CLASS III includes cards or card types 8, 

 9, 10, 11, 12, and 13. These are used only 

 as needed to enter cost, income, product, 

 and price information. 



CLASS IV includes cards 14 and 15, which 

 are problem termination cards. Card 14 is 

 always required. Card 15 is required when 

 the problem of another user is to be entered. 



CONTROL CARD FUNCTIONS 

 Class I Cards 



(Required with the first problem in each 

 series of problems submitted) 



Card 1. Name of National Forest or organi- 

 zation. — This card, with cards 2 and 3, puts 

 the name of the user and his organization into 

 the computer so that they can be printed on 

 the output to facilitate identification and 

 handling. 



Card 2. Name of unit or branch. 



Card 3. Name of user. 



Class II Cards 



(Required for every problem) 



Card 4. Number and/or name of problem 

 and number of descriptive cards. — This card 

 puts the problem identification into the com- 

 puter for use as a label on output information. 



Card 5. This card type is used to put into 

 the computer additional descriptive infor- 

 mation that the user wants to have on the 

 output. — For example, if two or more alter- 

 natives are being compared, the user may wish 

 to include a description of each alternative on 

 the computer output. 



Card 6. Interest rates and program and out- 

 put options. — This program utilizes the iter- 

 ation procedure of calculation; that is, the 

 user specifies the minimum and maximum 

 interest rates he will consider, and the incre- 

 ment of change the computer is to use. Also 

 the program permits three options: 



1. A general option for computing internal 

 rate of return and present worth at speci- 

 fied interest rates. 



2. An option to evaluate timber stand re- 

 placement opportunities. 



3. An option to evaluate timber stand im- 

 provement opportunities. 



The above are specified on the 6th card. 



Card 7. General problem control card. — 



This card describes the details of the problem 

 to the computer. Nine types of information 

 are included on this card: 



1 . The number of alternatives or plans to be 

 evaluated. The program will handle up 

 to six alternatives or plans at once, pro- 

 vided they utilize the same program and 

 output options (specified on card 6). This 

 information type tells the computer how 

 many alternatives or plans are included 

 in the problem. 



2. Numbers identifying each alternative or 

 plan to be evaluated. 



3. The time period (rotation) specified for 

 each plan. 



4. If product evaluations are included, the 

 maximum number of products (0-3) in 

 any alternative or plan for which dollar 

 yield must be figured. 



5. If periodic costs and incomes are in- 

 cluded, the maximum number and the 

 number in each plan or alternative. 



6. If annual costs are included, the maxi- 

 mum number and the number in each 

 plan or alternative. 



7. The type of terminal calculation the com- 

 puter is to use for each plan or alternative 

 (that is, a perpetual series or a terminat- 

 ing series). 



8. More specific instructions if the problem 

 involves the evaluation of stand replace- 

 ment or a comparison of TSI programs. 



9. The number of sets of product prices, 

 if product evaluations are included in the 

 problem, so that the problem can be 

 repeated under all the price assumptions 

 specified. 



Class III Cards 



(Used only as needed) 



Card 8. Periodic costs and incomes. — This 

 card type is used whenever periodic costs and 



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