Happy Puppy Vintage Computers

LOREX DXR109081

The Lorex DXR109081 9-channel Digital Video Recorder with Removable 80 GB HDD combines a nine-channel multiplexer with a DVR (digital video recorder. The DXR109081 is a cost effective DVR that can store hours of video on a HDD (hard disk drive) without image degradation or tape-swapping, making it an ideal replacement for aging time-lapse VCRs. This DVR includes many features, such as multiple easy searching settings, excellent recording quality, fast or slow forward and reverse searching, and others. Easy to set-up and operate, the DXR109081 allows full-screen or simultaneous viewing of up to nine channels to meet most any need, be it professional security surveillance or business-process monitoring, or school or home applications. NTSC/EIA and PAL/CCIR compatible, the Lorex DXR109081 utilizes Wavelet video compression, and achieves a maximum resolution of 704 by 564 effective pixels. The DXR109081 provides you with date and time or event-index searching, and password protection for security purposes. This DVR has a built-in 80 GB (Gigabyte) removable IDE-type (Integrated Drive Electronics) HDD that allows up to 30-hours of real-time and 1,800 hours of total recording. This unit features four adjustable video-quality settings and seven selectable record settings, as well as four RCA audio inputs and two RCA audio outputs. The unit also features an alarm input/output, motion detection, alarm display and 2x zoom capability. The DXR109081 includes a BNC (Bayonet Neill-Concelman, RF-type) composite video nine-channel input, as well as a BNC composite video nine-channel output connection. This unit also includes an event log, video-loss detection able to record 160 events on each channel, and a real-time counter. For additional alarm or control functionality, the DXR109081 has a RS-232 connection and RS-485 communication protocol to allow you to connect an alarm block or remotely control the system via a PC. Powered by 100- to 240-volts AC via an auto-switching adapter, the Lorex DXR109081 has an emergency back-up battery built-in, and an operating temperature of 10- to 40-degrees Celsius. Technical Features: Compression format: Wavelet, NTSC/EIA and PAL/CCIR compatible Video inputs/outputs: BNC 9-channel composite video-in, BNC 9-channel composite video-out Resolution: 704x564 full-screen, 352x282 with 4-channels, 224x188 with 9-channels HDD space: one 80-GB IDE-type drive (removable for upgrading) Equivalent recording time: 30-hours real-time, 1,800-hours total For ongoing surveillance or monitoring, the Lorex DXR109081 is an excellent solution. With large amounts of storage and easy data back-up capabilities, you won't lose any critical video segments, and with its rich feature set, you gain valuable functionality across your surveillance system as a whole. Note: This system is compatible with Lorex's optional L4202 network video server for DVR viewing and control, and is rack-mountable for multiple-device installations. About Digital Video Recorders A Digital Video Recorder (DVR) takes video signals from security cameras and converts the video stream into a digital format for storage on an internal hard drive. A DVR also provides a user interface to remotely manage many functions of the video files and cameras, including motion detection and pan/tilt/zoom features. At a minimum, a DVR should allow multiple users to view multiple cameras remotely. Effective video compression is one of the most important considerations when looking at DVRs. The most common video compression formats used in video surveillance are M-JPEG and MPEG-4. While proprietary compression technologies may provide superior quality, their lack of compatibility with Windows-based operating systems may become an issue for archival purposes. Issues of frame rate, resolution, disk size, motion detection, compression ratio, and camera noise all effect the storage capacity of a video surveillance system. High resolution is ideal to capture details, while high frame rates are needed to capture events. Frame rates of less than 20 frames per second tend to be jerky, while rates of 20 - 30 frames per second can be adequate for most surveillance needs. What's in the Box DXR109081 digital video recorder, hard disk drive in cartridge, power adapter and cord, 2 keys for hard drive cartridge, and manual.

Archival Grade DVD-R media to preserve your family photos and home movies as well as critical corporate data. Each disc is manufactured using proprietary unique dual reflective layers to maximize both compatibility and longevity. To further extend media lifetime, Verbatim UltraLife DVDs contain a hard coating on the recording side to protect the discs from scratches.

UltraLife Gold Archival Grade DVD-R is designed to preserve critical corporate data, family photos and home movies. Offers 4.7GB and a recording speed of 8X. Each disk is manufactured using proprietary unique dual reflective layers to maximize both compatibility and longevity. Gold layer maximizes disk lifetime by protecting data from corrosion. Silver layer delivers high reflectivity and broad read/write compatibility. Hard coating protects recording surface against scratches and rough handling. DVD-R also offers patented Verbatim azo dye technology. The combination of MKM''s patented Metal AZO DVD recording dye, revolutionary Dual Reflective Layer technology and proprietary hard coating allows UltraLife archival-grade DVD-R disks to deliver longevity and performance without sacrificing compatibility.

