Year 9 Computer Science Revision Wall by Bryan Moore

Year 9 Computer Science Revision Wall by Bryan Moore https://padlet.com/bryan_moore/hmox9qw8bkkx Add your revision note under each column. en-us 2017-05-21 10:53:25 UTC 2025-10-10 14:53:05 UTC hello@padlet.com Definition bryan_moore https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/172971081 Start each column with a definition]]> 2017-05-21 10:58:32 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/172971081 Examples bryan_moore https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/172971208 Give examples too]]> 2017-05-21 11:01:15 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/172971208 meaning 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173102938 system development life cycle]]> 2017-05-22 10:10:55 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173102938 Decomposition 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103004 Decomposition is the breaking down of a complex problem into smaller problems and solving them individually. ]]> 2017-05-22 10:11:17 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103004 Abstraction 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103059 Abstraction is focusing on the important pieces of information and ignoring the finer details that don't matter]]> 2017-05-22 10:11:43 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103059 Computational thinking is the thought processes involved in formulating a problem and expressing its solution(s) in such a way that a computer—human or machine—can effectively carry out. 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103080 2017-05-22 10:11:49 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103080 Boolean 14kashifma https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103111 The Boolean data type has only two values: true or false. These values are used to control the flow of the execution of programs. Boolean values are found by comparing other data values. The results of these comparisons may be combined in boolean expressions.]]> 2017-05-22 10:12:04 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103111 boolean 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103115 2017-05-22 10:12:06 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103115 character 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103131 2017-05-22 10:12:12 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103131 string 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103175 2017-05-22 10:12:22 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103175 Float 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103240 2017-05-22 10:12:55 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103240 Binary shift is a great way to work out how to multiply or divide a binary number with a denary number. 14daveysa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103254 2017-05-22 10:13:00 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103254 When designing algorithms, there may be some steps that need repeating. This is known as iteration, and can be displayed in pseudocode or flowcharts. 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103281 2017-05-22 10:13:11 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103281 meaning 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103315 code written for human understanding]]> 2017-05-22 10:13:28 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103315 AND Gate 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103341 If two inputs are both 1 then the output will be 1 but if one or both of the inputs are 0 then the output will be 0. ]]> 2017-05-22 10:13:37 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103341 Iteration is the process of repeating steps. 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103349 2017-05-22 10:13:41 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103349 Binary Shift can be used to multiply or divide numbers using powers of 2 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103385 2017-05-22 10:13:59 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103385 OR Gate 14bryantas https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103434 there will be an output if there is any signal on an input]]> 2017-05-22 10:14:20 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103434 Iteration allows algorithms to be simplified by stating that certain steps will repeat until told otherwise. This makes designing algorithms quicker and simpler because they don’t need to include lots of unnecessary steps. 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103448 2017-05-22 10:14:29 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103448 Meaning 14thorneja https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103465 Hexadecimal is base 16 rather than base 10.]]> 2017-05-22 10:14:36 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103465 NOT Gate https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103472 A NOT gate is where if the input is 0 the output will be 1. If the input is 1 the output will be 0.]]> 2017-05-22 10:14:39 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103472 1 2 3 4 5 6 7 8 9 A B C D E 14daveysa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103560 2017-05-22 10:15:19 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103560 DECOMPOSITION: 14sperrinjo https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103601 Decomposition is the ability to break something down to make it simpler ]]> 2017-05-22 10:15:36 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103601 1 2 3 4 5 6 7 8 9 A B C D E F https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103618 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15]]> 2017-05-22 10:15:43 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103618 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103633 cascade model
cyclic model]]> 2017-05-22 10:15:53 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103633 Rules 14kashifma https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103664 When you add in binary 1 plus 0 is 1, 0+0=0, 1+1=0 but you carry the one into the next column. 1+1+1= 1 and you carry 1.

