard drive. Fortunately, I had a backup – do you? Professor Messer Class Notes - Troubleshooting Fri, 25 Apr 2008 22:01:49 +0100 http://www.professormesser.com/content/view/44/30/ This is an overview video for Professor Messer's Free CompTIA A+ Certification Training Course, the industry's first free video-based training for the CompTIA A+ certification. In this introductory module, you'll learn about Professor Messer, the format of the training course, and our goal for building a community of A+ certified professionals. Video Tutorials - CompTIA A+ Certification Sun, 16 Mar 2008 16:53:22 +0100 http://www.professormesser.com/content/view/45/30/ What is the CompTIA A+ certification? In this module, you’ll learn about the history of CompTIA, the advantages of an A+ certification, the exam categories, and best practices to use when taking the CompTIA A+ certification exam at your testing center. Video Tutorials - CompTIA A+ Certification Sun, 16 Mar 2008 18:14:20 +0100