Product Timeline-35A1972-07-01one at all (also: Classic, RPN, etc.)-80A1973-02-01business, TVM4, date arithmetic, bond, depreciation,shift key, statistics, display mode control-45A1973-05-01last X, numbered registers, trig modes, conversionconstants, store/recall arithmetic-46A<=1973printer, no display-65A1974-01-19programmable, card reader, octal, f-1 key,triple shift key-70A1974-08-01dedicated TVM registers-55A1975-01-01timer-21A1975-02-01Woodstock-25A1975-08-01none-22A1975-09-01none-91A1976-03-01Topcat-27A1976-05-01"do everything" (scientific, statistical, business),normal distribution, heavy statistics-25C1976-07-01continuous memory, "upgrade"-95CnotJUMP-67A1976-07-01"matched set" (w/-97A), last Classic,rapid reverse branching, synthetic programming-97A1976-07-01"matched set" (w/-67A),rapid reverse branching, synthetic programming-10A1977-07-01adding machine logic, "handheld" printer-29C1977-07-01first CMOS/SOS memory (with -19C), last Woodstock-92A1977-07-01TVM5, bond, depreciation, IRR, calendar selection-19C1977-09-01first CMOS/SOS memory (with -29C)-97S1977-12-01serial output, last Topcat-31E1978-05-01Spice series (with -33E and -38E)-33E1978-05-01Spice series (with -31E and -38E)-38E1978-05-01Spice series (with -31E and -33E), cash flows,moveable program/register divider-01A1978-07-01algebraic, 4 function, watch, non-EEX entry machine-32E1978-07-01(with -37E)-37E1979-07-01(with -32E)-33C1979-07-01last Spice (with -34C and -38C),last ->C conversion (with -38C)-34C1979-07-01numerical integration, root finder, gamma,last Spice (with -33C and -38C)-38C1979-07-01last Spice (with -33C and -34C),last ->C conversion (with -33C)-41C1979-07-01Coconut, alpha, ports, user keyboard,CMOS/SOS CPU-85A1979-12-07?-85F1980-05-07?-41CV1980-12-15none-83A1980-12-15?-83F1981-01-15?-41opt11981-03-24first blank keyboard-11C1981-09-01Voyager (with -12C), RAN#-12C1981-09-01Voyager (with -11C)-87A1982-02-08?-86A1982-06-14?-87XM1982-06-14?-15C1982-07-01complex including hyperbolics, matrix,all 12 conditionals!-16C1982-07-01programmer's (base arithmetic, variablelength word size)-10C1982-09-02last Voyager-75C1982-09-15portable computer-85B1983-06-01?-86B1983-07-01?-41CX1983-10-01none-71B1984-02-01Saturn machine, IEEE math-75D1984-02-01none-18C1986-06-01Clamshell, algebraic since -01A, solver,list-based cash flow and stats, I/R output,appointments and clock (not counting -71* and -75*)-28C1987-01-05RPL, general units, graphing, complex numbers,symbolic math, symbolic integration, differentiation-94D1987-028086-compatible (with -94E and -94F)-94E1987-028086-compatible (with -94D and -94F)-94F1987-028086-compatible (with -94D and -94E)-17B1988-01-04Pioneer, use of two-level ALPHA menu(all with -27S)-19B1988-01-04text, multiple language support-27S1988-01-04Pioneer, use of two-level ALPHA menu(all with -17B), algebraic scientific-28S1988-01-04graphics objects, directories for user variables-22S1988-06-01pre-programmed equations-32S1988-06-01RPN solver and identification of variables by RCL,checksums for programs, L## display of program lines14B1988-10-31"vertical" menus, COMPUTE key-42S1988-10-31polar complex notation-10B1989-01-03none-20S1989-01-03libraries (with -21S)-21S1989-01-03libraries (with -20S), statistics-only17BII1990-01dual logic machine (with 19BII)19BII1990-01dual logic machine (with 17BII), last Clamshell48SX1990-03-06real units that work, bidirectional I/R,matrix editor, equation writer, kermit,3D complex, stack application, ->Q, serial port,overhead projector support from HP32SII1991-03-01combined RPN and algebraic solver,use of RCL to build strings,use of equations as messages,algebraic equations within RPN programs,use of different representations for subtractionand minus sign in front of numbers,use of smaller E to indicate exponentfractions48S1991-04-02none95LX1991-04-23palmtop, painted key legends, second Lotus95LX1MB1992-03-02none100LX1993-05-0425x80 display, fast I/R48GX1993-06-01128K RAM built in, able to acceptbank-switched RAM cards in port 2 up to 4 meg100LX2MB 1994-02-012MBytes of memory48G1995-01-0138G1995-04-06hard cover, split screen, ApLets,implied multiplication, numeric table view ofequations, hang tag box, cardboard packaging48G+1998-03-30first machine from Australia6S1999-04-01English/French manual, DRG key,DRG conversions,AB/C key, D/C key DMS display mode, cube root, XNOR,first complete machine from Australiajust being different:\GS+ named DATA\GS- named DELFLO modeweird max on hexadecimal valuesdubious: can't set radix mark, must unscrew caseto change batteries6SSolar1999-04-01solar power, no off function, otherwise same list as 6S49G1999-05-21CAS, rubber keys, use of flash, use of fieldupgradability, CUT/COPY/PASTE/FIND-REPLACE, TOOL,downloadable fonts30S2000-04-07swappable keyboard colors39G2000-??40G2000-??10Bii2000-??9G2003-01-24none9S2003-01-24none12CPt2003-05-??49G+2003-10 US, 2003-09 rest of world?17BII+2003-09-23?33S2003-10?integer division39G+2003-10??48GII2003-10?infinite precision integers40g+2004-01-0819BII+2004-01?40GS2005-fall8s2006-01-0112CPA2006-?39GS2006-?50G2006-?10s2007-07-12?35s2007-07-12?20b2008-??30b2008-??10s+2012-10-0112BIInever introduced?-56Anever introduced?-66Anever introduced?-81A??-83A??-85F??-95Cnever introduced?38G+never introduced?