WebCapacity - how much data can the medium hold? Speed of access - how quickly can data be transferred to and from the medium? ... Backups, archives, copies of data: Blu-ray-ROM/R: Optical: 50 GB: Slow: WebData must be accessed sequentially (serially) on a tape. This makes it slower to access since each record has to be read one by one until the correct record is reached. Once the correct...
Common types of secondary storage - Storage - BBC Bitesize
WebMay 19, 2024 · Blu-ray drives are typically reserved for devices with high-definition display capabilities, including high-end computers and the PlayStation 3 video game console. Blu-ray drives and discs can process extremely large amounts of data: Blu-ray discs have a standard capacity of 25 GB but can store more than 50 GB of data on a Blu-ray Dual … WebFeb 10, 2006 · The different methods put Blu-ray at a staggering advantage in the future, but currently 1x and 2x Blu-ray drives trudge along compared to a 12x DVD drive, which gathers information at a... rostow stages of economic growth ppt
Chapter 5 Storage Devices - FTMS
WebMay 21, 2024 · This means that more data can be recorded using the same surface area with a Blu-ray disc than with the other optical disc formats. As a result a standard Blu … WebCD, DVD and Blu-Ray drives are optical storage devices. Binary data is stored as changes to the texture of the disc’s surface, sometimes thought of as microscopic pits and bumps. These ‘bumps’ are located on a continuous spiral track, starting at the centre of the disc. Whilst the disc is rotating at a constant speed, a laser is pointed ... WebA full backup of data that can't be compressed would use around 8-9 tapes. Each tape is 1.5TB of compressed data (video/music/pics) up to 3TB of uncompressed (text documents). A set of 5 new tapes runs between $50-75 if you keep your eyes open on Ebay. I split my data up based on what it is I'm backing up.. story of reem