Computer Science Principles by Steph

Computer Science Principles by Steph https://padlet.com/stephanyvarela24/ia8glx6x9is5 en-us 2017-08-09 13:11:39 UTC 2017-10-03 15:40:04 UTC hello@padlet.com Prototype stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180477372 A preliminary sketch of an idea or model for something new. It’s the original drawing from which something real might be built or created.]]> 2017-08-09 13:13:18 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180477372 Transistors stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180478033 Microscopic electronic switches that turn on and off millions of times a second to create the computer experience you're having right now. ]]> 2017-08-09 13:20:07 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180478033 Binary Code stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180479142 Consists of only two symbols—0s and 1s. (The "bi" in "binary" means two.)]]> 2017-08-09 13:30:38 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180479142 Pixel stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180480206 Each dot is a picture element]]> 2017-08-09 13:40:25 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180480206 Video Graphic Array stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180480283 Translates binary-coded information (0s and 1s) into the color combinations required to make up an image on your computer screen. Each of these pixels displays some combination of red/green/blue .]]> 2017-08-09 13:41:14 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180480283 ASCII (American Standard Code for Information Interchange) stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180480779 8-bit code. It uses eight bits to represent a letter, number, or punctuation mark.]]> 2017-08-09 13:45:17 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180480779 Band Width stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180727686 How fast your internet is basically. In other words can be called "data transfer rate" (1bit/ second) TRANSMISSION CAPACITY ]]> 2017-08-11 12:56:49 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180727686 Innovation stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180727749 A new idea or device]]> 2017-08-11 12:58:07 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180727749 A bit stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180727778 Smallest unit of data in a computer, 0 or 1]]> 2017-08-11 12:58:36 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180727778 Latency stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180727909 Time it takes for a bit to travel from its sender to receiver ]]> 2017-08-11 13:00:09 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180727909 Protocol stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180728030 Common set of rules and instructions that each computer follows]]> 2017-08-11 13:01:22 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180728030 Binary Question stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180728185 A question to which there are only two possible answers.]]> 2017-08-11 13:02:51 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180728185 Binary Message stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180728796 A message that can only be one of two possible values.]]> 2017-08-11 13:09:34 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180728796 Internet stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180733466 World wide web]]> 2017-08-11 13:49:07 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180733466 1 Byte stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180733546 1 byte is created by 8 bits]]> 2017-08-11 13:49:41 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180733546 1 Kilo Byte stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180733806 1 Kilo byte is equal to 1000 bytes]]> 2017-08-11 13:52:06 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180733806 1 Mega Byte stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180733966 1000 Kilo bytes eaqual 1 Mega byte]]> 2017-08-11 13:53:25 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180733966 1 Song Needs How Much Space? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180734045 3-4 Mega bytes]]> 2017-08-11 13:54:17 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180734045 We send bits through stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180734257 Electricity, Light, and Radio Waves]]> 2017-08-11 13:56:27 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180734257 Bit Rate stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180734668 # of bits per second a system can transmit]]> 2017-08-11 14:01:41 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180734668 How long it will take to transfter one song? 3 MB stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180734939 8 Million Bits = 1 Mega Byte
Bit Rate = 8 Mega Mbps (byte per second)]]> 2017-08-11 14:05:12 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180734939 What is faster than electricity? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180735389 Light]]> 2017-08-11 14:10:03 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/180735389 TCP stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077663 Stands for "Transmission Control Protocol". The purpose was to allow computers to communicate over long distance networks.]]> 2017-08-15 13:01:14 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077663 DNS stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077710 Stands for "Domain Name System. DNS translates domain names into IP addresses, allowing you to access an Internet location by its domain name.]]> 2017-08-15 13:01:43 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077710 HTTP stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077760 Stands for "Hyper Text Transport Protocol Secure". HTTPS is the same thing as HTTP, but uses a secure socket layer (SSL) for security purposes]]> 2017-08-15 13:02:17 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077760 FT stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077812 Stands for "File Transfer Protocol." FTP is a protocol designed for transferring files over the Internet.]]> 2017-08-15 13:02:41 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077812 Fiber Optic Cable stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077864 Fiber optic cable is a high-speed data transmission medium. It contains tiny glass or plastic filaments that carry light beams]]> 2017-08-15 13:03:16 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181077864 Binary to Decimal stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181081234 Divide everything by 2]]> 2017-08-15 13:26:29 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181081234 What is the minimum number of bits you need to encode the letters 26 of the alphabet plus a space? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181426901 5 Bits]]> 2017-08-17 12:56:13 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181426901 The standard QWERTY keyboard has 47 keys that can place characters on the screen. Each of these keys can also display a second character by holding the "shift" key at the same time. How many bits would you need to encode everything that could be typed on this keyboard? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181427176 7 Bits]]> 2017-08-17 12:57:58 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181427176 A binary message consisting of four bits was sent to you by a friend. The message was supposed to be ABAB. Unfortunately, your friend set the bit on the wire once every 2 seconds, but you read the wire once every second. Assuming that the first bit was sent and read at the same time, what message did you receive instead? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181427950 AABB]]> 2017-08-17 13:01:53 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181427950 Decimal / Hex/ Binary/ Character stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181429262 65 | 41 | 01000001 | A |
66 | 42 | 01000010 | B |
67 | 43 | 01000011 | C |
68 | 44 | 01000100 | D |
69 | 45 | 01000101 | E |
70 | 46 | 01000110 | F |
71 | 47 | 01000111 | G |
72 | 48 | 01001000 | H |
73 | 49 | 01001001 | I |
74 | 4A | 01001010 | J |
75 | 4B | 01001011 | K |
76 | 4C | 01001100 | L |
77 | 4D | 01001101 | M |
78 | 4E | 01001110 | N |
79 | 4F | 01001111 | O |
80 | 50 | 01010000 | P |
81 | 51 | 01010001 | Q |
82 | 52 | 01010010 | R |
83 | 53 | 01010011 | S |
84 | 54 | 01010100 | T |
85 | 55 | 01010101 | U |
86 | 56 | 01010110 | V |
87 | 57 | 01010111 | W |
88 | 58 | 01011000 | X |
89 | 59 | 01011001 | Y |
90 | 5A | 01011010 | Z | ]]> 2017-08-17 13:08:58 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181429262 When sending a response to a question with 4 possible answers, the most efficient method will be require no more than what number of bits? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181430894 2 Bits]]> 2017-08-17 13:17:57 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181430894 A binary question is defined as stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181431259 A question which can be answered in only 1 of 2 possible ways]]> 2017-08-17 13:19:36 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181431259 Request for Comments (RFC) stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181877071 Documents are how standards and protocols are defined and published for all to see on the IETF website.]]> 2017-08-21 14:06:07 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181877071 IP Address stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181877242 A number assigned to any item that is connected to the Internet.]]> 2017-08-21 14:06:47 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181877242 Packets stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181877348 Small chunks of information that have been carefully formed from larger chunks of information.]]> 2017-08-21 14:07:10 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181877348 Network Redundancy stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181878862 Having multiple backups to ensure reliability during cases of high usage or failure]]> 2017-08-21 14:12:51 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181878862 Router stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181878939 A type of computer that forwards data across a network]]> 2017-08-21 14:13:14 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181878939 TCP: Transmission Control Protocol stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181879755 Provides reliable, ordered, and error-checked delivery of a stream of packets on the internet. TCP is tightly linked with IP and usually seen as TCP/IP in writing.]]> 2017-08-21 14:17:36 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181879755 The Internet Engineer Task Force (IETF) defines the protocols and standards for how the Internet works. The members of the IETF are: stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181880176 A loosely organized collection of citizens and engineers who communicate mostly by email. ]]> 2017-08-21 14:19:56 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181880176 What is an RFC? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181880487 Request for comments]]> 2017-08-21 14:21:46 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181880487 If i understand how the internet works then i will be able to: stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181880595 - Make informed choices to support or oppose decisions my government makes about access to the internet.
- Make informed choices about my privacy on the internet]]> 2017-08-21 14:22:26 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181880595 To improve communication in playing battleship on the Internet Simulator your group invented a(n) stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881069 Protocol]]> 2017-08-21 14:24:53 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881069 Which of the following information is not necessary in your protocol to play battleship? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881281 Time of Day]]> 2017-08-21 14:25:44 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881281 How many unique IP addresses could be in a fixed-length IP address system using 6 bits? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881472 64 Users]]> 2017-08-21 14:26:32 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881472 In the Internet Simulator, your router knows to send your message to a different router because: stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881711 The first 4 bits of the address specify the router number that your friend is on.]]> 2017-08-21 14:27:45 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881711 If the post office delivered mail exactly like routers delivered messages on the internet, which would be true? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881929 - The mailman would sometimes take a different path to deliver each letter to your home.
- Letters would be written on the outside of envelopes for all to read instead of letters put inside the envelopes.]]> 2017-08-21 14:28:43 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181881929 Which two of the following statements are true about routing on the Internet. stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181882347 - A packet traveling between two computers on the internet may be rerouted many times along the way.
- A packet contains addressing information to allow routers to decide how best to forward along that packet towards its destination.]]> 2017-08-21 14:30:58 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/181882347 IPv4 stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182786996 has 32 bits]]> 2017-08-25 12:49:32 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182786996 IPv6 stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182787056 has 128 bits]]> 2017-08-25 12:49:48 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182787056 Redunancy stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182788062 Multiple paths exists between two points.
Improves the reliability

