The internal architectural design of computers differs from one system model to another. However, the basic organization remains the same for all computer systems. The following five units correspond to the five basic operations performed by all computer systems.
Since the advent of the first computer different types and sizes of computers are offering different services. Computers can be as big as occupying a large building and as small as a laptop or a micro-controller in mobile & embedded systems.
The beginning of commercial computer age is from UNIVAC (Universal Automatic Computer). It was developed by two scientists Mauchly and Echert at the Census Department of United States in 1947.
Finding the right definition of simple explanation of different C++ terminologies / concepts can be hard sometimes. Here we will try to collect and explain most of the C++ concepts with its simple definition in alphabetical order.
The Hexadecimal number system uses exactly 16 numbers. Base 10 uses the familiar 0 through 9, and bases 2 and 8 use a subset of these numbers. Base 16, however, needs those 10 numbers (0 through 9) and six more. The six additional numbers used in the Hexadecimal number system are represented by letters A through F.
Often times, the term IT is applied to computers and computer-based systems. However, the roots of the word technology suggest that it is a “means” to an end”. For example, using a book of matches is a means to creating a fire. The end is fire itself. A bicycle is a means of transportation. The goal of bicycle riding is to reach a destination, and perhaps also to get some needed exercise.
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RAM is volatile memory. It means that its contents are lost when the power is turned off. RAM is read/write memory. CPU can read data from RAM and write data to RAM. It is used to store data and instruction while it is being executed. RAM is also called main memory or primary storage.
A Cache (Pronounced as “cash”) is a small and very fast temporary storage memory. It is designed to speed up the transfer of data and instructions. It is located inside or close to the CPU chip.
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Mostly new Computer Science students find it hard to convert Decimal numbers to Binary number system. In this how to article I will show you the easiest method of converting decimal numbers to binary numbers.
The second looping construct is the for loop which is the useful form of the loop. In some cases it is necessary to execute a statement for a fixed number of times. In for loop, the number of iteration is specified and at each iteration, the loop control variable is assigned one of a sequence of values.
C language is inherited from the two previous programming languages BCPL and B. Kenneth Thompson at AT&T Bell Laboratories developed the language B in 1970.
The access specifier private is not accessible outside the class. The access specifier public is accessible outside the class. The access specifier protected is accessible in the derived class with some restrictions
Information is stored in a computer memory with different data types. We must know what is to be stored in a computer memory,whether it is a simple number, a letter or a very large number.
C++ is capable to provide not only the predefined classes but also the user-defined classes. Programmers can instantiate these classes any number of times. It contains two areas of declaration, one is called data member area and the other one is called the member function area.
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