That's often difficult. A. Use of the computer system itself, if properly designed and installed, is very easy. It can be learned in about 20 to 30 minutes of instruction. B. Use of application programs on the computer may be very easy or more difficult depending on the complexity of the application and the operator's experience in performing the application by other methods. Educational programs are easy to learn.
Accounting is relatively easy but only if the operator is an experienced bookkeeper.
Word Processing is more difficult and proficiency for an experienced typist comes only after one to two weeks of practice.