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.
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 ...
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...
Data can be represented either in analog or digital form. The computers used the digital form to store the information. Therefore, the data needs to be converted in digital form so that it can be used by a computer. DIGITAL-TO-DIGITAL CONVERSION Digital-to-digital encoding is the representation of digital information by a digital signal. When binary 1s and 0s generated by the computer are translated into a sequence of voltage pulses that can be propagated over a wire, this process is known as digital-to-digital encoding. Digital-to-digital encoding is divided into three categories: Unipolar Encoding Polar Encoding Bipolar Encoding Unipolar Digital transmission system sends the voltage pulses over the medium link such as wire or cable. In most types of encoding, one voltage level represents 0, and another voltage level represents 1. The polarity of each pulse determines whether it is positive or negative. This type of encoding is known as Unipolar encoding as it ...
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