** Pope Pius X

** X is reflexive.

** for all f in X ′ there exists x in X with ǁxǁ ≤ 1, so that f ( x ) = ǁfǁ.

** Louis X ( 1314 – 1316 )

** Charles X ( 1824 – 1830 )

** Console ( Mac OS X ), a log viewer on OS X

** Louis X the Quarreller, 1314 – 1316

** Leather Goddesses of Phobos 2: Gas Pump Girls Meet the Pulsating Inconvenience from Planet X!

** 2007 – 2009 X

** XNU, from the Mac OS X operating systems

** Knuth's Algorithm X

** X PixMap for portable icons

** Mac OS X Calculator

** Planet X < sup > 1 </ sup >

** publickey: a method for public key-based authentication, usually supporting at least DSA or RSA keypairs, with other implementations also supporting X. 509 certificates.

** If O takes center ( best move for him ), X should take the corner opposite the original, and proceed as detailed above.

** If O plays a corner or side-middle first, X is guaranteed to win:

** Ogg ( Vorbis ) vs. Lame ( MP3 )-a comparison at 128 .. 350kbit / s, Vorbis_1. 0beta4 X Lame_3. 88, year 2001

A space X can be embedded into the double dual X ** by

Thus T: X → X ** is an injective linear mapping, though it is not surjective unless X is reflexive.

** writing to or reading from a device control register

** data register, e. g. " D0 "

** address register, e. g. " A6 "

** Indexed register indirect with 8-bit signed offset e. g. 8 ( A0, D0 ) or 8 ( A0, A1 )

** 24-bit shift register, clockable at 2 frequencies

** Two separate register files, which could be quickly switched, to speed up response to interrupts

** set a register ( a temporary " scratchpad " location in the CPU itself ) to a fixed constant value

** move data from a memory location to a register, or vice versa.

** add, subtract, multiply, or divide the values of two registers, placing the result in a register, possibly setting one or more condition codes in a status register

** perform bitwise operations, taking the conjunction and disjunction of corresponding bits in a pair of registers, or the negation of each bit in a register

** The early MMX instruction set shared a register file with the floating-point stack, which caused inefficiencies when mixing floating-point and MMX code.

** to store the registers and parts of the state-machines used in some microprocessors ( see register file )

** Ted Hoff and Stan Mazor and Larry Potter ( IBM Chief Scientist of IBM ) proposed a single-chip implementation of the CTC architecture, using RAM register memory rather than shift register memory, and also added a few instructions and interrupt facility.

** Administering and maintaining the register of England's listed buildings, scheduled monuments, registered battlefields, conservation areas and protected parks and gardens.

** A vertical scroll register

** Vertical and horizontal display offset register

** a horizontal scroll register

** The organization Citizens for Civil Discourse has lobbied Congress to close this loophole by developing a National Political Do Not Call Registry where voters can register their phone numbers and ask politicians to take the " Do Not Contact Pledge ".

** Compute the effective address when the base register is available, and place it in the load / store buffer

** Some processors contain registers that may only be used to hold an address or only to hold numeric values ( in some cases used as an index register whose value is added as an offset from some address ); others allow registers to hold either kind of quantity.

** Memory buffer register

** Memory data register