CalAmp (NASDAQ: CAMP) and Cisco (NASDAQ: CSCO) offer investors two different ways to invest in the booming Internet of Things (IoT) market. CalAmp, which has a market cap of about $800 million, provides telematics solutions for the automotive and industrial markets -- helping companies track, analyze, and control cars and machines via its cloud services.Cisco, which has a market cap of over $200 billion, is the world's leading provider of network routers and ethernet switches.