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SaaS (Software-As-A-Service): Software as a Service abbreviated as SaaS is a popular software distribution model, with customers getting delivery of the software over the World Wide Web (WWW). Saas is characterised by simple deployment procedure, reduced expenditure in customer acquisition, flexibility- allowing support for many customers with a single version of the software.

Sequence Alignment: In bioinformatics, a Sequence Alignment is a process to arrange the sequences of DNA, RNA, or protein to identify and highlight similar regions. 

Semiconductor: A Semiconductor is a material characterised by a behaviour that is in between a conductor and an insulator. This property makes them suitable for a wide ranging application in electronics. Silicon, Germanium and Pentacene are popular Semiconductor materials.

Software Defined Radio: Software-Defined Radio abbreviated as SDR is a wireless mode of communication where a computer defines or generates the transmitter modulation. With SDR, a single wireless device is able to support a wide range of capabilities. SDR has made possible what could earlier be done only by integrating multiple radio components.

SCADA: Supervisory Control and Data Acquisition  abbreviated as SCADA is essentially a computer system for collecting data from various sensors at plants and factories, or even in remote locations and then directing the data collected to a central computer which then manages controls and analyzes the real time data.
SCADA systems can be both simple and complex with the emphasis is on collecting and disseminating the exact system information to the appropriate computer within a specified time for fast troubleshooting. SCADA systems are now very popular in industries- telecom, steel plants and power plants as well as in experimental facilities.

Single Channel Optical Add/Drop Multiplexer (OADM): In telecom parlance, a Single Channel Optical Add/Drop Multiplexer (OADM) is used for utilised for adding or dropping single wavelength in Dense Wavelength Division Multiplexing optical networks. Single Channel Optical Add/Drop Multiplexer (OADM) is known to provide a stable wavelength, good isolation by integrating thin film filter technology and optical path packaging techniques which are epoxy-free

Smart Antennas:  Smart Antennas are changing the face of modern digital wireless communication systems with increased spectral efficiency, maximum range and clarity. Along with increasing use in mobile communications, they are used in RADAR systems, aerospace, GIS mapping and host of other applications. Smart Antennas can be broadly classified into 3 categories of Single Input, Multiple Output (SIMO), Multiple Input, Single Output (MISO) and Multiple Input, Multiple Output (MIMO).

Steganography: Steganography refers to the technique of hiding information. Modern Steganography intends exchanging secret messages through video, digital images, audio and encoded messages in computer software using passwords or algorithms along with a host of other techniques. Steganographic applications are available on different platforms.