This month: An update on the 220-801 and 220-802 performance-based questions, how to memorize processor sockets, calculating memory parity, the details of the SCSI interface, using ExpressCards in laptops, and some exam Q&A.
Professor Messer’s A+ Study Group – October 2012 Read More »
You’ve received a new computer, but you’re concerned that the hard drive might not be operating properly. Which of these would be best choice to address this issue?
Make sure we always allocate at least one indirect block pointer Read More »
Which of these utilities would be the best way to confirm that your intranet web server PC was operational?
Which of these steps would be the best choice prior to physically installing a new adapter card into a computer?
You need to clean out the dust that has accumulated on the fans of your desktop computer. Why is it important to use a vacuum cleaner that has been designed for computer systems?
After you select a display device, you then have to determine how to connect it to your computer, and we often have many options to choose from. In this video, you’ll learn about the different video connectors and how to connect them to your display device.
Display Connectors and Cables – CompTIA A+ 220-801: 1.11 Read More »
When you are selecting a display device, there are a number of specifications you should consider. In this video, you’ll learn about refresh rates, native resolution, display filters, and much more.
Display Specifications – CompTIA A+ 220-801: 1.10 Read More »
There are many ways to display the output from your computer. In this video, you’ll learn about CRTs, LCD technology, LED and OLED, plasma displays, and digital projector technology.
An Overview of Display Device Types – CompTIA A+ 220-801: 1.10 Read More »
The most efficient computer will be one that is optimized to perform the task at hand. In this video, you’ll learn the important specifications to consider when selecting a PC for computer design, virtualization, gaming, and much more.
Designing Custom Computer Systems – CompTIA A+ 220-801: 1.9 Read More »
Each PC power supply lists a number of different specifications. In this video, you’ll learn how to interpret power supply specifications and how to avoid a voltage mismatch when connecting your computer to a new power source.
Computer Power Specifications – CompTIA A+ 220-801: 1.8 Read More »
