A study guide for the A+ Core exam covers basic electronics, memory and storage systems, bus structures, serial and parallel ports, peripherals, hardware installation, upgrading and maintaining CPUs, and the Windows and DOS operating systems
I did get my A+ cert after reading this book. It was very helpful and I have had good luck with the dummies books. The information is well organized and easy to take in. I would recommend finding some good transenders on the Internet, to complement the book, before taking the test.