Manual / Guide · c. 1971

Toshiba BC-0801B Instruction Manual

The 10-page manual of the Toshiba BC-0801B desk calculator.

Author: Toshiba
Year: c. 1971
Type: Manual / Guide
Credit: Scan: wass.net manuals collection.

TOSHIBA ELECTRONIC DESK-TOP | CALCULATOR | woe. BC-O8S01EB ! OPERATING INSTRUCTION : . . = ite 1 "1 J . wes pone sie . me co Te rojo. i nate Ae a 5 es uate Fcc ite: Nora pitt ea nerd ecnia Sun. ee ER pmo (®) Printed in Japan : . ‘ : .s SHIA | RC-0RC16 at » I 1. . - re - aa Pe Lo I ire 3 . oe . _ a 5 LT EAT J _ a i “an * . tm . CONTENTS Explantion of keys switches’ and indication lamps .-...-... 2 Method of operation and precautions -:-------:::e:eeeee peter sees 4 Caiculation examples : ~ Addition and Subtraction ------+----+ ss eeeeeseeeeee eee eee eee eee 5 , Maltiplication :+<+-+-00----------ee eee centers entree ences weer eeaueee 6 . Bivision a a ee eae 7 . Successive maltiplication and Successive division ------- 8 Calculation with a Comstant --csccrerree eee eee cet eeseceeesaee eens 9 . successive maltiplication and division with a contsani-:- 10 7. Raising to A DOWET crtctt cece s series neater ees cee e esac ane enn ares 11 Applied Calculation Ll. Interest calculation :s::-+--:--ceee sc ester tere cere r reer reer eeee 1? 7. Amount of annuity OUR en eee ee eee eee eee 13 ono & fy KS - — r ate A . . F -_— —= ge ke = ee wae -.E 1s . . 2 a re aly ee 2 Discount calculations ccc ce cece cree ecee cence cece eeseeaectpecgs -t4 F Handling of the calculator and charger ----:ectets--eceeeeecereeeenes 15 Precautions tn handling the battery -----++-sssereee een een wane eccnsare i6 : : How to use your TOSHIBA BC-O&O |B --- ss rire etr reeset eet eeeeees 1? Ses peta ah ceti ne ges te bliin tsine a ila uc Set ee en eee specifications TePTOCTOTT Tere ee ee ee ee eee ee l 7 EXPLANATION OF KEYS, SWITCHES AND (0) (9) NUMERICAL KEYS ©) INDICATION LAMPS DECIMAL POINT KEY This key is to be depressed at a required positron. if the figure is like GO. tts: , then one dees not need to depress (i key but begin just from depressing i+: key and then other numericat keys. CLEAR INDICATOR KEY This key is depressed for claaring a antered figure by error. Note: When this key is depressed an indication of in- correct number entry “O° is appeared after depres- sing function key . --, ™ or -+, however, the results of calculation carried in accordace with the data directly concerned with tncorrect number entry are stored in the caiculation register, lt ¢s therefore advisable to perform recaiculatians by depressing key or by modifying the calcu- lation me thad. CLEAR KEY This key is used for clearing all figures registered. ADDITION AND EQUAL KEY This key és used for obtaining the results of addition, rultiplication and division. SUBTRACTION AND NEGATIVE EQUAL KEY This Key is used for obtaining the results of subirac- tion, multiplication and division. Press also for setting a negative figure, LO . ----Minus tamo SS ee MULTIPLICATION KEY Tnis key is used for multiplication as weil as for chec. king of intermediate results in successive multiplication. DIVISISION KEY This key is used for diviston. This key is also for the checking of intermediate results in successive division. POWER AND DECIMAL SETTING SWITCH This switch serves as both the power source switch and the dectmal setting switch. Therefore, when the switch is turned off {OFF side), the calculator is aisconnected from the power supply from the battery. Designation of decimal point: There are three decimal points (F, O and 2} to be designated, F : [me resuit of calculation will ®e obtained as floating decimal soint. Gor 2: The result of calculation will be obtained as fixed decimal poitt. CONSTANT SWITCH this switeh should be set for multiplication, division Br power calculation with a constant. INDICAT! ON LAMPS Overflow lamp METHOD OF OPERATION AND PRECAUTIONS Ll. When the power and decimal setting switch ig set either ta F, 0 or 2, the power switch