]]> 2017-05-22 10:16:09 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103664 Abstraction: 14montgomet https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103669 Reduce details to make it more simple so that the programmer can focus on a few things at a time.]]> 2017-05-22 10:16:11 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103669 selection 14balmondja https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103671 In a selection structure, a question is asked, and depending on the answer the computer takes one of two courses of action. ]]> 2017-05-22 10:16:12 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103671 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103694 1+0=1
0+0=0
1+1=0 carry 1]]> 2017-05-22 10:16:23 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103694 Abstraction: 14ferrisli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103726 Being able to simplify the problem for an easier resolution/ turn out.]]> 2017-05-22 10:16:43 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103726 Abstraction: is to take out unnecessary information to solve a problem and to make it simpler too understand and read 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103757 2017-05-22 10:16:55 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103757 128,64,32,16,8,4,2,1 14thorneja https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103768 1 0 1 0 0 1 0 1]]> 2017-05-22 10:17:02 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103768 Definition 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103803 A Flowchart is a way of showing actions which can be followed]]> 2017-05-22 10:17:16 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103803 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103821

]]> 2017-05-22 10:17:25 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103821 Definition 14nealbr https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103844 A Flowchart is a diagram of a sequence of movements or actions of people or things involved in a complex system and/or activity.]]> 2017-05-22 10:17:36 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103844 Left shift is multiplying by powers of 2 14anwersa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103863 2017-05-22 10:17:42 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103863 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103864 128 64 32 16 8 4 2 1]]> 2017-05-22 10:17:42 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103864 or gate https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103871 an or gate is ]]> 2017-05-22 10:17:45 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103871 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103872

]]> 2017-05-22 10:17:45 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103872 Flowcharts use shapes to represent different tasks (for example, a diamond represents a decision etc.) 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103910 2017-05-22 10:18:03 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103910 Right shift is dividing by powers of 2 14anwersa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103921 2017-05-22 10:18:07 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103921 What is an integer? 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103972 An integer is a number which is not a decimal]]> 2017-05-22 10:18:31 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103972 1+0=1 14bojczewer https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103976 0+0=0
1+1=0 carry 1
1+1+1=1 carry 1]]> 2017-05-22 10:18:33 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173103976 io error 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104083 trying to open non existent file]]> 2017-05-22 10:19:06 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104083 Computer scientists use hexadecimal as longer numbers are much easier to write in hexadecimal than in binary. 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104088 It reduces human error.]]> 2017-05-22 10:19:09 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104088 Definition 14smithjo https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104103 A data structure is a specialized format for organizing and storing data]]> 2017-05-22 10:19:14 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104103 base 16 https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104104 it goes 1-9 & A-F

]]> 2017-05-22 10:19:15 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104104 string: a piece of text 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104167 2017-05-22 10:19:41 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104167 The power of 2 is how many places the number should move. 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104175 2017-05-22 10:19:46 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104175 boolean: true or false 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104188 2017-05-22 10:19:53 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104188 index error 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104205 sequence index non existent ]]> 2017-05-22 10:19:59 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104205 Key Error 14claxtonma https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104227 When dictionary key is not found!]]> 2017-05-22 10:20:08 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104227 ZeroDivisonError 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104242 When second arguement of division operation or modulo is zero]]> 2017-05-22 10:20:15 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104242 Float - a floating point number which can have a decimal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104254 2017-05-22 10:20:21 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104254 Try and except: 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104264 The most basic way to handle (or trap) exceptions is to use the try statement with an except clause. ]]> 2017-05-22 10:20:24 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104264 Syntax Error 14claxtonma https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104287 When the syntax is incorrect]]> 2017-05-22 10:20:36 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104287 Definition 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104315 A function uses the value of data provided to return an output which can be a string or a float]]> 2017-05-22 10:20:45 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104315 A function returns a value 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104337

]]> 2017-05-22 10:20:52 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104337 keywords 14kewleybe https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104363
procedures
def()
return
global varible]]> 2017-05-22 10:21:05 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104363 Or Gate 14bojczewer https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104387 a logical operation which gives the value one if at least one operand has the value one, and otherwise gives a value of zero.]]> 2017-05-22 10:21:17 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104387 Example of Try and Except code 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104516 try:
num = float(input("\nEnter a number:))
except:
print("An error occurred")

