Texas Instruments - Rekenmachine - 1970-1980 - TMC0983

he TI Programmer is a very unusual calculator doing math not only on the base-10 system like our natural life but on base-8 and base-16, too. Long before SW-engineers got nice languages like JAVA or C++ they were used to program the microcontrollers in their native assembler languages. The only things such a microcontroller is executing are simple instructions to manipulate data. With the TI Programmer you could simulate these operations, e.g. AND, OR, XOR and SHIFT's in the data-format of modern microcontrollers (hex or base-16) or old-fashioned minicomputers (octal or base-8).

TI Programmer: Efficient, time saving solutions
for computer programming professionals and hobbyists. 
Hexadecimal. Octal. Decimal. Texas Instruments new TI Programmer lets you perform fast, accurate conversions and calculations in any of these number bases...portable power you can apply right to the job, right where the job is.
Number base conversions.
Enter a number in base 8, 10 or 16, Then with a touch of a key, that number is quickly and accurately converted to either of the other number bases. Results appear instantly on the TI Programmer's bright, easy-to-read LED display. And a convenient mode indicator means you always know what number base you're operating in.
Number base calculations.
The TI Programmer quickly handles arithmetic computations, too - in all three bases. Immediate answers to binary computer problems...giving you more time for important programming or troubleshooting tasks.
Ideal for use with any size computer.
TI Programmer gives you 8-digit capacity in all bases...capability to handle even IBM 370 problems with ease. And since the TI Programmer uses integer "two's complement" arithmetic in hexadecimal and octal bases, it operates naturally, just like computers does. Decimal base features signed floating point arithmetic for convenience day-to-day math. [1'sC] key provides "one's complement" capability in HEX and OCT bases.For additional flexibility in minicomputer and microcomputer work, the TI Programmer has the logical functions [AND], [OR], Exclusive OR [XOR] and Shift [SHF]. These functions operate bit by bit on numbers in HEX and OCT to give you the same capability provided by many computer instruction sets including the latest technology in mini/micro systems...and a unique tool for computer repair and digital logic design.
Versatile three key memory.
Three-key memory lets you store, recall or sum to memory contents. Parantheses provide the capability to specify the order of operation execution in a problem - with up to 4 pending operations. The TI Programmer even handles mixed number bases and combined logical and arithmetic operations; conversions and operations take place in the order you specify. Constant mode allows constant operations with all arithmetic and logical operations.
Texas Instruments, 1977


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