Download 1.2 Memory & Storage - An Introduction to Binary and more Slides Computer science in PDF only on Docsity! Starter: โข What numbers is it made from? โข How many states does it control? Memory & Storage: Lesson 4 An Introduction to Binary Learning Outcomes: 1. Understand that data needs to be converted into a binary format to be processed by a computer 2. Convert positive denary whole numbers (0-255) into 8-bit binary numbers and vice versa Memory & Storage: Lesson 4 An Introduction to Binary Memory & Storage: Lesson 4 An Introduction to Binary Creating a circuit Computers comprise billions of switches to turn voltage on and off Memory & Storage: Lesson 4 An Introduction to Binary Circuits Use the keywords below to explain how this electrical circuit works: Battery Switch Lamp _ + Memory & Storage: Lesson 4 An Introduction to Binary Bits and Bytes 1 bit = a single 0 or 1 1 byte = 8 bits = 1 character of text (A nibble = 4 bits or half a byte) 1 KB = 1000 bytes 1 MB = 1000 KB or 1000x1000 bytes 1 GB = 1000 MB 1 TB = 1000 GB How many TB in a Petabyte? Memory & Storage: Lesson 4 An Introduction to Binary Numbers with the Denary System Thousands, Hundreds, Tens and Units 1000 100 10 0 2 7 0 3 2x1000 + 7x100 + 0x10 + 3x1 = 2703 Memory & Storage: Lesson 4 An Introduction to Binary Binary works in exactly the same way 128 64 32 16 8 4 2 1 1 0 0 1 0 1 1 0 1x128 + 1x16 + 1x4 + 1x2 = ? Memory & Storage: Lesson 4 An Introduction to Binary Binary to Denary Conversion What is: 128 64 32 16 8 4 2 1 0 0 1 1 1 0 0 1 Memory & Storage: Lesson 4 An Introduction to Binary Denary to binary 128 64 32 16 8 4 2 1 Does 128 go into 55? No, so place a zero in the box, remainder 55. Does 64 go into 55? No, so place a zero in the box, remainder 55. D es 32 go into 55? Yes, so place a โ1โ in the box, remainder 23. Yes, so place a โ1โ in the box, remainder 7. Does 16 go into 23? Does 8 go into 7? No, so place a zer in the box, remainder 7. Does 4 go into 7? Yes, so place a โ1โ in the box, remainder 3. Does 2 go into 3? Yes, so place a โ1โ in the box, remainder 1. Does 1 go into 1? Yes, so place a โ1โ in the box, no remainder 00 0 11 1 1 1 Check it now adds to 55! Convert 5510 to a binary number. Memory & Storage: Lesson 4 An Introduction to Binary Denary to binary โข Convert 28 to binary: Method โข Working right to left, write out the numbers 1, 2, 4, 8 and so on doubling each time to 128 โข 28 has a 16 in it, leaving 12. โข 12 is 8 + 4 128 64 32 16 8 4 2 1 0 0 0 1 1 1 0 0 Memory & Storage: Lesson 4 An Introduction to Binary Task 1: Binary Conversions โข Complete Task 1 the worksheet Navigation: โ Student G-Suite โ Computer Studies โ GCSE Computer Science โ Year 10 & 11 โ Paper 1 โ 1.2: Memory & Storage โ Lesson 4 โ Task 1: Binary Conversions