]]> 2017-05-22 10:22:12 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104516 Data Structures https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104574 A static data structure is fixed in size but a dynamic data structure can grow or shrink. An array is a static structure as its size is fixed. A list is a dynamic structure as its size can increase or decrease. ]]> 2017-05-22 10:22:34 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104574 ValueError 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104591 When function or operation recieves an argument with correct type but inapporpite value. ]]> 2017-05-22 10:22:40 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104591 14bojczewer https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104592 2017-05-22 10:22:40 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104592 Rules for pseudo code 14hulbertlu https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104601 1. write one statement per line
2. capitalise initial keywords
3. indent to show hierarchy
4. end multiline structures
5. keep statements language indepentdent

]]> 2017-05-22 10:22:44 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104601 Integer - a whole number 14anwersa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104674 2017-05-22 10:23:20 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104674 a global variable will update a variable that is outside the function. 14kewleybe https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104686 2017-05-22 10:23:25 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104686 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104725 BBC website with pretty cool video it is AWWESOME
http://www.bbc.co.uk/education/guides/zg46tfr/revision/1]]> 2017-05-22 10:23:45 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104725 Selection statements are IF, Else and ELIF 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104816

]]> 2017-05-22 10:24:25 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104816 The Cyclic model can be a great way to produce a video game as you can constantly update the software with this method. https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104818 2017-05-22 10:24:26 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104818 Depending on the power of 2, is the amount of zero's you either add or take away from the sum 14sperrinjo https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104904 2017-05-22 10:25:08 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104904 String 14bojczewer https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104915 String is a sequence of characters that can be stored as a variable or a constant.]]> 2017-05-22 10:25:13 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104915 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104924 BBC website with pretty cool pictures and it actually helps video has apples and pears and oranges
http://www.bbc.co.uk/education/guides/zp92mp3/revision]]> 2017-05-22 10:25:18 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104924 Data Structures 14claxtonma https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104941 An Example!!!]]> 2017-05-22 10:25:23 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104941 Definition 14nealbr https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104951 A data structure is a way of organising data in a certain way in a computer.]]> 2017-05-22 10:25:27 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104951 Diagram 14sweetmaja https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104978

]]> 2017-05-22 10:25:35 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173104978 Constant 14bojczewer https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105028 In computer science, a constant is a value that cannot be altered by the program during normal execution. It is stored in memory ]]> 2017-05-22 10:25:56 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105028 14kashifma https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105117

]]> 2017-05-22 10:26:41 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105117 Truth Tables 14ferrisli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105140 2017-05-22 10:26:53 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105140 A-F 14sweetmaja https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105178 A=1010
B=1011
C=1100
D=1101
E=1110
F=1111]]> 2017-05-22 10:27:14 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105178 Example of Hexadecimal to Decimal/Denary 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105185 A7₁₆ =
A = 10 = 1010
7 = 7 = 0111
10100111 = 128 + 32 + 4 + 2 + 1
= 167₁₀

]]> 2017-05-22 10:27:18 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105185 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105212 IT is AWESOMEE
http://www.cs.utah.edu/~germain/PPS/Topics/data_types.html
about data types that's pretty cool]]> 2017-05-22 10:27:29 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105212 example https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105213
A = 10
B = 11
C = 12
D = 13
E =14
F = 15]]> 2017-05-22 10:27:29 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105213 14kashifma https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105214

]]> 2017-05-22 10:27:30 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105214 14deliotse https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105255 1110
0110

+1001
______
11101 = answer
----------
1111

]]> 2017-05-22 10:27:47 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105255 A Syntax error also stops the code from running. https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105272 2017-05-22 10:27:57 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105272 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105326 2017-05-22 10:28:26 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105326 Hexadecimal 14nealbr https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105328 1 2 3 4 5 6 7 8 9 A B C D E F
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15]]> 2017-05-22 10:28:26 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105328 revision link: 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105355 http://www.bbc.co.uk/education/guides/zp73wmn/revision]]> 2017-05-22 10:28:38 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105355 And Gate: 14montgomet https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105358 2017-05-22 10:28:39 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105358 14thorneja https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105367 2017-05-22 10:28:42 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105367 14daveyce https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105395

