MEMORY and STORAGE Flashcards
memory
consists of electronic components that store instructions waiting to be executed
memory address
where bytes of data is stored in memory identified by
random access memory
aka main memory; it loses its content when power is removed
read only memory
its contents are not lost when power is removed
firmware
contains permanently written data or instructions
memory access time
amount of time it takes to read data or instructions from memory
memory modules
small circuit board. has single inline and double inline
programmable rom
one time programmable; programmed by user using external device
erasable rom
reusable, content can be erased with UV light, programmable using external device
electrically erasable prom
clears entire blocks with single operation, programmable in place
external memory
aka secondary storage; records or retrieves item to from storage media
storage capacity
number of bytes that a storage medium holds
storage access time
measures the amount of time it takes a storage device to locate an item
transfer rate
the speed with which the data and instructions are transferred to/from a storage device
hard disk
storage device that contains one or more flexible, circular platters that use magnetic particles to store data and instructions
solid state drive
flash memory storage device that has its own processor to manage its storage
flash memory storage
type of nonvolatile memory that can be erased electronically and rewritten; its lack of moving parts makes it more durable and shock resistant
optical disc
storage medium that consists of a flat, round, portable disc made of metal, plastic and lacquer
usb flash drives
aka thumb drive; plugs in a usb port on a computer
memory card
removable flash memory storage inserted into a slot in a computer
enterprise storage
high-capacity storage solutions designed for business to manage, store, and protect large volumes of data
network attached storage
file-level storage solution that connects to a network, allowing multiple devices to access shared files
storage area network
block-level storage solution that connects servers to a dedicated storage network used in large enterprises
cloud storage
online storage solution that allows business and individuals to store data on remote servers, accessible via the internet
