ALL CLASS COMPUTER SCIENCE AND DATA PROCESSING NOTES

  1.     ………………………………… is the word used to describe devices. These are the parts of the computer system you can touch and see. a)     Hardware b)     Software c)     Information d)     Data    …………………………… peripherals that are used to capture data and send it to a computer system. a)     Output devices b)     Input devices c)     Storage devices d)     Processing devices 3.       …………………… peripherals pass data back from a process. a)     Input devices b)     Output devices c)     processing d)     None of the above   4.     Which of the following is the input device?    a) Harddisk    b) Monitor    c) Keyboard    d) Printer   5. Which of the follo...

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EARLY METHODS OF COUNTING BODY COUNTING Fingers, toes and feet. The fingers and toes were used for counting and keeping track of days, while the feet were used to measure areas, such as land. COLLECTION COUNTING A collection of smaller objects were used to correspond with the objects counted. For example, a shepherd would keep a count of his sheep by keeping the same number of pebbles. A collection of shells, pearls, elephant teeth, sticks, or even coconuts could be used. TALLY STICK A tally stick is any piece of wood, bone, or object on which notches could be cut. Each notch corresponds to an object being counted. With tally sticks, only a small piece of wood or bone needed to be carried around for keeping track of the numbers of objects. KNOTTED STRING Knotted strings were used in the same way as tally sticks. LIMITATION OF EARLY COUNTING AND CALCULATING DEVICES They could not be used to count large numbers. The results/output could not be stored. They consumed a lot of time. The ope...

  1.     ………………………………… is the word used to describe devices. These are the parts of the computer system you can touch and see .   A.     Hardware B.     Software C.     Data D.    Information 2.     …………………………… peripherals that are used to capture data and send it to a computer system. A.     Output devices B.     Input devices C.     Storage devices D.    Processing devices   3.     …………………… peripherals pass data back from a process . A.     Input devices B.     Output devices C.     Processing Devices D.    Storage devices   4.     Which of the following is the input device? A.     Harddisk B.     Monitor C.     Keyboard   D.    Printer 5.     Which of the following is t...

  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...

  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 . . .

  3.Term Final Exam Question    1.     What does ICT stands for? A.     Information and Communication Technology B.     Instant Command Transmission C.     Internet Community Technology D.    Information Continuity Transfer   2.     One of the following is a disadvantage of ICT. A.     Expensive setup B.     Accommodation C.     Productivity D.    Independent   3.     All are laboratory rules and regulations except ___________                             A.     Maintaining dust-free environment. B.     Do not move any equipment from its original position. C.     Do not load or remove any software from the system. D.    Do not attempt to repair laboratory equipment.   4.  ...