Problems due to faulty RAM can be difficult to diagnose. If a system’s RAM has gone bad the user can experience program crashes, spontaneous reboots, sudden system freezes, BSODs (Blue Screens of Death), corrupt data, and more. The problem is those symptoms could also be caused by a bad CPU. Or a bad motherboard. Or [...]

CompTIA’s A+ test objectives include Domain 5.0: Security, which among other things, requires A+ certification candidates to know about “Data wiping / hard drive destruction / hard drive recycling”. If an A+ certification student is working in the industry it’s likely that their organization has some kind of hard drive disposal policy, usually involving the [...]

Though CompTIA updates their A+ objectives every few years sometimes the information you find in books and websites that are supposed to help with A+ certification is surprisingly out of date. Most A+ certification material I see, especially online, tends to perpetuate old stereotypes about inkjets and laser printers. This material is often carried forward from old [...]

During a recent class discussion on RAID, a student recommended I look into Drobo, an external storage unit that promises some real advantages over standard RAID arrays. The basic Drobo unit plugs into either a USB or Firewire connection on your computer and holds up to four hard drives, which you can supply, or which [...]

All A+ certification books describe the difference between regular cable and plenum cable in a fire, but would you like to see the difference? L-com sells cable and put together a series of videos so that customers can see what they’re paying for when they spend extra for plenum rated cable. Fortunately their videos are [...]