CS 11 Handout Outline I Basic computer concepts A Definition of a computer B Number systems and conversion C Types of programming languages Program Development Cycle A Problem Identification B Logic Formulation C Coding D Testing and Debugging E Storage and Maintenance Program Logic Formulation A Algorithms B Algorithm Representation 1 Flowchart 2 Pseudocode Programming Fundamentals A Data Types B Variables and Constants C Operators D Expressions Control Structures A Sequential B Conditional C
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LIGHT PEN A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer’s display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy. A light pen detects a change of brightness of nearby screen pixels when scanned by cathode ray tube electron beam and communicates the timing of this event to the computer. Since a CRT scans the entire screen one pixel at
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Task: We are becoming increasingly dependent on computers. They are used in businesses‚ hospitals‚ crime detection and even to fly planes. Is this dependence on computers a good thing or should we be more suspicious of their benefits? The last two decades have witnessed a dramatic increase in the utilization of computer devices almost everywhere. It is indisputable that it has brought significant benefits to our lives in many spheres such as economics and science. However‚ it is also alarming
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Nowadays‚ computers and its accessories have several applications in our daily life. Computers are used in different aspects in my country: schools‚ universities‚ ministries and in some factories and stores . Broadly‚ using computers and their applications have a positive impact on our daily practices and make our life more easier than past. More effective‚ decrease the risks in some dangerous industries‚ increase the productivity‚ and more efficiency of the products due to using them. My reasons
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The System Unit 6 The keyboard and its sections 7 Word Processing 8 Data Processing 9 Stages of Data Processing 10 Information Evolution 11 Revision 12 Examination JS 2 WKS TOPICS 1 ICT as a transformation tool 2 Benefits and disadvantages of ICT 3 ICT Gadgets 4 Computer Programming language 5 Computer Programming Language 6 BASIC Programming language 7 Simple BASIC Statement 8.9 Graphic Packages 1 10 Graphic Packages 11 JSS 3 WKS TOPICS 1-2 Number Systems 3-4
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CS 100L2-ICDL / ES12FB2 Assignment # 3 Flores‚ Ian Peter Hanie D. Prof. Mon Arjay Fernandez Malbog Jan. 15 2013 Computer Number System Binary‚ hexadecimal‚ and octal refer to different number systems. The one that we typically use is called decimal. These number systems refer to the number of symbols used to represent numbers. In the decimal system‚ we use ten different symbols: 0‚ 1‚ 2‚ 3‚ 4‚ 5‚ 6‚ 7‚ 8‚ and 9. with these ten symbols‚ we can represent any quantity. For example‚ if we
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NUMBER SYSTEM Definition It defines how a number can be represented using distinct symbols. A number can be represented differently in different systems‚ for instance the two number systems (2A) base 16 and (52) base 8 both refer to the same quantity though the representations are different. When we type some letters or words‚ the computer translates them in numbers as computers can understand only numbers. A computer can understand positional number system where there are only a few symbols
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handed over the three sciences to the learned world” The place-value system‚ first seen in the 3rd-century Bakhshali Manuscript‚ was clearly in place in his work. While he did not use a symbol for zero‚ the French mathematician Georges Ifrah explains that knowledge of zero was implicit in Aryabhata’s place-value system as a place holder for the powers of ten with null coefficients[13] However‚ Aryabhata did not use the Brahmi numerals. Continuing the Sanskritic tradition from Vedic times‚ he used letters
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1 Engineering Mathematics 1 (AQB10102) CHAPTER 1: NUMBERS AND ARITHMETIC 1.1 TYPE OF NUMBERS NEGATIVE INTEGER - POSITIVE AND REAL NUMBERS (R) • • Numbers that can be expressed as decimals Real Number System: • Consist of positive and negative natural numbers including 0 Example: …‚ -5‚ -4‚ -3‚ -2‚ -1‚ 0‚ 1‚ 2‚ 3‚ 4‚ 5‚ … • All numbers including natural numbers‚ whole numbers‚ integers‚ rational numbers and irrational numbers are real numbers Example: 4 = 4
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1) WAP to print the Fibonacci series CLS a = 1 b = 1 PRINT a‚ b‚ FOR i = 1 TO 8 c = a + b PRINT c‚ a = b b = c NEXT i END ………………………………………………………………………………. 2) WAP to print the factors of a given number REM Program to print the factors of a given number CLS INPUT “Enter any number”; n FOR i = 1 TO n IF n MOD i = 0 THEN PRINT i‚ NEXT i END ………………………………………………………………………………… 3) WAP to print the greater among ten different numbers REM Program to print greater number among ten
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