]]> 2017-05-22 10:28:53 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105395 Or Gate: 14montgomet https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105472 2017-05-22 10:29:17 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105472 revision: 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105578 http://www.bbc.co.uk/education/guides/z4tf9j6/revision]]> 2017-05-22 10:29:48 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105578 If you shift the number left by 2 you multiply the number by 14sperrinjo https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105582 2017-05-22 10:29:51 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105582 14bojczewer https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105593 2017-05-22 10:29:57 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105593 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105656 Check out this website for some pretty cool ideas about selection its prettty cool

http://www.bbc.co.uk/education/guides/zy3q7ty/revision

]]> 2017-05-22 10:30:22 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105656 If you shift right by 2 you divide by 4 14sperrinjo https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105668 2017-05-22 10:30:29 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105668 Using the cascade model it can be tricky when adding changes to the software. It can also be time consuming. https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105675 2017-05-22 10:30:31 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105675 Validation will check if the user input is sensible but not if it is correct. 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105676 2017-05-22 10:30:31 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105676 revision: 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105706 http://www.bbc.co.uk/education/guides/z8n3d2p/revision
You're welcome]]> 2017-05-22 10:30:51 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105706 Every time you shift a number you're either multiplying or dividing the number by the power of 14sperrinjo https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105717 2017-05-22 10:30:55 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105717 14daveysa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105725 2017-05-22 10:30:59 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105725 14daveyce https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105768

]]> 2017-05-22 10:31:19 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105768 The step by step model has advantages like: it is detailed meaning the information is clear and precise. However, some disadvantages is that it ends at a certain point meaning that your software will end one day however the spiral model means your software will keep on going and going. 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105794 2017-05-22 10:31:34 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105794 14daveyce https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105835

]]> 2017-05-22 10:31:57 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105835 revision: 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105870 http://www.bbc.co.uk/education/guides/zghbgk7/revision
You are welcome ]]> 2017-05-22 10:32:14 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105870 a-z numeric codes https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105908 a=65
b=66
c=67
d=68
e=69
f=70
g=71
h=72
i=73
j=74
k=75
l=76
m=77
n=78
o=79
p=80
q=81
r=82
s=83
t=84
u=85
v=86
w=87
x=88
y=89
z=90

]]> 2017-05-22 10:32:29 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105908 It is good to specify the error e.g. type error by adding TypeError() to the except clause 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105990 TypeError()]]> 2017-05-22 10:33:05 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105990 revision: 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105999 http://www.bbc.co.uk/education/guides/zg46tfr/revision]]> 2017-05-22 10:33:10 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173105999 ERROR 14thomasli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106079 ERROR = EXCEPTION]]> 2017-05-22 10:33:51 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106079 revision: 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106104 http://www.bbc.co.uk/education/guides/z9hykqt/revision]]> 2017-05-22 10:34:03 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106104 Name Error https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106148 When the name of a variable or function is not found.]]> 2017-05-22 10:34:27 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106148 When you write a validation you might check for: 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106155 1) Length of data value
2) If any data has been entered
3) If data has the correct range
4) If the data is the correct data type (e.g. float not string)
5) If data has the correct format]]> 2017-05-22 10:34:29 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106155 NOT Gate 14ferrisli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106247 2017-05-22 10:35:24 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106247 Pretty cool website about pseudocode 14anwersa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106402 http://www.bbc.co.uk/education/guides/z22wwmn/revision/4]]> 2017-05-22 10:36:33 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106402 Python has a built-in function to enable you to check the data type of a variable type() 14gulatiha https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106428 2017-05-22 10:36:48 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106428 Pretty cool website about flowcharts 14anwersa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106522 http://www.bbc.co.uk/schools/gcsebitesize/design/electronics/logicrev7.shtml]]> 2017-05-22 10:37:31 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106522 Pretty cool websites about logic gates 14anwersa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106581 http://www.bbc.co.uk/schools/gcsebitesize/design/electronics/logicrev2.shtml
http://www.bbc.co.uk/schools/gcsebitesize/design/electronics/logicrev3.shtml]]> 2017-05-22 10:38:08 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106581 The types of gates and what they do 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106681 AND - Requires both inputs
NOT - Requires no input
OR - Requires any input
Any gate starting with N takes an output from no input except Not which doesn't have this counterpart]]> 2017-05-22 10:38:49 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106681 The cyclic model can go over budget and schedule as you will be constantly updating the software. https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106683 2017-05-22 10:38:49 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106683 video revision: 14hoal https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106691 https://www.youtube.com/watch?v=AYrydZCDelY]]> 2017-05-22 10:38:54 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106691 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106700 Watch this amazong video on Function it is quick and easy and pretty cool
http://www.bing.com/videos/search?q=functions+computer+science&&view=detail&mid=226DD33EACAFB55119E0226DD33EACAFB55119E0&FORM=VRDGAR ]]> 2017-05-22 10:39:00 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106700 14daveyce https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106729

