Cisco IOS (Internetwork Operating System) is a proprietary
operating system that runs on most Cisco Systems
routers and switches. The core function of Cisco IOS is to
enable data communications between network nodes. Nexus OS runs on Cisco's Nexus family of data center switches.
Cisco Software Engineer develops, manufactures and sells networking
hardware, software, telecommunications equipment and other high-technology
services and products. They pioneered the concept of a local area network (LAN)
being used to connect geographically disparate computers over a multiprotocol
router system.
Cisco Networking
Software (Cisco IOS, Cisco IOS XE, Cisco IOS XR, and Cisco NX-OS) is the world's most widely
deployed networking software. It integrates cutting-edge technology,
business-critical services, and broad hardware platform support
Cisco IOS is a
monolithic operating system running directly on the hardware while IOS XE is a combination of a linux kernel and a
(monolithic) application (IOSd) that runs on top of this kernel.
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