PTK-1072-1

Datasheet legend
Ab/c: Fractions calculation
AC: Alternating current
BaseN: Number base calculations
Card: Magnetic card storage
Cmem: Continuous memory
Cond: Conditional execution
Const: Scientific constants
Cplx: Complex number arithmetic
DC: Direct current
Eqlib: Equation library
Exp: Exponential/logarithmic functions
Fin: Financial functions
Grph: Graphing capability
Hyp: Hyperbolic functions
Ind: Indirect addressing
Intg: Numerical integration
Jump: Unconditional jump (GOTO)
Lbl: Program labels
LCD: Liquid Crystal Display
LED: Light-Emitting Diode
Li-ion: Lithium-ion rechargeable battery
Lreg: Linear regression (2-variable statistics)
mA: Milliamperes of current
Mtrx: Matrix support
NiCd: Nickel-Cadmium rechargeable battery
NiMH: Nickel-metal-hydrite rechargeable battery
Prnt: Printer
RTC: Real-time clock
Sdev: Standard deviation (1-variable statistics)
Solv: Equation solver
Subr: Subroutine call capability
Symb: Symbolic computing
Tape: Magnetic tape storage
Trig: Trigonometric functions
Units: Unit conversions
VAC: Volts AC
VDC: Volts DC
Years of production:   Display type: Numeric display  
New price:   Display color: Red  
    Display technology: Light-emitting diode 
Size: 6"×3"×1" Display size: 8+2 digits
Weight: 8 oz    
    Entry method: Algebraic 
Batteries: 3×"AA" NiCd Advanced functions: Trig Exp Hyp Lreg Units 
External power: DC adapter   Memory functions: +/-/×/÷ 
I/O:      
    Programming model: Keystroke entry 
Precision: 10 digits Program functions: Jump Cond  
Memories: 10 numbers Program display: Keycode display  
Program memory: 72 program steps Program editing: Overwrite capability  
Chipset: MOS Technologies   Forensic result: 9.14705679  

*OEM APF-90.

PTK-1072 The PTK-1072-1 is functionally equivalent to the PTK-1072, but different in appearance. Instead of a rebranded Commodore PR-100, this machine is a rebanded APF-90.

For a long time, I did not know the actual model number. Because of the similarity to the APF-90, I took an educated guess: PTK-1090. But I was wrong: The actual model number, as I have just been infomed by David Simon of Hungary, is PTK-1072-1.

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