]]> 2017-05-22 10:39:17 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106729 Pretty cool website about binary addition 14anwersa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106749 http://www.bbc.co.uk/education/guides/zjfgjxs/revision/2]]> 2017-05-22 10:39:29 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106749 An integer is a number that doesn't have a fractional component. E.G 4. 14sperrinjo https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106891 A number with a fractional component is something like 1.5 ]]> 2017-05-22 10:40:43 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106891 Pretty cool video about binary addition 14anwersa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106904 https://www.youtube.com/watch?v=ypqYoFbPfTk]]> 2017-05-22 10:40:49 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106904 Pseudo meaning 14hulbertlu https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106970 Pseudo means 'fake' or 'pretend' ]]> 2017-05-22 10:41:15 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106970 Meaning 14nealbr https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106993 System Development Life Cycle (SDLC)]]> 2017-05-22 10:41:25 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173106993 https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107068 2017-05-22 10:42:04 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107068 14ferrisli https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107072 2017-05-22 10:42:05 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107072 String https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107231 a string is a sequence of characters]]> 2017-05-22 10:43:09 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107231 Binary Shift 14thorneja https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107264 https://www.cs.umd.edu/class/sum2003/cmsc311/Notes/BitOp/bitshift.html

https://www.youtube.com/watch?v=Ix9U1qR3c3Q]]> 2017-05-22 10:43:22 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107264 pseudocode notations 14forsterch https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107406
There is no strict set of standard notations for pseudocode, but some of the most widely recognised are:

INPUT – indicates a user will be inputting something
OUTPUT – indicates that an output will appear on the screen
WHILE – a loop (iteration that has a condition at the beginning)
FOR – a counting loop (iteration)
REPEAT – UNTIL – a loop (iteration) that has a condition at the end
IF – THEN – ELSE – a decision (selection) in which a choice is made
any instructions that occur inside a selection or iteration are usually indented

]]> 2017-05-22 10:44:02 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107406 When PseudoCode uses a built in function like WHILE it has to finish the function so it uses ENDWHILE to stop it continuing 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107542 2017-05-22 10:45:05 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107542 14georgesa https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107727 MR Divyanusha Sharma gives a good explanation on Flowcaharts!!
Video is 10 mins long but very coool
http://www.bing.com/videos/search?q=flowcharts+computer+science&&view=detail&mid=ABD5F887F967A2BE6A51ABD5F887F967A2BE6A51&FORM=VRDGAR]]> 2017-05-22 10:46:32 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107727 Bigger adding example 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107750
11010101
11100100 +
-------------------
110111001

]]> 2017-05-22 10:46:43 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107750 Advantages: 14hulbertlu https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107949 - easy to understand
- brief
- standerized]]> 2017-05-22 10:48:14 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173107949 14lokierma https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173108014 ]]> 2017-05-22 10:48:39 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173108014 my test https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173110612 https://docs.google.com/a/bradleystokecs.org.uk/forms/d/e/1FAIpQLSdXuLv9dL5AQ5W2j3AHQtaXiqZakLzhUj3XtigSXhFvqiUAzA/viewform?usp=sf_link]]> 2017-05-22 11:07:49 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173110612 https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173112103 2017-05-22 11:18:23 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173112103 falaful https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173112193 2017-05-22 11:19:06 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173112193 am e greraph https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173115056 2017-05-22 11:35:52 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/173115056 What each Logic Gate does 14haysle https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/174256971 AND - Requires both inputs to be on to give an output.
OR - Requires any input to be on to produce an output.
NOT - Requires no input to produce an output (inverses the input)]]> 2017-05-29 14:04:29 UTC https://padlet.com/bryan_moore/hmox9qw8bkkx/wish/174256971