Ecommerce, also known as electronic commerce or
internet commerce, refers to the buying and selling of goods or
services using the internet, and the transfer of money and data to execute
these transactions.
CCC is a certificate program that gives an opportunity to the common man to gain knowledge about computer and information technology. CCC certification is an innovative course that aims to spread digital literacy in the country. NIELIT CCC Course Eligibility 2019 Like other exams, there are no minimum or maximum requirement for filling the CCC application form. Candidates can submit the application irrespective of age or educational qualification. However, there are three modes through which candidates can appear in CCC exam. The eligibility criteria for all the three modes are as follows- Candidates who are sponsored by the NIELIT approved institutes- Such candidates are permitted to join the course irrespective of any educational qualification. Applicants who are sponsored by the Government recognized Colleges/ Schools and have obtained and Unique identity number from NIELIT for joining CCC program- such candidates can also conduct CCC irrespective of any q...
Software is a set of programs, which is designed to perform a well-defined function. A program is a sequence of instructions written to solve a particular problem. There are two types of software − System Software Application Software System Software The system software is a collection of programs designed to operate, control, and extend the processing capabilities of the computer itself. System software is generally prepared by the computer manufacturers. These software products comprise of programs written in low-level languages, which interact with the hardware at a very basic level. System software serves as the interface between the hardware and the end users. Some examples of system software are Operating System, Compilers, Interpreter, Assemblers, etc. Here is a list of some of the most prominent features of a system software − Close to the system Fast in speed Difficult to design Difficult to understand Less interactive Smaller in size Difficult to ...
Classful Addressing : Introduced in 1981, with classful routing, IP v4 addresses were divided into 5 classes(A to E). Classes A-C: unicast addresses Class D: multicast addresses Class E: reserved for future use Class A In a class A address, the first bit of the first octet is always ‘0’. Thus, class A addresses range from 0.0.0.0 to 127.255.255.255(as 01111111 in binary converts to 127 in decimal). The first 8 bits or the first octet denote the network portion and the rest 24 bits or the 3 octets belong to the host portion. Example: 10.1.1.1 Exception: - 127.X.X.X is reserved for loopback - 0.X.X.X is reserved for default network Therefore, the actual range of class A addresses is: 1.0.0.0 to 126.255.255.255 Class B In a class B address, the first octet would always start with ’10’. Thus, class B addresses range from 128.0.0.0 to 191.255.255.255. The first 16 bits or the first two octets denote the network portion and the remaining 16 bits or two octets belong to the host ...
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