ALL CLASS COMPUTER SCIENCE AND DATA PROCESSING NOTES

  1- _________ refers to the rules and regulations governing the conduct of an indivual with others. Profession  Profession Computer behaviour  Computer ethics  Ethics   2- _________ is the standard of conduct as it relates to computers.  Computer ethics  Ethics  Computer users Computer professionals  3- _________ is a place where the teaching and learning of computer studies takes place.   Computer laboratory  Computer shop  Computer factory  Computer house   4- These are some of the components of an ideal computer laboratory except_____________.   White marker board  printers  chairs and computer systems  Washing machines  5- A computer room contains the following except_____________.   Monitor  printer  sewing machine  UPS   ANSWERS 1-D 2-A 3-A 4-D 5-C

  Ethics means that the rules and standards that guide the conduct of an individual with others. As technology and computers are increasingly becoming part of our everyday lives, we must understand how to avoid problems that come with them.    Computer ethics can be defined as the standard, rules and conduct that students must obey in using the computer.    The computer laboratory, also called computer room is a room where the teaching and learning of computer studies takes place. It is a room where the needed equipment for teaching and learning computer studies or doing scientific work on computer applications are kept.    An ideal computer laboratory must have the following features:  it must be a well-illuminated room that can comfortably accommodate twenty-five computers.  it must be furnished with chairs and computer tables.  it must contain complete computers sets(desktops, laptops with keyboards, speakers, microphone, mouse, etc. There must be a central main power supply

1- ……………………..is the change of information in any manner detectable by an observer.   A.     Information B.     Information processing C.     Technology D.    None of the above 2- ................................. is the assembly of written information into a standard order. A.     Information B.     Analysis C.     Organization D.    Collation   3- Which of the following is not the ways of organizing information? A.     Alphabetical by Name B.     Alphabetical by Title C.     Chronologically D.    Information 4- …………………… is the science of evaluating information content, and refining information to build portfolios. A.     Collation B.     Organization of information C.     Information Analysis D.    Technology 5- Which of the following can help in collecting data about environmental issues ? A.     Education B.     Agriculture C.     Special Needs D.    Environment   1-B 2-D   3-D   4-C 5-D

  SS1 INFORMATION PROCESSING AND TRANSMISSION  Information processing is the change of information in any manner detectable by an observer. As such, it is a process which describes everything which happens (changes) in the universe, from the falling of a rock (a change in position) to the printing of a text file from a digital computer system. Information represented digitally in two-state, or binary, form is often referred to as digital information. Modern information systems are characterized by extensive metamorphoses of analog and digital information. - Collation of information - Organization of information - Analysis of information - Interpretation of information Collation is the assembly of written information into a standard order. Advantages of sorted list include: One can easily find the first n elements and the last n elements One can easily search for an element, and conclude whether it is in the list. One can easily search for an elements in a given range. In

  Basic Arithmetic Any statement enclosed with double quotes (" ") in a cout statement is displayed directly and any arithmetical or logical expression is evaluated and then the result is displayed. The program below shows the result of the expression 3 + 5. /* PROG: C1_03sum.cpp */ #include <iostream> using namespace std; int main() { cout <<"5 + 3 = "<<5+3<<endl; //calculate and print the sum system("pause"); return 0; } 5 + 3 = 8 Press any key to continue . . .

  It is time to type our first C++ program. This program is going to prompt a line of text that says "Hello World!". This program has no input and no process but only output which says "Hello world!".  #include <iostream> using namespace std; int main() //the only function in this program. { cout <<"------------------------------- \n\n\n\n"; cout <<"Hello world! \n"; cout <<"********************************* \n"; cout <<"This is my C++ program."<<endl<<endl<<endl<<endl; system("pause"); return 0; }

  Understanding the Programming Programming is instructing a computer to perform a task for you with the help of a programming language. The instructing part requires a step by step solution to the task. This step by step solution is called an algorithm after the name of AlKharizmi. People who make computer programs are called programmers. There are usually two difficulties for computer programmers; Finding a feasible algorithm (algorithm design) and writing the program (implementation). People who use the programs are called end-users. A computer program (software) contains a sequence of instructions for a computer. One program is usually composed of three parts: l Input part gets the data from an input device. Our programs, in the book, will get the data from keyboard or from a text file. l Process part is the hardest working part of the program. It carries out the algorithm and finds out the desired result. l Output part gives the result of the program. Our programs will display the