1 GCSE Computing Revision Booklet This booklet has been created to provide an overview of each of the topics that you need to revise. Each section is broken down and guidance given on what you need to know. Use it in conjunction with your own revision techniques‚ e.g. mindmaps‚ to prepare for the exam. Name: ……………………………………………………………………………….. 2 Fundamentals of Computer Systems You need to be able to: (a) define a computer system (b) describe the importance of computer systems in the
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in the field of computers to be able to adjust to the demands of its trends and technology. 2.2 Specific Objectives: a. Understand the concepts‚ capabilities and limitations of computers and identify its basic components. b. Convert from one number system to another number system. c. Determine the differences and advantages of the two most commonly used operating systems: DOS and Microsoft Windows operating systems. d. Familiarize with the Microsoft Windows environment
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ALGORITHM As mentioned earlier‚ A.D Booth proposed a encoding technique for the reduction of partial products for designing a low power and an efficient multiplier. Booth algorithm provides a process for multiplying binary integers in signed –2‘s complement form. For Example‚ DECIMAL BINARY -4 X 2 1100 X 0010 This algorithm is also known as radix-2 booth recording algorithm. The multiplier is recorded as Zi for every ith bit Yi with reference to Yi-1. This is based on the fact that fewer partial products
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larger number on the top than on the bottom‚ such as 9/8. I will explain how to convert these fractions to decimals. I will show you how to change an improper fraction to a mixed number. Operations (addition‚ subtraction‚ multiplication‚ and division) will be explained as well. CONVERSIONS This section will explain how to convert a fraction into a decimal. First‚ let’s get an example fraction. How about 3/8? To find a decimal‚ divide the numerator (top number) by the denominator (bottom number). So we
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exhibits that allow the visitors to learn the basics of science through a process of interactivity and discovery. The exhibits here are Acrobatic stick‚ All roads lead to Rome‚ Analogy of solubility‚ Binary to decimal‚ Boy & girl‚ Cone runs up hill‚ Conic sliced cone‚ Dancing girl‚ Day & night‚ Decimal to binary‚ Elemental composition‚ Elements and ore‚ Floating ball‚ Forced diversion‚ Fun mirror‚ Galton board‚ Grand shuttle‚ Hand and brain coordination‚ Infinite image‚ Jumping disc‚ Logic gate‚ Loop the
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probability that: A: He or she drives less than 10‚000 miles per year or has an accident? (Type a decimal) B: He or she drives 10‚000 or more miles per year and has no accidents? (type a decimal) Problem 3 In a study to determine frequency and dependency of color-blindness relative to females and males‚ 1000 people were chosen at random and the following results were recorded: [pic] A: Convert the table to a probability table by dividing each entry by 1‚000. [pic] B: What is the probability
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C IN A NUTSHELL Other resources from O’Reilly Related titles oreilly.com C Pocket Reference Practical C Programming Secure Programming Cookbook for C and C++ Programming Embedded Systems with C and C++ Programming with GNU Software Objective-C Pocket Reference Prefactoring Practical Development Environments oreilly.com is more than a complete catalog of O’Reilly books. You’ll also find links to news‚ events‚ articles‚ weblogs‚ sample chapters‚ and code examples. oreillynet.com is the essential
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C3H6 (cyclopropane) molecular mass=42.0g/mol and n=3 * C4H8 (butene or butylene) molecular mass=56.0g/mol and n=4 * C4H8 (cyclobutane) molecular mass=56.0g/mol and n=4Calculating Empirical Formula from Percentage Composition a. Assume 100g of sample b. Convert all percentages to a mass in grams‚ eg‚ 21% = 21g‚ 9% = 9g c. Find the relative atomic mass (r.a.m) of each element present using the Periodic Table d. Calculate the moles of each element present: n = mass ÷ r.a.m e. Divide the moles of each
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2nd Handouts ____________ GroupBox - used to group or contain other controls. Used to organize form into different sections and make the form easier to use. + Name property- writing a name. + Text property- display the words in the upper left corner of the GroupBox control. Textbox Data input - requires no special property settings. Data output - display only. Forecolor - color of the text. Backcolor - color of the background. white is default. Textalign- display text whether
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as multiplication and division and displayed the results in a variety of methods. Some computers displayed results in a binary representation of electronic lamps. Binary denotes using only ones and zeros thus‚ lit lamps represented ones and unlit lamps represented zeros. The irony of this is that people needed to perform another mathematical function to translate binary to decimal to make it readable to the user. One of the first computers was called ENIAC. It was a huge‚ monstrous size nearly that
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