Join Mike Meyers for an in-depth discussion in this video Decimal and binary prefixes, part of CompTIA A+ (220-901) Cert Prep: 2 Core Hardware.
- In the IT world,…we use a lot of decimal prefixes.…For example, when I'm talking about my CPU,…I talk about a 3.2 Ghz CPU.…If I'm talking about the capacity…of my hard drive,…we use the word terabytes…to talk about its capacity.…So what I wanna do in this episode…is discuss what these terms mean…and talk about a little bit of an issue.…So let's start off…with talking about decimal prefixes.…We're gonna start with a kilo.…A kilo, shown with the letter K,…is equal to 1,000.…
A mega, shown with the letter M,…is equal to a million,…that's 1,000 Ks.…A giga, we use the letter G,…is a billion, and that's 1,000 Ms.…A tera, with the T,…that's a trillion.…That's 1,000 gigas.…Yep, it keeps going.…A peta, with the letter P,…that's a quadrillion.…Whoa!…And that is 1,000 teras.…And the last one that I'm interested in…is an exa which we show with the letter E.…
That is one quintillion,…and that is one thousand petas.…Now, we've been using these decimal equivalents…for a long time in the computing world,…but I gotta tell you something.…
The CompTIA A+ 220-901 exam is comprised of six key parts. The second, core hardware, is covered by this course. Instructor Mike Meyers explains the essential components and functions of motherboards, power supplies, and hard drives. He also shows you how to work with chipsets, troubleshoot electrical issues, implement RAID, and how to determine which hard drive technology to use depending on the circumstance.
Note: The six courses designed for the CompTIA A+ (220-901) exam preparation include core processing, core hardware, peripherals and building a PC, displays and printers, networking, and laptops and mobile devices.
We are a CompTIA Content Publishing Partner. As such, we are able to offer CompTIA exam vouchers at a 10% discount. For more information on how to obtain this discount, please download these PDF instructions.
- Working with motherboards, chipsets, and expansions
- Choosing a power supply
- Evaluating hard drive technologies
- Implementing RAID
- Troubleshooting issues