Pictures |
Model |
Aka |
Version |
Intro date |
End date |
Type |
Last update |
Progr |
RAM |
ROM |
Nb functions |
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Nb keys |
Display type |
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APF
|
Pictures |
Model |
Aka |
Version |
Intro date |
End date |
Type |
Last update |
Progr |
RAM |
ROM |
Nb functions |
Alpha |
Nb keys |
Display type |
Display |
Graph XY |
Ext |
Print |
Sav |
Clock |
Microprocessor |
Functions |
Size |
Weight |
Batteries |
Ext power |
Power |
Twin |
Made in |
Link(s) |
Remarks |
| Mark III | | | 1973 | >=1973 | 4 funct | 2008_07_13 | N | 0 | | 5 | N | 19 | LED | 8 | N | N | N | N | N | TI TMS0101ANC | D | | | 6xsealed | Y | | | Japan | | |
| Mark V | | | 1973 | >=1973 | 4 funct | 2007_08_28 | N | 0 | | 4 | N | 18 | VFD | 8 1/2 | N | N | N | N | N | TI TMS0101 | | 188x120x40 | | 4xC | Y | | Digical Mark V | Japan | | Battery meter. |
| Mark VI | | | 1973 | | 4 funct | 2008_09_13 | N | 1 | | 6+4mem | N | 23 | VFD | 8 1/2 | N | N | N | N | N | | % +/- MC MR M- M+ | 152x108x32 | | 4xAA | Y | | | | | Exists in 3 variations. |
| Mark VIII | | | 197x | | 4 funct | 2007_12_20 | N | 1 | | 4+3mem | N | 20 | VFD | 8+indic | N | N | N | N | N | | M- M+ MRC | 216x121x | | 4xC | Y | | | | | |
| MARK 10 | | | 1974 | | 4 funct | 2007_08_28 | N | 1 | | 6+4mem | N | 23 | VFD | 8 1/2 | N | N | N | N | N | | % +/- MC MR M- M+ | 165x114x | | 4xAA | Y | | | | | |
| MARK 14 | | | 197x | | 4 funct | 2011_05_27 | N | 1 | | 7+4mem | N | 24 | LED | 8 1/2 | N | N | N | N | N | | D % +/- MC MR M+ M- | | | Y | Y | | | | | |
| MARK 14/MEMORY | | | 1974 | >=1974 | 4 funct | 2011_05_27 | N | 1 | | 7+4mem | N | 24 | LED | 8 1/2 | N | N | N | N | N | | D % +/- MC MR M+ M- | 133x83x | | 6xAA | 7.5VDC 100mA | | | USA | | |
| MARK 15 | | | ~1974 | | 4 funct | 2007_08_28 | N | | | | N | | LED | | N | N | N | N | N | | % | 140x76x | | 1x9V | | | | | | |
| MARK 16 | | | 197x | | 4 funct | 2009_04_19 | N | 1 | | 6+5mem | N | 24 | LED | 8 | N | N | N | N | N | | D % MC MR M+ M- EX | 152x80x | | 1x9V | Y | | | | | |
| MARK 21 | | | ~1976 | | 4 funct | 2007_08_28 | N | 1 | | 6+5mem | N | 24 | VFD | 8 | N | N | N | N | N | | % EX x<>M MC MR M+ M- | 159x76x | | sealed batt | Y | | | | | |
| MARK 22 | | | 1977 | | Scientific | 2007_08_28 | N | 1 | | 17+5mem | N | 19 | VFD | 8 | N | N | N | N | N | | EE sin cos tan asin acos atan Sqrt lnx e^x Pi 1/x EEconv MC x<>M M- MR M+ | 159x76x | | sealed batt | Y | | | | | |
