Quadra
Quadra may refer to:
Macintosh Quadra 630
The Macintosh Quadra 630 (Codenames: "Crusader", "Show Biz", "Show & Tell"; also sold with minor variations as the Macintosh LC 630 in the educational market and as the Macintosh Performa 630 in the consumer market) is a personal computer that is a part of Apple Computer's (now Apple Inc.) Quadra series of Macintosh computers. It was introduced in July 1994, replacing the Quadra 610, and was discontinued in October 1995 with no direct replacement; however, the Power Macintosh 6200 and its Performa versions took a very similar position in Apple's product lineup later, and continued using the new case introduced with the 630. The case design made the system's motherboard accessible by opening a cover at the bottom rear of the case and sliding out a drawer that the motherboard was mounted on.
The 630 was the last Quadra Macintosh introduced, though the earlier 950 remained available longer. A big change compared to previous Macintosh models was the choice of the internal hard drive interface: conforming to the standards of the IBM PC compatible platform, cheaper, but slower IDE drives were used instead of SCSI for the first time. An external SCSI port was still available on the machines, and the CD-ROM used SCSI internally, but the 630 used an older controller that was much slower than the ones used in higher-end Macs of the time.
Digital
Digital usually refers to something using digits, particularly binary digits.
Technology, the Internet, and computing
People
Digital (Joy Division song)
"Digital" is a song by the band Joy Division, originally released on the 1978 double 7" EP entitled A Factory Sample. It was later featured on the compilation albums Heart and Soul and Still.
The track was recorded in the band's first session with Martin Hannett as producer. Recording took place at Cargo Studios in Rochdale, Lancashire on 11 October 1978.
It was the last song ever performed by Joy Division, as it was the final song of the last gig recorded on 2nd May 1980 at Birmingham University, just before the suicide of the band's singer Ian Curtis. The entire concert was released on the Still album in 1981, and is also notable for including one of only three known recordings of Ceremony.
The song features in the films 24 Hour Party People and Control, where Tony Wilson sees the band play for the first time.
The song was used prominently by the BBC during their coverage of the 2005 Six Nations rugby tournament. Not only was it used in the 2005 Six Nations championships, but it is still used in the BBC's coverage of all international rugby. It is also used for Sky's coverage of the UEFA Champions League, as well as being used in the video game FIFA 06.
Digital television
Digital television (DTV) is the transmission of audio and video by digitally processed and multiplexed signal, in contrast to the totally analog and channel separated signals used by analog television. Digital TV can support more than one program in the same channel bandwidth. It is an innovative service that represents the first significant evolution in television technology since color television in the 1950s. Several regions of the world are in different stages of adaptation and are implementing different broadcasting standards. Below are the different widely used digital television broadcasting standards (DTB):
Podcasts:
