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Personal Animation Recorder
PAR, the Personal Animation Recorder, is an analog video playback device for Amiga computers built by DPS (Digital Processing Systems, Canada) in 1993. It fits into an Amiga's Zorro II/III slot available in the Amiga 2000/3000/4000 models. It's capable of PAL or NTSC full-frame realtime or single-frame playback, using dedicated harddiscs connected to the board's IDE controller. Additional devices for the PAR include the DPS AD-3000 (PAL) video capture board, the DPS Personal TBC IV (NTSC) video capture and time-base-corrector board, and the Sunrize AD-516 audio recording and playback board. Features Hard drive connected to the board is mounted as the device DDR: in AmigaDOS. The system was compatible with tape backups and could connect to other video equipment such as the Video Toaster and time base correctors (TBCs). This required users to have knowledge of video termination for proper setup. The device utilized Y R/Y B-Y connectors for Betacam recording.{{Cite magazine , last=W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amiga
Amiga is a family of personal computers produced by Commodore International, Commodore from 1985 until the company's bankruptcy in 1994, with production by others afterward. The original model is one of a number of mid-1980s computers with 16-bit or 16/32-bit processors, 256 KB or more of RAM, mouse-based GUIs, and significantly improved graphics and audio compared to previous 8-bit systems. These include the Atari ST as well as the Macintosh 128K, Macintosh and Acorn Archimedes. The Amiga differs from its contemporaries through custom hardware to accelerate graphics and sound, including sprite (computer graphics), sprites, a blitter, and four channels of sample-based audio. It runs a pre-emptive multitasking operating system called AmigaOS, with a desktop environment called Workbench (AmigaOS), Workbench. The Amiga 1000, based on the Motorola 68000 microprocessor, was released in July 1985. Production problems kept it from becoming widely available until early 1986. While ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AmigaDOS
AmigaDOS is the disk operating system of the AmigaOS, which includes file systems, file and directory manipulation, the command-line interface, and file Redirection (computing), redirection. In AmigaOS 1.x, AmigaDOS is based on a TRIPOS port by MetaComCo, written in BCPL. BCPL does not use native pointer (computer programming), pointers, so the more advanced functionality of the operating system was difficult to use and error-prone. The third-party ''AmigaDOS Resource Project'' (ARP, formerly the ''AmigaDOS Replacement Project''), a project begun by Amiga developer Charlie Heath, replaced many of the BCPL utilities with smaller, more sophisticated equivalents written in C (programming language), C and assembly language, assembler, and provided a wrapper library, arp.library. This eliminated the interfacing problems in applications by automatically performing conversions from native pointers (such as those used by C or assembler) to BCPL equivalents and vice versa for all AmigaDOS ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tape Drive
A tape drive is a data storage device that reads and writes data on a magnetic tape. Magnetic-tape data storage is typically used for offline, archival data storage. Tape media generally has a favorable unit cost and long archival stability. A tape drive provides sequential access storage, unlike a hard disk drive, which provides direct access storage. A disk drive can move to any position on the disk in a few milliseconds, but a tape drive must physically wind tape between reels to read any one particular piece of data. As a result, tape drives have very large average access times. However, tape drives can stream data very quickly off a tape when the required position has been reached. For example, Linear Tape-Open (LTO) supports continuous data transfer rates of up to 360 MB/s, a rate comparable to hard disk drives. Design Magnetic-tape drives with capacities of less than one megabyte were first used for data storage on mainframe computers in the 1950s. , capac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Toaster
The NewTek Video Toaster is a combination of hardware and software for the editing and production of NTSC standard-definition video. The plug-in expansion card initially worked with the Amiga 2000 computer and provides a number of BNC connectors on the exposed rear edge that provide connectivity to common analog video sources like VHS VCRs. The related software tools support video switching, luma keying, character generation, animation, and image manipulation. For a few thousand U.S. dollars, the hardware and software provided a video editing suite in the early 1990s that rivaled the output of contemporary professional systems costing ten times as much. It allowed small studios to produce high-quality material and resulted in a cottage industry for video production not unlike the success of the Macintosh in the desktop publishing ( DTP) market only a few years earlier. The Video Toaster won the Emmy Award for Technical Achievement in 1993. Other parts of the original soft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time Base Correction
Time base correction (TBC) is a technique to reduce or eliminate errors caused by mechanical instability present in analog recordings on mechanical media. Without time base correction, a signal from a videotape recorder (VTR) or videocassette recorder (VCR), cannot be mixed with other, more time-stable devices such as character generators and video cameras found in television studios and post-production facilities. Time base correction counteracts errors by buffering the video signal as it comes off the videotape at an unsteady rate, and releasing it after a delay at a steady rate. A sync generator provides the timing reference for all devices in the system. By adjusting the delay using a waveform monitor, the corrected signal can be made to match the timing of the other devices in the system. If all of the devices in a system are adjusted so their signals meet the video switcher at the same time and at the same rate, the signals can be mixed. Though external TBCs are often use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Betacam
