DF099 How Computers Work and Store Data

This training is intended for U.S. Criminal Justice Practitioners. Please register using your agency-issued email.

This course was funded by the Bureau of Justice Assistance.

The first module of this course covers fundamentals such as recognizing computer components and their functions, accessing computer firmware, and the startup and shutdown processes. The second module covers how a hard disk drive works, how data is converted into digital information, how to calculate the storage capacity of a device, partitioning and how that is used for storage, and how a solid state hard drive functions.

This course has been certified by IADLEST as part of the National Certification Program.

Students who complete this course and pass the post test are eligible for 0.250 points toward the 3CE certification.

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  Length Class Part/Link Status
15 minPre-Test

After completing this module, proceed to Part 1: How Computers Work.

60 minPart 1: How Computers Work

After completing this module, proceed to Part 2: How Computers Store Data.

90 minPart 2: How Computers Store Data

After completing this module, proceed to the post-test.

15 minPost-Test

Students who score 80% or higher have passed the post-test and will be awarded a certificate of completion.

5 minEvaluation

Student feedback is an important part of the training cycle. Please complete the following evaluation to assist us in determining the effectiveness of our training and to obtain 100% completion for this course.

 Print Certificate of Completion

   To print a certificate, you must score 80% or higher on the post-test and be logged in.


For technical issues, visit our User Support page.

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