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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9

Universal Binary
As Apple Computers make the transition from PowerPC processors to x86 (Intel) processors, software needs to be made compatible with either processor type, and this software is known as "universal binary." Universal binary is an executable file that can run natively on either processor type. When a universal binary software disc is placed in a drive on a computer, the OS detects the universal binary in the disc's header, and boots the appropriate software version depending on the processor in use. This allows software to run at full speed on either processor type with no impact on performance. No additional memory is needed for universal binary software, since only the appropriate copy of the software is loaded. One of the biggest differences between the PowerPC and Intel processors is how multi-byte data is stored. PowerPC chips store the most significant byte first and x86 chips store the least significant byte first. This is called "byte ordering," or "endian" format. PowerPCs use "big endian," while Intels (x86) use "little endian."

U

U-Boat

Umatic (1610/1630)

UART

UDF - Universal Disc Format

UDMA

Ultra High Frequency

UI

Ukelele

UL

Ultra160 SCSI

Ultra2 SCSI

Ultra2 Wide SCSI

Ultra ATA

Ultra SCSI

Ultrasonic

Ultra Wide SCSI

 Una Corda

Unbalanced

Unburst

Uncolored

Uncompressed

Undo

Unformatted Capacity

Uni-Vibe

Unidirectional

Uninstall

Uninstaller

Uninterruptible Power Supply

Unison

Unity Gain

Universal Binary

UNIX

Unobtanium

 UPC Barcode

Update

Upgrade

Upload

UPS

Upsampling

URL

USB

USB 2

USB Hub

USB Key

User Data

User Friendly

User Interface

User Preset

Utility

UV-22

     
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