is turn on simultaneously when the deci- Mat Pont iS Set. . Prior to caitcujation, press @ key and set the constant switch to the desired position. . irrespective of the decimal setting, entering figure is possible. Further, when the power and decimal setting switch iS set to F, the decimal point of result ts indicated as being a fioating decimal while it is indicated at the specified position of decimal when this switch is set either to 0 or 2. Provided, however, that, the decimal goint af intermediate result iS indicated as being a floating decimal. . When the integer numbers calculated exceed § digits, the machine will be overflowed overflow, and all keys, exceot for @ key, are locked. In order to proceed with further catculatians, clear the calculation register by depressing €) key. . When entered figure exceeds & digit, the machine will be overfiowed. Then the numerical keys are locked, and the number of entered figure after the 9th digit is ignored. In this case, the ather keys are not locked: thereifcre, it is pos- Sibla to proceed with calculations. However, it is better to reenter the number by depressing the (CT) Key. In case where the specified decimal point position is set either to O or 2, the caiculator indicates al) the calicusation results after autamatically performing @ round-off calculation. Calculation examples {. ADDITION AND SUBTRACTION he CULATION eye CALCULATION PRE SETTING DISPLAY AMPLE SWITCH SEQUENCE | S a. 4 i273 | Addition a. a §23+.456=579 an he ie (® 574. ©) #3 Subtraction 5 #89 729 b 789 — 123=666 = 123 os, 666. (o) a Subtraction 456 Ce [negative answer) G #; 456 456—- /89— — 333 RQ ome, : 334 Round off addition iC) 9.0000 i273, 455d 4-456, i245 i273, 4554 Go (+ £23.46)(+456.!3) 2 e 123. 46 =579. 5864 456. i25 (+5 79.59} as 579. 59 NOTE : Always press the © key before starting addition and subtraction. 2. MULTIPLICATION Max. digits of product—8 digits Multiplicand 1 Multiplier —Max. 16 digits DECIMAL ” : EX. OHINT. CALCULATION CALCULATION DISPLAY PRESET TING AMPLE SWITCH | SEQUENCE i?. 34 , . 12.34% 4.567 & ar 12, 34 , = 56, 35678 4. 567 oR 56. 35678 | Round off iz. 34 by l?, 34% 4.567 , (xe 12, 34 =56& 35678 4.567 (+56. 36} ® 56. 36 oF ol minus calcujatron |? . C (—}2)*34= r os o. 12. — 408 es > |? 34 (B S Ab8 | WH Pier ied | | d , : C2 PEUVERIVE. = $2345678. 76543?! PL ELEGETS ) es | 7345678. Seenene OY) PGLELVITG. a LITLE 9 ‘Overflow fame = 12345678765432 | 3 lights up: (S gE t234567.8 NOTE: 1.The calculator design permits indication of the caicul- ation resuits of the first & digits, Accordingly, in the case of example d, the calculation results take priority in indication:. therefore, the decimal paint is not indicated at the specified position put is indicated at the position after the 8th digit. “.in the case of overflow, the calculator is so designed that the first & digits may be indicated. At this time, the decimal point in the caiculated digits is tacated at a position equivalent to 108 (example e}. 6 3. DIVISION Max. digit of quotient =& digits Divisor =—Dividend-. & digits PRESETTENG L AMPLE SWITCH SEQUENCE 123.4 . 1273. 4-45. 678 r eS 123, 40 2. 7015193 45.672 | (B 2. 7015193. Raund off lay. 2 —- ' \A7,7-17.39= ; => 147.2 11, 9674----+- 12,3 —+tl.97 ( 14.97. © gq minus caiculation , f2ad : C (— 1234)=45 a : S$ Q 1234. = — 3} @ S [234° 45 : 7 Gs OQ 27 4. SUCCESSIVE MULTIPLICATION AND SUCCESSIVE DIVISION ee CALCULATION ‘POINT. PALEOLATION Di SPLAY | PRESETTING = SFOUENCE AMPLE SWITCH IZ. 3 x 12.3 45.6 , 12.3% 45,5X78.9 c cS 560. 88 | = 44253. 432 78,9 eS 44253, 432 369 (> 365. i23 a 369 > 123-45. 6 é a 3. - 0. O65 78+ :-- | 45,6 | : Si 0. 0657894 | 123 ‘es 123. | 45.6 o. 123 %45.6— 78.95 ae =} 5608, 3 = 71. GB745--- 73.9 a 74, OB7452 | | 3 (|\—-3™ 789% 2 a 0, 3333333 es eoe, 99997 2 ae 626, 60 bs 5. CALCULATIONS WITH A CONSTANT if the multiplication the multipticand assumes a role of constant, whereas the divisor serves aS a constant in division, The constant switch can be set at any time before the @ key IS depressed. EX. CALCULATION CALCULATION PRESETTING AMPLE SWITCH SEQUENCE DE SPLAY ee ees BEE BBL ll r Ce le oe. i rere (< }ON 360 | a 260 ™ 12, 3=4428 2 ee 360 360 X45.6= 16416 {2.3 i 4424. 