Betacam is a family of half-inch professional videocassette products developed by Sony in 1982. In colloquial use, ''Betacam'' singly is often used to refer to a Betacam camcorder, a Betacam tape, a Betacam video recorder or the format itself. All Betacam variants from analog Betacam, Betacam SP and Digital Betacam, HDCAM and HDCAM SR use the same shape videocassettes, meaning vaults and other storage facilities do not have to be changed when upgrading to a new format. The cassette shell and case for each Betacam cassette is colored differently depending on the format, allowing for easy visual identification. There is also a mechanical key that allows a video tape recorder to identify which format has been inserted. The cassettes are available in two sizes: S (short or small) and L (long or large). The Betacam camcorder can only load S magnetic tapes, while television studio sized video tape recorders (VTR) designed for video editing can play both S and L tapes. The format s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amiga World
''Amiga World'' was a magazine dedicated to the Amiga computer platform. It was a prominent Amiga magazine, particularly in the United States, and was published by Massachusetts-based IDG Publishing from 1985 until April 1995. The first several issues were distributed before the computer was available for sale to the public. Issue 3, (Vol 2 No 1, January 1986) featured the artist Andy Warhol. The headquarters of the magazine later moved to Peterborough, New Hampshire. See also * '' RUN'', the parent magazine from which ''Amiga World'' was spun off. * ''Amiga Survivor ''Amiga Survivor'' was a monthly computer magazine published by Crystal Software. The first issue was published in June/July 1998. This publication originally started as a black and white A5 size fanzine A fanzine (blend word, blend of ''fan ( ...'' References External links Amiga World Animation Video Vol. 1 from 1990 on youtube.com 1985 establishments in Massachusetts 1995 disestablishments in New Hamps ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Videocassette Recorder
A videocassette recorder (VCR) or video recorder is an electromechanical device that records analog audio and analog video from broadcast television or other AV sources and can play back the recording after rewinding. The use of a VCR to record a television program to play back at a more convenient time is commonly referred to as ''time shifting''. VCRs can also play back prerecorded tapes, which were widely available for purchase and rental starting in the 80s and 90s, most popularly in the VHS videocassette format. Blank tapes were sold to make recordings. VCRs declined in popularity during the 2000s and in 2016, Funai Electric, the last remaining manufacturer, ceased production. History Early machines and formats The history of the videocassette recorder follows the history of videotape recording in general. Ampex introduced the quadruplex videotape professional broadcast standard format with its Ampex VRX-1000 in 1956. It became the world's first commercially succe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
24-bit Color
Color depth, also known as bit depth, is either the number of bits used to indicate the color of a single pixel, or the number of bits used for each color component of a single pixel. When referring to a pixel, the concept can be defined as bits per pixel (bpp). When referring to a color component, the concept can be defined as bits per component, bits per channel, bits per color (all three abbreviated bpc), and also bits per pixel component, bits per color channel or bits per sample. Modern standards tend to use bits per component, but historical lower-depth systems used bits per pixel more often. Color depth is only one aspect of color representation, expressing the precision with which the amount of each primary can be expressed; the other aspect is how broad a range of colors can be expressed (the gamut). The definition of both color precision and gamut is accomplished with a color encoding specification which assigns a digital code value to a location in a color space. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ANIM
ANIM is a file format, used to store digital movies and computer generated animations (hence the ANIM name), and is a variation of the ILBM format, which is a subformat of Interchange File Format. Main Features Anim FileTypes Known filetypes for Anim into AmigaOS are: Anim1, Anim2, Anim3, Anim5 and Anim7. Anim1 to Anim3 did not support audio. Anim 5 and Anim7 should be able to contain Audio Data, being a complete movie animation file format. Additions to IFF Standard In addition to the normal ILBM chunks, ANIM filetype also defines: * ANHD (ANimation HeaDer) * DLTA - stores changes between frames, with various compression methods supported to make use of the redundancy between frames. Compression modes: * ANIM-0 ILBM BODY (no delta compression) * ANIM-1 ILBM XOR * ANIM-2 Long Delta mode * ANIM-3 Short Delta mode * ANIM-4 General Delta mode * ANIM-5 Byte Vertical Delta mode (most common) * ANIM-6 Stereo Byte Delta mode (stereoscopic frames) * ANIM-7 Anim-5 compression using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MPEG-1
MPEG-1 is a Technical standard, standard for lossy compression of video and Audio frequency, audio. It is designed to compress VHS-quality raw digital video and CD audio down to about 1.5 Mbit/s (26:1 and 6:1 compression ratios respectively) without excessive quality loss, making video CDs, digital Cable television, cable/Satellite television, satellite TV and digital audio broadcasting (DAB) practical. Today, MPEG-1 has become the most widely compatible lossy audio/video format in the world, and is used in a large number of products and technologies. Perhaps the best-known part of the MPEG-1 standard is the first version of the MP3 audio format it introduced. The MPEG-1 standard is published as International Organization for Standardization, ISO/International Electrotechnical Commission, IEC 11172, titled ''Information technology—Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s''. The standard consists of the follow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JPEG
JPEG ( , short for Joint Photographic Experts Group and sometimes retroactively referred to as JPEG 1) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable trade off between storage size and image quality. JPEG typically achieves 10:1 compression with noticeable, but widely agreed to be acceptable perceptible loss in image quality. Since its introduction in 1992, JPEG has been the most widely used image compression standard in the world, and the most widely used digital image format, with several billion JPEG images produced every day as of 2015. The Joint Photographic Experts Group created the standard in 1992, based on the discrete cosine transform (DCT) algorithm. JPEG was largely responsible for the proliferation of digital images and digital photos across the Internet and later social media. JPEG compression is used in a number of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