| MARK 23 | Electronic Slide Rule Calculator | | ~1974 | >=1975 | 4 funct | 2009_04_18 | N | 1 | | 9+5mem | N | 20 | VFD | 8 | N | N | N | N | N | | % x<>y Sqrt 1/x x^2 MC M+ M- x<>M MR | 159x76x | | sealed batt | Y | | | Japan | | |
| MARK 24 | | 1 | 197x | | 4 funct | 2007_08_28 | N | 1 | | | N | | LED | | N | N | N | N | N | | % +/- mem | 152x76x | | 1x9V | | | | | | |
| MARK 24 | | 2 | 197x | | 4 funct | 2007_08_28 | N | 1 | | 7+4mem | N | 24 | VFD | 8 1/2 | N | N | N | N | N | | DR % EX MC MR M+ M- | | | Y | Y | | | | | |
| MARK 25 / MEMORY | | | ~1975 | | 4 funct | 2009_04_18 | N | 1 | | 7+4mem | N | 24 | VFD | 8 | N | N | N | N | N | | D % EX MC MR M+ M- | 140x76x | | 1x9V | Y | | | | | |
| MARK 26 | | | ~1975 | | 4 funct | 2010_02_17 | N | 1 | | 5+5mem | N | 19 | LED | 8 | N | N | N | N | N | | % MC x->M M- MR M+ | 114x64x | | 1x9V | Y | | | Japan | | "Exists with or without ""MC x->M M- M+"" labels." |
| MARK 27 | | | ~1973 | | 4 funct | 2009_04_18 | N | 1 | | 5+1mem | N | 19 | VFD | 8 | N | N | N | N | N | | % M | 127x76x | | 1x9V | Y | | | USA | | |
| MARK 28 | | | ~1973 | | 4 funct | 2007_08_28 | N | 1 | | | N | | VFD | | N | N | N | N | N | | % mem | 114x64x | | 1x9V | | | | | | Looks like Mark 26 but not LED. |
| MARK 29 | | | 197x | | 4 funct | 2007_08_28 | N | 1 | | 9+5mem | N | 20 | LED or VFD | 8 | N | N | N | N | N | | % x<>y Sqrt 1/x x^2 MC M+ M- x<>M MR | | | Y | Y | | | | | |
| MARK 30 | | | <=1975 | >=1975 | 4 funct | 2009_03_16 | N | 1 | | 9+5mem | N | 20 | VFD | 8 1/2 | N | N | N | N | N | | % x<>y Sqrt 1/x x^2 MC M+ M- x<>M MR | 140x76x | | 1x9V | Y | | | USA | | |
| MARK 31 | | | 1976 | | 4 funct | 2007_08_28 | N | 1 | | 9+5mem | N | 27 | VFD | 8 | N | N | N | N | N | | x<>y 1/x x^2 Sqrt % MC MR x<>M M- M+ | 140x76x | | 1x9V | Y | | | | | |
| MARK 32 | | | ~1973 | | 4 funct | 2007_08_28 | N | 1 | | 8+5mem | N | 19 | LED | 8 | N | N | N | N | N | | % Sqrt 1/x x^2 MC M- M+ x<>M MR M+ | 127x76x | | 1x9V | Y | | | | | |
| MARK 33 | | | ~1976 | | 4 funct | 2007_08_28 | N | 1 | | 5+5mem | N | 23 | VFD | 8 | N | N | N | N | N | | % MC MR x<>M M- M+ | | | 1x9V | Y | | | | | |
| MARK 34 | | | 1978 | | 4 funct | 2007_08_28 | N | 1 | | 11+5mem | N | 29 | VFD | 8 | N | N | N | N | N | | [ ] Pi 1/x e^x Sqrt MC MR x<>M M- M+ | 140x70x | | 1x9V | Y | | | | | |
| MARK 40 | | | <=1975 | >=1975 | 4 funct | 2007_12_20 | N | 0 | | 5 | N | 18 | LED | 8 1/2 | N | N | N | N | N | (GI C-593 or Mostek MK50282 N) + Toshiba T1347 (display drv) | % | 115x65x33 | 92gr | 1x9V | Y | | Montgomery Ward P90 | | | |
| MARK 41 | | | 197x | | 4 funct | 2007_08_28 | N | 0 | | 6 | N | 19 | LED | 8 | N | N | N | N | N | | % Sqrt | 114x64x | | 1x9V | Y | | | | | |
