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System Programming Notes Macro
History, Basic Structure, C Token, Data Type, operators, printf() and scanf()
The C Language is developed for creating system applications that directly interact with the hardware devices such as drivers, kernels, etc. C programming is considered as the base for other programming languages, that is why it is known as mother language. It can be defined by the following ways: Mother language System programming language Procedure-oriented programming language Structured programming language Mid-level programming language History of C Language: C programming language was developed in 1972 by Dennis Ritchie at bell laboratories of AT&T (American Telephone & Telegraph), located in U.S.A. Dennis Ritchie is known as the founder of C language . It was developed to overcome the problems of previous languages such as B, BCPL etc. Initially, C language was developed to be used in UNIX operating system . It inherits many features of previous languages such as B and BCPL General Structure...
Practical 6
6. What is CCTV networking structure? Explain. Nowadays everyone talk about CCTV facility for security purpose, but still they don’t know what the full form of CCTV is. The full form of CCTV is Closed – Circuit Television. Basic components require for CCTV network are Cameras: The security cameras of a CCTV system DVR: The security DVR is the heart of a CCTV system. CCTV Cable. BNC Connectors ( Bayonet Neill–Concelman connectors) CCTV Power Supply Tools Basic components require for wireless CCTV network are Wireless Cameras IP Camera and Wireless Antenna/Transceiver Network Video Recorder (NVR) Wireless Access Point Outdoor Wireless Systems Wireless Transceiver Omni-directional Antenna PoE Injectors Basic Structure of CCTV History of CCTV The first CCTV system was installed by Siemens AG in Germany in 1942, for observing the launch of V-2 rockets Walter Bruch a German engineer was respon...
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