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Excess-3, 3-excess [1] [2] [3] or 10-excess-3 binary code (often abbreviated as XS-3, [4] 3XS [1] or X3 [5] [6]), shifted binary [7] or Stibitz code [1] [2] [8] [9] (after George Stibitz, [10] who built a relay-based adding machine in 1937 [11] [12]) is a self-complementary binary-coded decimal (BCD) code and numeral system. It is a biased ...
The TI-108 is a basic handheld calculator manufactured by Texas Instruments aimed at introducing younger students to basic arithmetic and calculator functionality. [1] The TI-108 is widely used among younger students due to its low cost, durability, and simplicity.
A slide calculator, also known as an Addiator after the best-known brand, is a mechanical calculator capable of addition and subtraction, once made by Addiator Gesellschaft of Berlin, Germany. Variants of it were manufactured from 1920 until 1982. The devices were made obsolete by the electronic calculator.
If an adding circuit is to compute the sum of three or more numbers, it can be advantageous to not propagate the carry result. Instead, three-input adders are used, generating two results: a sum and a carry. The sum and the carry may be fed into two inputs of the subsequent 3-number adder without having to wait for propagation of a carry signal.
The TI-108 is a simple four-function calculator which uses single-step execution.. The immediate execution mode of operation (also known as single-step, algebraic entry system (AES) [7] or chain calculation mode) is commonly employed on most general-purpose calculators.
The "X" in all current TI-30 models refers to the addition of a 10+2 display (that is, a 10 digit mantissa plus a 2-digit exponent) in 1993; with the addition of a 2-line display and a D-pad in the XIIS/XIIB in 1999, the TI-30 line split in 2, with the TI-30Xa becoming TI's overall entry-level scientific, and the enhanced XII designs offering ...
Some of the more notable improvements of the TI-82 over the TI-81 include the following: the addition of a link port to enable programs and other data to be transferred between two calculators or between a calculator and a computer; the addition of two new graphing types – polar and sequence, the addition of a new type of data – the list ...
The TI-83 was the first calculator in the TI series to have built-in assembly language support. The TI-92, TI-85, and TI-82 were capable of running assembly language programs, but only after sending a specially constructed (hacked) memory backup. The support on the TI-83 could be accessed through a hidden feature of the calculator.