| MARK 42 | | 1 | ~1976 | | 4 funct | 2007_08_28 | N | 0 | | 5 | N | 19 | LED | 8. | N | N | N | N | N | | % | 126x65x26 | 70gr | 1x9V | 7.5VDC 100mA | | | | | |
| MARK 42 | | 2 | 197x | | 4 funct | 2007_08_28 | N | 0 | | 6 | N | 19 | LED | 8. | N | N | N | N | N | | % Sqrt | 126x65x26 | | 1x9V | 7.5VDC 100mA | | | | | |
| MARK 43 | | | 197x | | 4 funct | 2007_08_28 | N | 0 | | 5 | N | 18 | LED | 8 | N | N | N | N | N | | % | 114x64x | | 1x9V | Y | | | | | |
| MARK 50 | Scientific Calculator | | 1975 | | Scientific | 2009_04_19 | N | 1 | | 17+5mem | N | 19 | VFD | 8 | N | N | N | N | N | | EE sin cos tan asin acos atan Sqrt lnx e^x Pi 1/x EEconv MC x<>M M- MR M+ | 140x76x | | 1x9V | Y | | Montgomery Ward P330 | Japan | | |
| MARK 51 | Scientific Calculator | | <=1975 | >=1975 | Scientific | 2007_12_20 | N | 1 | | 17+5mem | N | 19 | VFD | 8 | N | N | N | N | N | General Instrument (GI) CF596 | EE sin cos tan asin acos atan Sqrt lnx e^x Pi 1/x EEconv mc x<>m m- mr m+ | 140x76x | | 1x9V | Y | | | | | |
| MARK 52 | | | 197x | | Scientific | 2007_08_28 | N | 1 | | 17+5mem | N | 19 | LED | 8 | N | N | N | N | N | | EE EEconv sin cos tan asin acos atan Sqrt lnx e^x Pi 1/x MC x<>M M- MR M+ | | | 1x9V | | | | | | |
| MARK 55 | | | 1977 | | Scientific | 2007_12_20 | N | 1 | | >=45+2mem | N | 30 | LED | 12 or 10 1/2+2 1/2 | N | N | N | N | N | | ln e^x sin cos tan asin acos atan sinh cosh tanh asinh acosh atanh Sum+ y^x +/- x<>y v EE ENT ->pol ->rec ->rad ->deg rad deg meanx,s Sqrt x^2 x! c->f % ltr->gal Delta% cm->in LASTX Pi 1/x sci kg->lb RCL STO | 159x76x | | 3xAA sealed | 4.5V | | | | | RPN calculations. HP display. |
| MARK 56 | | | 1977 | >=1977 | Scientific | 2010_01_29 | N | | | | N | | LED | | N | N | N | N | N | | | 152x76x | | sealed batt | Y | | | | | |
| MARK 60 | | | 197x | | 4 funct | 2007_08_28 | N | 0 | | 5 | N | 18 | LED | 8 | N | N | N | N | N | | % | 114x64x | | 1x9V | Y | | | | | |
| EXECUTIVE | MARK 61 | | 1977 | >=1977 | 4 funct | 2010_01_29 | N | 1 | | 6+5mem | N | 24 | VFD | 8 1/2 | N | N | N | N | N | | Sqrt % mc mr m<->x m- m+ | 140x70x13 | | sealed batt | Y | | | | | |
| EXECUTIVE | MARK 61S | | 197x | | 4 funct | 2007_08_28 | N | 1 | | 6+5mem | N | 24 | VFD | 8 1/2 | N | N | N | N | N | | Sqrt % mc mr m<->x m- m+ | 140x70x13 | | sealed batt | Y | | | | | Same as Mark 61 except black color. |
| MARK 62 | | | 197x | | 4 funct | 2007_08_28 | N | | | | N | | LED | | N | N | N | N | N | | Sqrt % | 127x64x | | 1x9V | | | | | | |
