W-2: This is your most important form. Youâll need one from each employer you worked for over the past year. A W-2 shows the amount of money you earned, the amount withheld for income taxes and Social Security and Medicare taxes, and any contributions you made to a retirement plan, medical accounts, or child care reimbursement plan.
IR wireless (infrared wireless) IR wireless is the use of wireless technology in devices or systems that convey data through infrared (IR) radiation. Infrared is electromagnetic energy at a wavelength or wavelengths somewhat longer than those of red light. The shortest-wavelength IR borders visiblered in the electromagnetic radiation spectrum;the longest-wavelength IR borders radio waves.
The near infrared is also where conventional night vision systems and infrared remote controls operate. Thermal imaging equipment generally operates in the far infrared region - waves as much as 15 times longer than near infrared light - although some types make use of mid infrared (or both far and mid infrared).