00 45.6 ns 6416.00 RON 789 or FBS, b 789--24=32. 875 F cf 567-2423. 625 oe Bo SR. BIS 567 ta 23. 625 6. SUCCESSIVE MULTIPLICATION AND DIVISION WITH A CONSTANT EX- AMPLE CALCULATION PRESEETING QECIMAL POINT SWITCH 1.275450 “23 = (2937.50 F.25 % 450 56 = 31500 .00 F.29™ 450 * 320 = (S0000.06 789~ 456-793=0.58 D [23—-d=A4l hel Bell l lll CALCULATION SEQUENGE i K?ON -— = = FT FEHR &» FTF = 3 7 "= FF Bw we oe le DISPLAY 1.25 562.5 P2937 .56 I8G000. O0 [23 es Nf 739, |. 730263 | 0.58 44.00 Note:In performing the successive multiplication or successive division, the underlined part serves as a constant factor when the constant switch #s set as shawn below, Ex. a) a@bOO(KJON Cd b) a@b@ C(KJONG dG Cc) awbSc@i(k) ON dS cd} aSbOc@{K) ON d@ 10 f/f. RAISING TO N-th POWER BECIMAL ok CALCULATION poNT CALCULATION DISPLAY PRESET TING CE AMPLE CwIT CH SCQUEN Oe TOON 249 zZ A 22rd 0 a 2 1D B+ -++58 = (2%) A. ee (233 3. 3 8 656 | ce 3 32p--9 es (32) q b [34)---Bl L ce 9 (3 3)-°- 6561 (B (34; Bl. Os) Sf. 2B (38; 6+ BBB. NOTE : 2.When the constant switch is set and a power calculation is to be oerformed the sequence shouic be 24 23 24 atc., as shown in example “a above. ? When the constant switch is not used a power calcujation is to be performed the sequence should be 22,24, 28 etc., as shown in example “b above. Li ei Examples of applied caiculation |. INTEREST CALCULATION 2. AMOUNT OF AN ANNUITY DO ee ea Sy SAPP Fe TSS If a principat of $ 12,300 were deposited for 4 years at an lf annuity of $ 12,000 were depasited at a rate of 6% interest, annual interest rate of 4.5%, the sum of the principal and - compounded anually paid on the accumulated deposit, the total intrest can be caiculateé as shown below. amount accumulated the end of S years can be calculated as | shown belaw. EX. Meee’ CALCULATION —— amppg CADCULATION —preserting = sequence «0 DISPLAY . FY. cepiny CALCULATION | SWITCH | CALCULATION — ppese Trine DISPLAY 04 0. 045 | A D. 13 : oimple interest {3 c= [. 12300: 1-0. 045% 4; . Bb “ c e t. 18 @ +. 06 — {4514 oe) | 18 {KON 12300 a4 3 14514. 00 e |. G6 ae __ —_———-_— (¢+0.06)5—1 |. $236 ~ ve 1200 © 91016 t ° 0. 08 o 12624768 & | a F (K) OFF 045 | ® 1. 3382255 = i. 045 = 67645. | | Compound interest KON O 0. 3382255 b =-:1 23001 1 4 0.045; 4 ws I, DAS es 0, $382255 - = 1. 092025 12000 —~ 14667, 9775 zs tL Wt G6! 4058. 706 (KJ OFF . G6 2 |. 1925185 ee 12300 NOTE ‘Formula for amount of an annity ts. e 14667, 978 (l+r)t—I r NOTE -Farmula for interest caiculation is: Where A:A fixed sum denoited Simple interest:A(iir™xt) Compound interest: At | 47; ! ri: interest raieé Where A: Principal r: interest rate t : Period of deposit t : Number of years l2 13 HANDLING OF THE CALCULATOR AND CHARGER 3 . DISCOUNTING CALCULATION The catculator incorporates a battery, a feature that makes Caitu- TO lation possible any time, any place, a power supply is not availa- SP bie, The design permits the caiculatar te be supplied by a general cy still CALCULATION ~ power Source for norma) performance also, AMPLE CALCULATION PRESETTING SEQUENCE DISPLAY The following are the two methods of application. SW) CH i.In case the calculator is operated on power from the battery: List price rr es Connect the charger to the corresponding part on the calcutator S14? oon ~ to charge the battery but in the calculator, as shownin the Discaunt rate S . 00 iliustratton. Inihis case, the power switch of ihe calculator 534 z Us 9.95 must be off. Thebattery is fully charged in approximately 13~ Discounted price x 195 15 hours, making it pessible for the caiculator to perform caicu- li 40 1 2600 lations. Ss [1400.00 The battery may be used continuously for approximately 3 hours. ln cases where the battery has beén employed for the specified Note: Formula for discounting catculation is: P(1-—-r) " iod. it is essential that the battery be charged trama genera} Where FP! List price period, +0 | ¥ g B ae ower source. _— Le r : Discount rate | Pp Co ayy Lr Power source main body Battery charger Switch off . 