Stock up on DVD-Rs for backing up your more important data--family photos, home movies, corporate data, and so on--with this spindle from Verbatim. Stock up on DVD-Rs designed for more important data--family photos, home movies, corporate data, etc. Spindle of 50 discs. Preserve Your Critical Data Look to Verbatim UltraLife Gold Archival Grade DVD-R media to preserve your critical data. Each disc is manufactured using proprietary unique dual reflective layers to maximize both compatibility and longevity. To further extend media lifetime, Verbatim UltraLife DVDs contain a hard coating on the recording side to protect the discs from scratches. Long Archival Life Verbatim's proprietary dual reflective layer technology is comprised of a silver layer for broad compatibility and a gold layer for long archival life. The highly reflective silver layer allows the UltraLife DVD-R disc to look like a standard silver disc to DVD drives and recorders. This feature provides a low initial error rate after recording, important for long archival life, and the same drive read/write compatibility as standard silver-only discs. Corrosion-Resistant The gold reflective layer, naturally resistant to corrosion, prevents oxygen from coming through the DVD bonding material and corroding the silver reflective layer. Silver oxidation can be a primary factor which limits the lifetime of DVD media. The combination of MKM's patented Metal AZO DVD recording dye, revolutionary Dual Reflective Layer technology and proprietary hard coating enables Verbatim UltraLife archival-grade DVD-R discs to deliver new levels in longevity and performance without sacrificing compatibility. These discs are built to last as long as 100 years, with proper environmental control. What's in the Box Verbatim 95355 50-Disc Spindle

Data Cartridge - DAT DAT 160 - 80GB (Native)/160GB (Compressed) - 1 Pack

The MAM Gold Archive Grade DVD-R is designed for applications requiring long-term storage of sensitive data, video or music files. The reflective layer is comprised of 24 karat gold, which allows maximum resistance to chemical breakdown -- one of the major causes of disc failure. Along with choosing the right recording dye material and bonding agent (Note: A DVD-R is made of two polycarbonate discs bonded together) the long-term stability of the reflective layer is crucial. Reflective layers using your standard silver surface are subject to oxidation (rust) over a long period of exposure to moisture. Unlike silver jewelry, a gold ring won't rust and neither will the gold reflective layer in this disc. In optical discs, the use of gold can triple the life of a standard disc. Preliminary tests show that the MAM Gold Archive Grade? DVD can last significantly longer than ordinary silver recordable DVD discs. Although tests are currently underway and results will soon be available, we can assume from our experience with gold layer CD-R that the expected life of these discs will be similar. The MAM DVD is offered as the long awaited companion to the MAM Archive Grade Gold CD-R, which has an expected lifetime of 300 years and has earned a reputation as the highest quality storage media available today. This disc has a gold MAM-A "Diamond Coat" scratch resistant surface, hub printable top surface, and a 8x recording surface. It will work with Rimage and CopyPro Thermal Printers.

The focus of this dissertation is to provide scalable solutions for problems unique to chunk-based deduplication. Chunk-based deduplication is used in backup and archival storage systems to reduce storage space requirements. We show how to conduct similarity-based searches over large repositories, and how to scale out these searches as the repository grows; how to deduplicate low-locality file-based workloads, and how to scale out deduplication via parallelization, data and index organization; how to build a unified deduplication solution that can adapt to tape-based and file-based workloads; and, how to introduce strategic redundancies in deduplicated data to improve the overall robustness of the system. Our scalable similarity-based search solution finds for an object, highly similar objects from within a large store by examining only a small subset of its features. We show how to partition the feature index to scale out the search, and how to select a small subset of the partitions (less than 3%), independent of object size, based on the content of query object alone to conduct distributed similarity-based searches. We show how to deduplicate low-locality file-based workloads using Extreme Binning. Extreme Binning uses file similarity to find duplicates accurately and makes only one disk access for chunk lookup per file to yield reasonable throughput. Multi-node backup systems built with Extreme Binning scale gracefully with the data size. Each backup node is autonomous---there is no dependency between nodes, making house keeping tasks robust and low overhead. We build a 'unified deduplication' solution that can adapt and deduplicate a variety of workloads. We have workloads consisting of large byte streams with high-locality, and workloads made up of files of varying sizes without any locality between them. There are separate deduplication solutions for each kind of workload, but so far no unified solution that works well for all. Our unified deduplication solution simplifies administration---organizations do not have to deploy dedicated solutions for each kind of workload---and, it yields better storage space savings than dedicated solutions because it deduplicates across workloads. Deduplication reduces storage space requirements by allowing common chunks to be shared between similar objects. This reduces the reliability of the storage system because the loss of a few shared chunks can lead to the loss of many objects. We show how to eliminate this problem by choosing for each chunk a replication level that is a function of the amount of data that would be lost if that chunk were lost. Experiments show that this technique can achieve significantly higher robustness than a conventional approach combining data mirroring and Lempel-Ziv compression while requiring about half the storage space.