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256 KB of RAM (154 KB user accessible), 4 MB of Flash ROM (3 MB user accessible) 320×240 pixels 26×10 characters (large font) 7.6 × 3.4 × 0.75: No 2015 150 Allowed Allowed TI-85: Zilog Z80 @ 6 MHz 28 KB of RAM 128×64 pixels 21×8 characters 6.875 x 3.31 x 0.938: No 1992 130 Allowed Allowed TI-86: Zilog Z80 @ 6 MHz 128 KiB of RAM
The calculator also handles vectors, matrices and complex numbers better than the TI-83. One drawback, however, is that the statistics package on the TI-83 range doesn't come preloaded on the TI-86. However, it can be downloaded from the Texas Instruments program archive and installed on the calculator using the link cable. [1]
The Sharp PC-1403 was a small scientific calculator and pocket computer manufactured by Sharp. It was the successor of the Sharp PC-1401 , and had better display, more RAM and better system software.
The TI-84 Plus C Silver Edition was released in 2013 as the first Z80-based Texas Instruments graphing calculator with a color screen.It had a 320×240-pixel full-color screen, a modified version of the TI-84 Plus's 2.55MP operating system, a removable 1200 mAh rechargeable lithium-ion battery, and keystroke compatibility with existing math and programming tools. [6]
In 2006, new calculators were upgraded to HW4 which was supposed to offer increases in RAM and speeds up to 16 MHz, but some benchmarks made by users reported speeds between 12.85 and 14.1 MHz. The touted advantages of the TI-89 Titanium over the original TI-89 include two times the flash memory (with over four times as much available to the user).
The HP 48 series of calculators support a stack-based programming language named RPL, a supposed combination of Reverse Polish notation (RPN) and Lisp. RPL adds the concepts of lists and functions to stack -based programming, allowing the programmer to pass unevaluated code as arguments to functions, or return unevaluated code from a function ...
U.S. patent 4,001,566 – Floating Point Calculator With RAM Shift Register – 1977 (originally filed GB March 1971, US July 1971), very early single chip calculator claim. U.S. patent 5,623,433 – Extended Numerical Keyboard with Structured Data-Entry Capability – J. H. Redin , 1997 (originally filed 1996), Usage of Verbal Numerals as a ...
Designed in 1992 as TI's second graphing calculator (the first was the TI-81), it was replaced by the TI-86, which has also been discontinued. The TI-85 was significantly more powerful than the TI-81 , as it was designed as a calculator primarily for use in engineering and calculus courses.