Answer: In its most basic form, telephony is a simple term that is used to describe all types of voice equipment that are designed to allowed interactive communication between two separate locations.
Answer: SCSI, also known as Small Computer System Interface, is defined as the set of ANSI standard electronic interface that allows computer to connect with peripheral devices like disk drive, tape drive, printers, scanners and many more.
Answer: LED, also known as Light Emitting Diode, is defined as the semiconductor device or diode that conducts electricity only in one direction and emitsmonochromatic light.
Answer: Infrared is a type of electromagnetic radiation that has wavelengths that are longer than those of visible light but shorter than those of microwaves and millimeter waves.