| MARK 64 | | | 197x | | 4 funct | 2007_08_28 | N | 1 | | 8+5mem | N | 19 | LED | | N | N | N | N | N | | % 1/x Sqrt x^2 MC x<>M M- MR M+ | 127x64x | | 1x9V | | | | | | |
| MARK 65 | | | 1977 | >=1977 | 4 funct | 2007_08_28 | N | 1 | | 6+5mem | N | 24 | VFD | 8 1/2 | N | N | N | N | N | TMS1044NL | % Sqrt mc mr m/x m- m+ | 125x74x26 | | 3xAAA | 7.5VDC 100mA | | | | | |
| MARK 65r | | | 1977 | >=1977 | 4 funct | 2010_01_29 | N | 1 | | 6+5mem | N | 24 | VFD | 8 1/2 | N | N | N | N | N | TMS1044NL | Sqrt % mc mr m/x m- m+ | 125x74x26 | | 2xAAA sealed | 7.5VDC 100mA | | | Japan | | Same as MARK 65 except sealed batt |
| MARK 66r | | | 1977 | | 4 funct | 2007_12_20 | N | 1 | | 7+5mem | N | 29 | VFD | 8 1/2 | N | N | N | N | N | | [ ] x<>y 1/x x^2 Sqrt % mc mr mx m- m+ | 127x70x | | sealed batt | Y | | | | | |
| MARK 68r | | | 1977 | | Scientific | 2007_12_20 | N | 1 | | 25+5mem+Conv | N | 28 | VFD | 8 1/2 | N | N | N | N | N | | Sqrt x^2 y^x % [( )] Pi +/- ee sin asin cos acos tan atan logx 10^x lnx e^x 1/x CONV MC x<>M M- MR M+ | 127x70x | | sealed batt | Y | | | | | |
| MARK 70 | | 1 | ~1974 | | 4 funct | 2007_08_28 | N | 1 | | 5+5mem | N | 23 | VFD | | N | N | N | N | N | | % MC MR x<> M- M+ | 127x76x | | 1x9V | | | | | | |
| MARK 70 | | 2 | ~1974 | | 4 funct | 2007_08_28 | N | 1 | | 5+5mem | N | 23 | LED | 8 | N | N | N | N | N | | % MC MR x<>M M- M+ | | | 1x9V | Y | | | | | |
| MARK 72 | | | 197x | | 4 funct | 2008_09_13 | N | 1 | | 6+5mem | N | 24 | LED | 8 | N | N | N | N | N | | Sqrt % MC MR x<>M M- M+ | 140x76x | | 1x9V | Y | | | Hong Kong | | |
| MARK 73 | B-5000M | | 197x | | 4 funct | 2007_08_28 | N | 1 | | 5+2mem | N | 20 | LED | 8 | N | N | N | N | N | | % M+ MR | 127x76x | | 1x9V | Y | | | | | |
| M74 | MARK 74 | | <=1979 | >=1979 | 4 funct | 2009_04_18 | N | 1 | | 6+4mem | N | 24 | LED | 8. | N | N | N | N | N | TI TMS0972NL | +/- % MC MR M- M+ | 135x72x23 | 86gr | 1x9V | 9VDC | | | Singapore | | |
| MARK 75 | | | 197x | | 4 funct | 2007_08_28 | N | 1 | | 5+5mem | N | 23 | LED or VFD | 8 | N | N | N | N | N | | % MC MR x<>y M- M+ | | | Y | Y | | | | | |
| MARK 82 | | | <=1975 | >=1976 | 4 funct | 2010_01_29 | N | 0 | | 5 | N | 18 | LED | 8 | N | N | N | N | N | Mostek MK50288N + Toshiba T1347 | % | 131x66x24 | | 1x9V | 7.5VDC 100mA | | | Japan | | |
| MARK 84 | | | 1977 | >=1977 | 4 funct | 2010_01_29 | N | 1 | | 5+5mem | N | 19 | LED | 8 | N | N | N | N | N | | % MC x<>M M- MR M+ | 131x66x24 | | 1x9V | Y | | | | | "Exists with or without ""MC x->M M- M+"" labels." |
| MARK 85 | | | 197x | | 4 funct | 2007_08_28 | N | 1 | | 5+5mem | N | 23 | VFD | 8 1/2 | N | N | N | N | N | | % mc mr m<>x m- m+ | 125x74x26 | | 3xAAA | Y | | | | | |
