Many different vendors make Computer Training courses, each in their own format, which means it is possible to find one that suits your preferences. Combined with good study books or pacing, CBT courses are the best way to do your computer training especially for topics that are boring or difficult to learn.
Although computer-based training packages are more expensive than books, they can be purchased selectively here and there to complement your independent training program. If you are searching for business IT consulting in phoenix AZ then there are various online sources where you can get all the information about computer training.
Even though it's less portable, computer-based training programs are also portable if you have your own laptop or if you can install it on a PC at work.
Textbooks are ordinary computer training books that you see in bookstores. They focus on a particular topic and offer a very deep view of the settings and hardware configuration options or software technology provided.
Although not structured for independent study, these books are good sources for delving deeper into topics that are difficult to understand or not fully discussed in other computer training materials.
Because of the nature of how these books are written, they are not "primary" sources to study but instead must be used to supplement other training materials such as self-paced books or CBT.
Even though ordinary textbooks are very deep and thorough, if you use them as a primary resource, you can easily tire yourself out and fill your head with additional information that you don't need to be successful.