1. Cassette tape
2. Floppy diskettes
3. Hard disk
4. Zip drive diskettes
"Seek time" refers to the amount of time it takes for a storage device, such as a hard drive, to locate and access specific data on the disk. It is measured in milliseconds and is an important factor in determining the overall performance of the storage device. Lower seek times indicate faster access to data.
A CI (Common Interface) module is a hardware device that allows a digital television or set-top box to decrypt encrypted channels by accepting a conditional access module (CAM) inserted into it. The CAM can be used to access subscription or pay-per-view content that requires decryption. The CI module provides the necessary decryption keys to access the content.
A saline lock is a device that allows intermittent access to a patient's vein without constantly infusing fluids. It consists of a catheter connected to a port that can be capped when not in use, reducing the risk of infection compared to a continuously running IV line.
A mass-memory unit is a type of storage device that is used to store large amounts of data in various electronic devices such as computers and digital cameras. It typically has a higher storage capacity compared to conventional memory units like RAM and can retain data even when the device is turned off. Examples of mass-memory units include hard drives, solid-state drives, and memory cards.
Registers: Fastest and smallest memory, typically located within the CPU for immediate access to data. Cache: Small and faster memory located close to the CPU, used to store frequently accessed data for quick retrieval. Main Memory (RAM): Larger and slower memory that holds data and instructions currently being processed by the CPU. Secondary Storage (Hard Drive, SSD): Largest and slowest memory that stores data persistently, even when the device is powered off.
RAM (Random Access Memory) storage devices typically has the fastest transfer rate.
name one access secondary device?
Direct access storage device
A random access storage device, like a hard drive or SSD, can access information faster because it allows for direct retrieval of data from any location without the need to read through other data sequentially. In contrast, a sequential storage device, such as magnetic tape, requires the system to process data in order, often resulting in delays as it moves to the desired location. This characteristic of random access significantly enhances speed and efficiency when retrieving specific pieces of information.
Online file storage allows individuals or groups to store files, photos, and documents without use of an external file saving device. Users can access stored information for retrieval anywhere an internet connection is available.
access
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magnetic tape
access time
direct access storage device.
RAM (Random Access Memory) is the fastest fast. But no device can locate a data item exactly immediately.
direct memory access (DMA)