The phrase "a host of devices" is correct and usable in written English.
It can be used to describe a large number or variety of devices available or being referred to in a particular context.
Example: "The new technology conference showcased a host of devices designed to improve everyday life."
Alternatives: "a multitude of devices" or "a variety of devices".
When medicine and engineering mix, the result is a host of devices for diagnosing, treating or monitoring disease.
Mini-computers such as the Raspberry Pi or micro-controllers like the Arduino platform are inspiring a new generation to get to grips with electronics, to try out new ideas and build a host of devices.
Because the OSD saves the recordings in the popular compressed video format MPEG-4 (pronounced EM-peg), the programs can be watched on a host of devices, including iPods and smartphones.
So much of the excitement and product innovation today centers on battery-powered, mobile computing — smartphones, tablets, and a host of devices based on digital sensors, like personal health monitors that track vital signs and calorie-burn rates.
In the olden days, passengers might use power to run portable DVD players that would deter them from paying for an in-flight movie, but today they will have a host of devices that they want to keep alive.
Security experts argue that not enough is being done to build security and privacy into IoT at these early stages, and to prove their point have hacked a host of devices, from connected baby monitors to automated lighting and smart fridges, as well as city wide systems such as traffic signals.
Modems, wireless handheld devices, MP3 players and a host of other devices rely on DSPs for connectivity.
The Apple device has also spawned a host of touchscreen devices from other handset manufacturers including HTC, Samsung and Motorola, all of which have eaten into Nokia's share of a smartphone market it once dominated.
There's no network breach, merely a host of insecure devices hijacked using simple methods such as scanning open networks for devices using factory-default passwords.
Its purpose is to demonstrate, with a host of audiovisual devices, how to save energy.
