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What is web browser and server?

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Web browser: Web browser is a software program that is used to navigate through WWW pages stored on the internet. Users use this to request a web page to the server by giving the address and then the browser asks the server and the server returns the page which is then decoded and displayed by the web … Read more

Define World Wide Web. | HTML

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World Wide Web (WWW): The world wide web is a network of computers. When on WWW, a cyberspace traveler can go through information stored in any computer of the world if the information is permitted to be explored on WWW. The information comes to the user in a web page or electronic page which contains hyperlinks. … Read more

Write down the character test functions and their tests.

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Character Test Functions:  In the following table the required functions and their tests are given. Function Test isalnum(c) Is c an alphanumeric character? isalpha(c) Is c an alphabetic character? isdigit(c) Is c a digit? islower(c) Is c a lower case letter? isprint(c) Is c a printable character? ispunct(c) Is c a punctuation mark? isspace(c) Is … Read more

In C language, define input & output operations and management of them.

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Input & output operations:  The operations which took place in order to take data and make the display of the processed information are known as input & output operations. Management of input & output operations:  In C language, in general, user use scanf and printf functions for input and output purpose respectively. scanf can be used … Read more

What are the rules for ++ and — operators?

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Rules for ++ and – operators:  Following are the rules for the increment (++) and decrement (–) operators. Increment (++) and decrement (–) operators are unary operators and they require variable as their operands. When postfix ++ (or –) is used with a variable in an expression, the expression is evaluated first using the original … Read more

What are the different operators?

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Arithmetic operators:  The arithmetic operators are +, -, *, /. They work the same way as they do in other languages. There are three types of arithmetic operators which are as follows, . Integer arithmetic:  Here operands are integer. For a=14 and b=4,                                   a … Read more

What is operator ? What are the categories of operators?

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Operator:  An operator is a symbol that tells the computer to perform certain mathematical and logical manipulations. Operators are used in programs to manipulate data and variables. Such as, ++, –, <, > etc. Categories of operators:  C operators can be classified into a number of categories. They are as follows, Arithmetic operators Logical operators … Read more

What are the data types of C?

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Data types: C language is rich in its data types. ANSI supports three classes of data types. Primary or fundamental data types. Derived data types. User-defined data types. All C compilers support five fundamental data types. Namely, integer (int), character (char), floating point (float), double-precision floating point (double) and void. They are described below.             Integer types: Integer are whole … Read more

What are variables? What are the conditions for variables?

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Variables:  A variable is a data name that may be used to store data value. A variable may take different value at different times during execution. Some examples are, average, height, class_strength. Conditions for variables:  Variable names may consist of letters, digits and the underscore character, subject to the following conditions. Must consist of only letters, … Read more