2.When the calculator is employed while the battery 15 beng charged from the power supply: The power source switch is off: however, sef to F,O,or 2 and the indicator lamp Hignts, confirming that the calculator 1s ready for use. inthis case, the caiculator isin use wheie the battery is being charged, ‘therefore, the battery is also fully chargedin approximately 45-50 hours. The calculator may be used with only the battery, after dis- connecting the charger fram the battery. - Nate: Chargeable type batteries are greatly in fluencedby temp- erature, humidity, vortage, etc. The charging time and battery appiication time are therfore standard. In same cases, the battery service interval may be reduced if the charge is performed at a temperature " other than that specified in the guarantee. co Aaa FH Power source Switch F.0 or 2. Battery charger 14 15 PRECAUTIONS IN HANDLING THE BATTERY l. When the caiculator ts initialiy placed tn operation or when nat operated for approximaiety 2 months, the power level of the battery may be reduced considerably. lt is therefore advisable to operate the catculator while the battery is being charged. 2. tt 1S advisable to operate the calculator cn battery power so that it may discharge, thus preventing deterioration and extending the service life. The battery should be charged i~2 times within two months for the purpose mentioned above. 3. When the power level is reduced, the indication lamp becomes dark, ifidicating that caicuwation is impossible. In this case, operate the calculator with the battery connected ta the charger. 4. |t is difficult to charge the battery when the ambient temperature is less than 0 “C ar whenmore than 40°C. in such cases, avoid, Gy all means, charging the battery as it wit deteriorate performance. >. Phe charger is furnished with the calculator at the time of purchase. In addition to the charger, it is recommended that the following, designed exciusively for Toshiba electronic calculators, be employed for more excellent performance. Model Aoplicabte voltape Bd-idl 100, 1160, 117, 177V BH-1G3 200, 220, 240¥ Furthermore, Model BH-102 designed by TOSHIBA fer quick charge i3-hour charge, 3-hour continuous use type?) is also. 16 HOW TO USE YOUR TOSHIBA BC-O80iB Although TOSHIBA BC—O80O1B being manufactured under the highest quality control and production tecniques the following precautions should be cbserved when using if, i. When pressing any keys, apply positive pressure, Pressing two keys at the same time or pressing any key anly haif-way wilt resuit in emonesus calculations. ¢, Do not place any other object on the machine when power switcn is an. Direct exposure to sunlight for extended periods, or to other heat sources shouid be avoided. 3. Use a piece of silicon cloth, never alchol, petroleum, oil, etc., to clean the machine, 4A Contact TOSHIBA calculator's dealer when trouble cccurs. SPECIFICATIONS Model Number : BC—OSOiB . Numeral Keys . Ten-keys Capacity ° & digits. Display 8 digits and symbal Addition and subtraction: 8 digits Multiplication : Max. digits of product Bdigits Multiplicand+ Multipiier =Max. 16 digits Division : Max digits of quotient —8 digits Divisor -=Dividend=8 digits Decimal point system. Floating {F}, presetting (0, 2} decrmal cant system Computing elements: L.S5.1., Glock pulse : 30 KHz Operations - Four fundamental aperations, successive multiplication and dinision, maltrplication with a constant, raising to a power, and others. Ambient temperature: 00 to 40°C (32°F to {04°F} Power Supply : AGIOO, 110, t17, 120, l27 or 200, 220. 240¥ 50/60Hz Power consumption - W Dimensions : [GAmm(W)*X 265 mm {(D) x 46mm(H} Weight : 0.5kge (1,1 Ibs.) 1/