INTRODUCTION TO COMPUTER STARTING UP THE COMPUTER: BOOTING After switching ON the computer, you generally wait for sometime before the desktop appears on the computer screen. you just sit idle for some time while different messages and the opening screen of windows are displayed. This process is called booting or boot-up. All the components of […]
COMPUTER CRIME: HACKING/CRACKING As in the case of other systems and fields, there are also crimes related to computers. Computer crimes result from deliberate tampering with data and information. The people who are associated with computer crimes are often called Hackers, Crackers, Virus programmers, Breachers, Information Warriors, etc. whatever name they may have, they are […]
CONTROL STATEMENTS you have already learnt about counters and Loops. In Qbasic , loops are made with the help of control statements. Control statements are used to control the flow of the program according to your choice.These are very powerful tools for programmers. Qbasic has many control statements . some are conditional, some are unconditional […]
High level languages are designed, taking into mind the ease for the programmers. These languages are not understood by the computer because it only understands OS and 1S .To make the computer understand a program, it is first converted into machine level language. A high level language is translated into machine level code by a […]
Some examples of high level languages are : BASIC, LOGO, FORTRAN, COBOL , PASCAL,C, C++, JAVA BASIC BASIC stands for Beginners All purpose Symbolic Instruction codes.It is a very simple language. LOGO LOGO stands for Language of Graphic oriented .It is also a simple language used to draw figures and do sums. FORTRAN FORTRAN stands […]
High level languages are easier for a human programmer to understand. They are generally not dependent on any particular computer machine. Advantages of High Level Languages There are many advantages of high level languages. These are as follows: a} Understandability programs written in these languages are easier to understand and read than those in assembly […]
This language uses letters and symbols instead of binary digits. These symbols are called Mnemonics. programs written in assembly level languages are called assembly codes. Assembly codes are translated into machine level language instructions. Assembly level language is easier to understand than machine level language. HIGH LEVEL LANGUAGE {HLL} High level languages are easier for […]
A person who writes a program is called a programmer. To perform any task, programmer writes the set of instructions or programs in one of the many programming languages. programming , with regard to computer is defined as a process of designing, writing , testing , debugging and documenting a program. programming languages are divided […]
INTRODUCTION A program is a set of instructions, which when executed, makes the computer work in a particular manner . programs are an integral part of a computer . computer will be useless if it has no program . computer program directs a computer how to process and execute data. A program is always well […]
To close a presentation , perform the following steps: step-1: click at the File menu. step-2: click the close option. step-3: If the current File is unsaved, powerpoint will display a dialog box asking you to choose whether or not to save your file . you can choose to whether or not to save your […]