Texas Instruments TI-89 Tip List page 465

Linux
An open-source operating system alternative to Windows. There is some Linux support for TI-89/TI-92
Plus calculators, including a TIGCC C compiler and file transfer software which performs GraphLink
functions.
local variable
A local variable is created by a function or program, and only exists while the program is running. Local
variables are used for temporary storage during program execution. See also global variable.
lockup See crash
machine code
Strictly, program code for the calculator expressed as binary integers. Machine code is the lowest level
of programming, assembly language (with mnemonics) is the next level up, and high-level languages
such at TI Basic or C are the highest programming level. Assemblers and compilers convert language
instructions to machine code. Sometimes machine code is used when assembly is meant.
manual
Instructions for the calculator. TI no longer includes complete manuals with the TI-89 and TI-92 Plus,
instead, an abbreviated edition is included. Complete manuals, which are necessary for most
calculator operation, are available for download at www.education.ti.com. Bound, printed editions can
also be purchased from TI, in a variety of languages, but these are usually not as up to date as the
downloaded versions.
math class
From Ray Kremer's glossary: "The source of many concepts used by the calculators. Useful for
determining what entry will achieve the desired result".
mode
A means to control different aspects of calculator operation. The mode settings are shown with the
[MODE] key.
model family
A group of calculator models with similar hardware, software or compatibility. The TI-89, TI-92, TI-92
Plus and the (unreleased) Voyage 200 form a model family.
modifier key
A key which modifies the function of other keys. The modifier keys are [2nd], [DIAMOND], [SHIFT],
[alpha] (TI-89 only) and [HAND] (TI-92 Plus only).
most significant digit
Refers to the digit in a number with the greatest positional magnitude. For example, in the number
12345, '1' is the most significant digit. May be abbreviated MSD. The least significant digit is the digit
in the number with the least positional magnitude; in the number 12345, '5' is the least significant digit,
or LSD. For binary (base-2) numbers, the most significant digit is called the most significant bit (MSB),
and the least significant digit is called the least significant bit (LSB).
MSD; MSB See most significant digit
multiplication, implied See implied multiplication
native assembly
Describes assembly programs which need no shell. See also ASM.
14 - 11