The following is the equation for the above steps:

The following example shows how this formula works. Assume that you have just completed the exercise in figure 2-8, view B. Further, assume that you have completed the entire exercise within the 5-minute time period allowed. This gives a total of 630 strokes typed. When checking over what has been typed, you find 4 errors. Your words per minute are figured as follows:

COMPUTER FAMILIARIZATION

Throughout the Navy, computers are being used more and more to simplify the storage and management of statistical data. The computer uses modern technology to simplify the handling of typed words and ideas. Computer power makes typing faster, easier, and more efficient.

The computer will help you do your day-to- day jobs quickly and easily. This system records your typing; therefore, you only need to re-enter changes and corrections. This is much better than using whiteout for a minor error or retyping an entire letter because you inadvertently left out a sentence or paragraph.

The computer is designed to look and respond like a typewriter. The things you will learn about your computer will grow out of what you already know about typing. You know how paper advances through a typewriter; the screen on the computer is your paper. The keyboard of the computer is very similiar to that of a typewriter, with the addition of special keys to operate the various computer commands. Since many commands have purchased their own computer equipment, it is impossible to describe the different makes and models in this TRAMAN. Most manufacturers of computer equipment include a self-paced, easy to understand instruction booklet or manual on their particular computer. Take time to read the instructions before attempting your first letter. In a short time, you will be able to successfully operate your computer and become familiar with the various word processing programs available to you.

CALCULATING MACHINES The AZ also uses calculating machines in performing various tasks. They are especially useful when preparing certain reports and in logbook maintenance. There are many types of calculating machines used in aircraft maintenance activities; therefore, no standard instructions on their operation are presented here.

The manufacturer's manual for each machine explains what it can do and how to operate it. These manuals, with the help of experienced AZs in your activity, should help you to develop proficiency in operating these machines.

Some calculating machines furnish a printed record (usually on tape) of each item added. This printed record may be used to check possible errors in copying numbers. Tapes should be attached to reports when forwarded for signature. This provides a simple method of checking the accuracy of the report by the designated signer.

Rotary Calculator

Some of the standard calculators used in the Navy are the Marchant (SCM Corporation), the Friden (Singer), and the Monroe (Litton Industries). The same principles apply for operating all rotary calculators, but the keyboard arrangements and steps involved in operation vary slightly, depending on the manufacturer and the particular model. You will have to learn the details about your machine from an experienced operator and by studying the manufacturer's instruction booklet.

Electronic Solid-State Calculator

The electronic calculator is a miniature electronic computer. All major office machine manufacturers now have models on the market. Its operating keys are similar to those of rotary calculators. However, it has additional keys for mathematical signs and for the storage and recall of numbers. Your computations and answers are projected by a cathode ray onto a small, TV-like screen located at the top of the machine. This calculator has a number of advantages over rotary calculators; it is easier to operate, quicker, quieter,