HVAC COOLING LOAD CALCULATIONS AND PRINCIPLES. Sensible Heat Gain â is the energy added to the space by conduction, convection and/or radiation. Latent Heat Gain â is the energy added to the space when moisture is added to the space by means of vapor.
Rise of USB. Developed by a consortium of companies made up of Intel, Compaq, Microsoft, Sony, DEC, IBM, and Northern Telecom, the Universal Serial Bus (USB) was introduced in January 1996. At that time, the USB 1.0 standard was capable of delivering a transfer rate of 12 Mbit/s. In April of 2000, USB 2.0 was introduced with a transfer rate of 480 Mbit/s. More recently, the USB 3.0 standard reaches transfer rates of 4.8 Gbit/s.
The ubiquity of USB has already assisted in the demise of one Apple-led interconnect, FireWire, whose downfall began in similar fashion to today. FireWire was first phased out in 2008 in Apple's consumer laptops â which is exactly what the new MacBook is â and then disappeared from the Pro lineup within four years. Coincidentally, it was Thunderbolt that stepped into FireWire's place as the solution for high-speed connection needs.