FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -digital computer, any of a class of devices capable of solving problems by processing information in discrete form. It operates on data, including magnitudes, letters, and symbols, that are expressed in binary code-i.e., using only the two digits 0 and 1.

Detailed explanation-2: -Digital data, in information theory and information systems, is information represented as a string of discrete symbols, each of which can take on one of only a finite number of values from some alphabet, such as letters or digits. An example is a text document, which consists of a string of alphanumeric characters.

Detailed explanation-3: -Digital signals are transmitted to computers in the form of electronic signals sent as pulses. The digital device interprets each pulse’s voltage as either a 0 or 1.

Detailed explanation-4: -Examples of digital electronic computers include the IBM PC, the Apple Macintosh, and modern smartphones.

Detailed explanation-5: -Computers are digital machines because at their most basic level they can distinguish between just two values, 0 and 1, or off and on. There is no simple way to represent all the values in between, such as 0.25. All data that a computer processes must be encoded digitally, as a series of zeroes and ones.