Model: 14B General: Name: Business Calculator Code-Name: Midas Family: Pioneer Logic: algebraic, no precedence Features: business Firsts: "vertical" menus, COMPUTE key Introduction: Date: 1988-10-31 Price: $79.95 Discontinuation: Date: <1993 Price: $79.95 Production-Run: ? Display: Type: LCD, alphanumeric w/bit-mapped characters Size: 1 line x 12 chars Number-Formats: sign, 10 mantissa, ., exp sign, 2 exp Annunciators: v down arrow active ^ up arrow active ---^ shift key pressed BEGIN begin mode INPUT used input to store data V soft key active <--- more characters to the left V soft key active V soft key active ! attention V soft key active battery battery low V soft key active V soft key active Data: User-Visible: Smallest: 1E-499 Largest: 9.99999999999E499 Signif.-Digits: 12 Internal: Smallest: 1E-49999 Largest: 9.99999999999999E49999 Signif.-Digits: 15 Data-Types-and-Sizes: real, 8 bytes Memory: Named-Registers: 2 line history, line 2 is LAST, N, I/YR, PV, PMT, FV, 0-3, C0-C21, N1-N21, shared-- CST PRC MAR OLD NEW %CHG TOTAL PART %TOTAL NOM% EFF% P Flags: none Register-Usage: C0-C21 and N1-N21 are shared with statistics Numbered-Registers: 4 Program-Steps: none Program-Editing: none Program-Display: none User-RAM-Bytes: 456 Total-RAM-Bytes: 512 ROM-Bytes: 16K Machine-State: prefix key state pending operations (9 levels) display contrast display mode radix mark registers and history begin/end 21 cash flow groups, 999 entries each File-Types: none Physical: Technology-Used: CMOS Processor: ? Chip-Count: ? Power-Source: 3 alkaline (Panasonic LR44) or mercury (Panasonic NR44 or MR44) button cells Continuous-Memory: yes Expansion-Ports: none I/O-Ports: none Clock: none Length: ? Width: ? Height: ? Weight: ? Temperature-Range: Operating: 0 to 45 deg C Charging: - Storage: -20 to 65 deg C Keyboard: Switches: none Shift-Keys: gold, gold, above User-Defined-Keys: none Key-Arrangement:: ** ** ** ** ** ** ** ** ** ** ** ** ***** ** ** ** ** * ** ** ** ** ** * ** ** ** ** ** * ** ** ** ** ** * ** ** ** ** ** Key-Labels-Base-Keyboard:: N I/YR PV PMT FV \GS+ STO RCL CST PRC MAR STAT INPUT +/- ( ) <- % 7 8 9 \:- v 4 5 6 x  1 2 3 - C 0 . = + (The C key has a lower label of ON.) Key-Labels-gold-gold-above:: xP/YR  RND P/YR AMORT \GS- NPV IRR% OLD-----NEW-----%CHG FRCST COMPUTE E SWAP DISP CLEAR MATH NOM%----EFF%----P 1/x x ^ TOTAL---PART----%TOTAL y  ROI% B.EVEN INVEN \v/x 2 OFF BEG/ENG SHOW LAST x Programmable-Operations:: none Non-Programmable-Operations:: shift  clear shift % percent of %CHG store / compute percent change %TOTAL store / compute percent of total ( start nesting ) end nesting + addition +/- change sign - subtraction 0-9, . enter digit or decimal point 1/x reciprocal <- erase character or number; cancel one level of menus = complete the operation AMORT calculates amortization schedule B.EVEN breakeven analysis C clear calculator line C + + adjust display contrast C + - adjust display contrast C + FV factory test, stop by any key C + N + \GS+ clear continuous memory C + PMT initiate one self-test C + PV reset calculator CLEAR bring up the CLEAR menu COMPUTE computes IRR%, NPV or one of the values in the applications (ROI, B.EVEN, or INVEN) CST store / compute cost DISP bring up the DISP menu E start an exponent EFF% store / compute effective rate FRCST bring up the FRCST menu FV store / compute future value I/YR store / compute annual interest INPUT use number in line 1 as response INVEN do inventory analysis IRR% enter cash flow list and compute IRR LAST use number in history line 2 MAR store / compute margin MATH brings up the MATH menu N store / compute N NEW store / compute new amount NOM% store / compute nominal percent NPV enter cash flow list and compute NPV OFF off OLD store / compute old amount ON on P store periods per year P/YR store number of payments per year PART store / compute part of total PMT store / compute payment PRC store / compute price PV store / compute present value RCL 0-3 recall from register RCL name recall from register RND round number to display ROI% allow you to do return on investment analysis SHOW show full precision STAT bring up the STAT menu STO +,-,x,\:- 0-3 storage arithmetic STO 0-3 store in register STO name store in menu variable SWAP swap displayed number with previous number TOTAL store / compute total amount v move to next item x multiplication xP/YR multiply by P/YR and store in N x^2 square y^x power \:- division \GS+ add to statistics \GS- subtract from statistics \v/x square root ^ move to previous item Menus:: BEG/END:BEGIN END CLEAR: TVM RG ALL \GS DISP: FIX ALL . , FIX 0-9, .0, .1 FRCST: x^ y^ x MATH: e LN n! STAT: \GS x-,y- S FIT \GS: n x y x^2 y^2 xy x-,y-: x- y- x-w s: sx sy FIT: B L EX LOG P FIT: x^ y^ r m b Bugs/ROM-Versions:: none Notes:: The applications are "vertical" menus. Each of the variables is named, and you can use the ^ and v keys to move among the variables and set/review them in any order. You can solve for any variable by moving to it and pressing COMPUTE. ROI application REV revenue PROF% profit percentage INVS investment ROI% return on investment B.EVEN application #SLD number sold PRC price FIXC fixed costs VARC variable costs PROF profit percent INVEN application BEGI beginning inventory ENDI ending inventory SOLD cost of goods sold IRR and NPV calculations work by pressing the key, entering/editing the list of cash flows, and pressing COMPUTE. Statistics computes summaries each possible way (linear, log, exp, power). Thus, you can do different curve fitting, yet are not doing list-based statistics. This technique was first used in the -71B. There was a "50th Anniversary" version made of this machine and the 32S. (The anniversary was of HP.) The changes consisted of a modified bezel with insert and an extra logo imprinted on the case. The 14B version was oversubscribed (i.e., more people wanted one than were avaiable) and the 32S version had extras (there were some that no one wanted (then!)). The following may work: You can use INPUT and SWAP to keep two complete calculations going at once. Do the first one, press INPUT, then do your second one. Do SWAP to switch back and forth. Make sure that you have completed any pending operations first. Pressing C or turning the calculator off and on clears both.
I am Craig A. Finseth.
Last modified Saturday, 2012-02-25T17:29:21-06:00.