APT

APT is an acronym. It may refer to:

Computing and software

Entertainment and media companies

Advanced Packaging Tool

The Advanced Package Tool, or APT, is a free software user interface that works with core libraries to handle the installation and removal of software on the Debian Linux distribution and its variants. APT simplifies the process of managing software on Unix-like computer systems by automating the retrieval, configuration and installation of software packages, either from precompiled files or by compiling source code.

APT was originally designed as a front-end for dpkg to work with Debian's .deb packages, but it has since been modified to also work with the RPM Package Manager system via APT-RPM. The Fink project has ported APT to Mac OS X for some of its own package management tasks, and APT is also available in OpenSolaris.

Usage

There has been an apt program since version 1.0; apt is a collection of tools distributed in a package named apt. A significant part of apt is defined in a C++ library of functions; apt also includes command-line programs for dealing with packages, which use the library. Three such programs are apt, apt-get and apt-cache. They are commonly used in examples of apt because they are simple and ubiquitous. The apt package is of "important" priority in all current Debian releases, and is therefore installed in a default Debian installation. Apt can be considered a front-end to dpkg, friendlier than the older dselect front-end. While dpkg performs actions on individual packages, apt tools manage relations (especially dependencies) between them, as well as sourcing and management of higher-level versioning decisions (release tracking and version pinning).

Asia-Pacific Telecommunity band plan in the 700 MHz band

The Asia-Pacific Telecommunity (APT) band plan is a type of segmentation of the 698–806 MHz band (usually referred to as the 700 MHz band) formalized by the APT in 2008-2010 and specially configured for the deployment of mobile broadband technologies (e.g. most notably Long Term Evolution, LTE). This segmentation exists in two variants, FDD and TDD, that have been standardized by the 3rd Generation Partnership Project (3GPP) and recommended by the International Telecommunications Union (ITU) as segmentations A5 and A6, respectively. The APT band plan has been designed to enable the most efficient use of available spectrum. Therefore, this plan divides the band into contiguous blocks of frequencies that are as large as possible taking account of the need to avoid interference with services in other frequency bands. As the result, the TDD option (segmentation A6) includes 100 MHz of continuous spectrum, while the FDD option (segmentation A5) comprises two large blocks, one of 45 MHz for uplink transmission (mobile to network) in the lower part of the band and the other also of 45 MHz for downlink transmission in the upper part. As defined in the standard, both FDD and TDD schemes for the 700 MHz band include guard bands of 5 MHz and 3 MHz at their lower and upper edges, respectively. The FDD version also includes a center gap of 10 MHz. The guardbands serve the purpose of mitigating interference with adjacent bands while the FDD center gap is required to avoid interference between uplink and downlink transmissions. The two arrangements are shown graphically in figures 1 and 2.

Ditto

A ditto, or ditto mark, is a typographic character.

Ditto may also refer to:

In printing

In popular culture

People

Others

Cassie (album)

Cassie is the self-titled debut album by American recording artist Cassie, released on August 8, 2006 by NextSelection Lifestyle Group, Bad Boy Records, and Atlantic Records. Cassie was discovered by record producer Ryan Leslie, who helped Cassie record demo tapes. After Cassie was signed by P. Diddy, the founder of Bad Boy Records, she continued to work with Leslie who produced the entire album. Musically, Cassie is mainly a R&B, hip hop and pop album with urban, pop rock and contemporary R&B styles, containing "looming synthesizer patterns" and "ice-cream-truck melod[ies] to give it a slightly twisted and threatening edge," as well as "flippant playfulness."

The album was well-received critically and praised for its production. In addition to being called "confection," it drew comparisons to Ashanti and Ciara. Cassie debuted at number four on the US Billboard 200 with 100,374 copies sold in its first week. It stayed in the top twenty for two weeks. As of April 2008, the album had sold 321,000 copies in the US.

Ditto (drive)

The Ditto drive series was a proprietary magnetic tape data storage system released by Iomega during the 1990s. It was marketed as a backup device for personal computers.

They were released in several capacities ranging from the original Ditto 250 drive (250MB compressed capacity per cartridge) to the DittoMAX drive, a compatible format with compressed capacities up to 10GB per cartridge. This was accomplished by increasing the physical size of the cartridge (making it longer). Some versions of the drive were also able to read Travan-type tapes.

Technical aspects

Ditto internal drives were connected through the floppy drive channel and used MFM encoding to store data (the same method as on older floppy drives). An ISA accelerator card called the Ditto Dash, providing higher speed than a stock floppy controller, was also available.

Ditto external drives were connected to the parallel port and offered a print-through port which allowed a printer to operate while daisy-chained to the Ditto drive. This is a feature also commonly found on an Iomega ZIP drive. Usage of the parallel port allowed for transfer speeds (in EPP mode) of a maximum 1 MB/s.