| MARK 86 | | | 1976 | >=1976 | 4 funct | 2010_01_29 | N | 1 | | 9+5mem | N | 27 | VFD | 8 1/2 | N | N | N | N | N | | x<>y 1/x x^2 Sqrt % mc mr m<>x m- m+ | 125x74x26 | | 3xAAA | Y | | | | | |
| MARK 88 | | | 1976 | >=1976 | Scientific | 2010_01_29 | N | 1 | | | N | 19 | VFD | | N | N | N | N | N | | | 127x70x | | 3xAAA | | | | | | |
| MARK 90 | | | 1977 | >=1977 | Scient+Prog | 2010_01_29 | Y | 10+72steps | | Scient+Prog | N | 45 | LED | 8+2 | N | N | N | N | N | | Scient+Prog | 152x76x25 | | 3xSealed | DC | | | | | |
| RS-1 | Kel-Co | | c1979 | | 4 funct | 2010_06_13 | N | | | 16 | N | 29 | LED | | N | N | N | N | N | | Race tracking | 140x70x | | 1x9V | | | APF RS-1, Cannella RS1 | | | |
| RS-2 | Trotting/pacing computer and Kel-co by APF | | <=1979 | >=1980 | 4 funct | 2010_06_13 | N | | | | N | 29 | LED | | N | N | N | N | N | | Race tracking | 140x70x | | 1x9V | | | | | | |
| MATHEMAGICIAN | 1500 | | ~1980 | | Game | 2010_05_14 | N | 0 | | 4+3game | N | 20 | LED | | N | N | N | N | N | | SEL HLT ? | | | Y | | | | | | |
| 1902 | | | <=1982 | >=1982 | 4 funct | 2007_09_17 | N | 1 | | 6+4mem | N | 25 | LCD | 8+indic | N | N | N | N | N | Sharp LI3023M | Sqrt % MC MR M- M+ | 116x66x19 | | 2xAA | N | | | | | |
| 1948A | | | 197x/198x | | 4 funct | 2010_01_29 | N | 1 | | 8+4mem | N | 25 | YLCD | 8+indic | N | N | N | N | N | | R +/- Sqrt % MC MR M- M+ | 110x66x9 | | 2x1.5Vcell | N | | | Hong Kong | | |
| M2201 | M 2201 | | 198x | | 4 funct | 2010_03_24 | N | 1 | | 11+4mem | N | 30 | LCD | 8+indic | N | N | N | N | N | | x^n Pi +/- x^2 1/x Sqrt % MC MR M- M+ | | | Y | N | | | | | |
| M 2202 | M2202 | | 198x | | 4 funct | 2010_03_24 | N | 1 | | 11+4mem | N | 30 | LCD | 8+indic | N | N | N | N | N | | () Pi +/- x^2 1/x Sqrt % MC MR M- M+ | | | Y | N | | | | | |
| MARK 5501 | | | 197x/198x | | 4 funct+time | 2007_08_28 | N | 1 | | 6+3mem+9time | N | 30 | LCD | 8+indic | N | N | N | N | Y | | Sqrt % M- M+ MRC SET YMD HMS T ALM/OFF ADJ LAP ST/SP PM | | | 2xcell | N | | | | | |
| 3550 | MINI-CALC | | 198x | | 4 funct | 2010_02_17 | N | 1 | | 6+4mem | N | 24 | LCD | 8+indic | N | N | N | N | N | | Sqrt % MC M- MR M+ | | | Y | N | | apf M 3550 | | | |
| M 3550 | MINI-CALC | | 198x | | 4 funct | 2010_02_17 | N | 1 | | 6+4mem | N | 24 | LCD | 8+indic | N | N | N | N | N | | Sqrt % MC M- MR M+ | | | Y | N | | apf 3550 | Hong Kong | | |
| 5539 | | | 198x | | 4 funct | 2007_08_28 | N | 1 | | | N | 28 | LCD | 8+indic | N | N | N | N | Y | | | 57x89x | | | N | | | | | |