This is cybersquad official Website. What is Cybersquad ? Cybersquad is chat app of cybercry group . And this is not just ch...

Cybersquad Android App

Unknown

/

7 Comments

This is cybersquad official Website.

What is Cybersquad ?

• Cybersquad is chat app of cybercry group . And this is not just chating app .In this app profestional share their knowledge to the beginners .
• Cybersquad is programmer’s community android app. Its mean  if you’re interested in any kind programming  this is best place for you. Here we will share our knowledge , we will try to solve your error, and through this we will inprove our skill.This app is totally free for every one.
• Join me on cybersquad

How to join Cybersquad community ?

There is only Three step

step 1:-  Download App

step 2:- Sign in with Gmail account

step 3:- start chatting

Theory:

INTRODUCTION TO COMPUTERS :

• Today’s computers come in many different forms. They range from massive, multipurpose mainJFames and supercomputers to desktop-size personal computers. Between these extremes is a vast middle ground of minicomputers and workstations. Large minicomputers approach mainframes in computing power, whereas workstations are powerful personal computers. Mainframes and large minicomputers are used by many businesses, universities, hospitals and government agencies to carry out sophisticated scientific and business calculations. These computers are expensive (large computers can cost millions of dollars) and may require a sizeable staff of supporting personnel and a special, carefully controlled environment. Personal computers, on the other hand, are small and inexpensive. In fact, portable, battery-powered “laptop” computers weighing less than 5 or 6 pounds are now widely used by many students and traveling professionals. Personal computers are used extensively in most schools and businesses and they are rapidly becoming common household items. Most students use personal computers when learning to program with C. 
• Despite their small size and low cost, modem personal computers approach minicomputers in computing power. They are now used for many applications that formerly required larger, more expensive computers. Moreover, their performance continues to improve dramatically as their cost continues to drop. The design of a personal computer permits a high level of interaction between the user and the computer. Most applications (e.g., word processors, graphics programs, spreadsheets and database management programs) are specifically designed to take advantage of this feature, thus providing the skilled user with a wide variety of creative tools to write, draw or carry out numerical computations. Applications involving high-resolution graphics are particularly common. Many organizations connect personal computers to larger computers or to other personal computers, thus permitting their use either as stand-alone devices or as terminals within a computer network. Connections over telephone lines are also common. When viewed in this context, we see that personal computers often complement, rather than replace, the use of larger computers.

COMPUTER CHARACTERISTICS

• All digital computers, regardless of their size, are basically electronic devices that can transmit, store, and manipulate information (Le., data). Several different types of data can be processed by a computer. These include numeric data, character data (names, addresses, etc.), graphic data (charts, drawings, photographs, etc.), and sound (music, speech patterns, etc.). The two most common types, from the standpoint of a beginning programmer, are numeric data and character data. Scientific and technical applications are concerned primarily with numeric data, whereas business applications usually require processing of both numeric and character data. 
• To process a particular set of data, the computer must be given an appropriate set of instructions called a program. These instructions are entered into the computer and then stored in a portion of the computer’s memory.  
• A stored program can be executedat any time. This causes the following things to happen
• 1. A set of information, called the input data, will be entered into the computer (from the keyboard, a floppy disk, etc.) and stored in a portion of the computer’s memory. 
• 2. The input data will be processed to produce certain desired results, known as the output data. 3. The output data, and perhaps some of the input data, will be printed onto a sheet of paper or displayed on a monitor (a television receiver specially designed to display computer output)
• This three-step procedure can be repeated many times if desired, thus causing a large quantity of data to be processed in rapid sequence. It should be understood, however, that each of these steps, particularly steps 2 and 3, can be lengthy and complicated. 
• Every piece of information stored within the computer’s memory is encoded as some unique combination of zeros and ones. These zeros and ones are called bits (binary digits). Each bit is represented by an electronic device that is, in some sense, either “off’ (zero) or “on” (one).
• Small computers have memories that are organized into 8-bit multiples called bytes 

Programming :

• Programming in a natural language, say the full scope of the English language, seems like a very difficult task. But, before moving on to languages we can write programs in today, I want to leave on a high note.