Editing Network-attached storage (section)

== Implementation ==
The way manufacturers make NAS devices can be classified into three types:

# Computer-based NAS{{Spaced ndash}} using a computer (server level or a [[personal computer]]) with processors typically from Intel or AMD, installs FTP/SMB/AFP... software server. The power consumption of this NAS type is the largest, but its functions are the most powerful. Some large NAS manufacturers such as [[Synology]], [[QNAP Systems|QNAP systems]], and [[Asus]] make these types of devices. Max FTP throughput speed varies by computer [[Central processing unit|CPU]] and amount of RAM.
# Embedded-system-based NAS{{Spaced ndash}} using an ARM- or MIPS-based processor architecture and a [[Real-time operating system|real-time operating system (RTOS)]] or an [[embedded operating system]] to run a NAS server. The power consumption of this NAS type is fair, and functions in the NAS can fit most end-user requirements. [[Marvell Technology, Inc.|Marvell]], [[Oxford Instruments|Oxford]], and Storlink make chipsets for this type of NAS. Max FTP throughput varies from 20&nbsp;MB/s to 120&nbsp;MB/s.
# [[Application-specific integrated circuit|ASIC]]-based NAS{{Spaced ndash}} provisioning NAS through the use of a single ASIC chip, using hardware to implement TCP/IP and file system. There is no OS in the chip, as all the performance-related operations are done by hardware acceleration circuits. The power consumption of this type of NAS is low, as functions are limited to only support SMB and FTP. [[LayerWalker]] is the only chipset manufacturer for this type of NAS. Max FTP throughput is 40&nbsp;MB/s.