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In this section we will first, identify common backing storage media and their associated devices, second identify typical uses of those storage media, including types of access (e.g. serial/sequential, direct/random) and access speeds, and third describe the comparative advantages and disadvantages of using these different backing storage media.
30 maj 2024 · Revision notes on Types of Digital Devices for the Edexcel IGCSE ICT syllabus, written by the ICT experts at Save My Exams.
3 maj 2024 · Storage devices are non-volatile secondary storage, that retain digital data within a computer system. They provide a means of storing, accessing, and retrieving data, which can include software applications, documents, images, videos, and more. There are 3 types of storage device: Magnetic. Solid State. Optical. Magnetic storage. Magnetic ...
A direct (or 'random') access storage device is one that stores files so that the can be instantly accessed- there is no need to search through other files to get to the one you want
Physical components or materials on which data is stored are called storage media. Hardware components that read/write to storage media are called storage devices. Two main categories of storage technology used today are magnetic storage and optical storage.
devices. Units such as bytes, kilobytes and megabytes are used to describe a storage device's capacity. Other factors such as speed of data access, cost and portability will also determine which storage device is the most appropriate one to use for a particular application. Immediate Access Store: RAM ROM Floppy Disk
u Currently --- “Management of I/O devices” l Last lecture: Interacting with I/O devices, device drivers l This lecture: storage devices u Then, file systems • File system structure • Naming and directories • Efficiency and performance •Reliability and protection 2 Storage Devices Magnetic disks