The system is a fault tolerant

Individual routers can break, and the system still works fine

]]> 2017-08-25 12:55:02 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182788062 Metadata stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182791027 Its the information about what is being sent out (data about data)]]> 2017-08-25 13:07:19 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182791027 The lay out of protocol is defined by a stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182792149 protocol ]]> 2017-08-25 13:11:53 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182792149 what happens when we want to send multiple packets? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182792720 TCP (Transition Control Protocol) adds a packet number to each packet so we can track the order of the packets.]]> 2017-08-25 13:14:42 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182792720 IP takes care of what? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182793149 Size
To
Sent from]]> 2017-08-25 13:16:44 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182793149 TCP takes care of what? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182793250 package # to keep track of it]]> 2017-08-25 13:17:03 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182793250 SUMMARY stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182797634 The internet is a packet switched system through which digital data is sent by breaking the data into blocks of bits called packets

Packets contain both the data being transmitted and control information (metadata) that helps the data.

It is only able because of all machines have agreed to use he same protocol for creating and reading packets.

]]> 2017-08-25 13:34:56 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/182797634 Abstraction stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185471361 Hiding the details]]> 2017-09-07 12:51:53 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185471361 Server stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185471747 A server is a computer that provides data to other computers. It may serve data to systems on a local area network (LAN) or a wide area network (WAN) over the Internet.]]> 2017-09-07 12:52:43 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185471747 Client stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185472766 The term "client software" is used to refer to the software that acts as the interface between the client computer and the server. ]]> 2017-09-07 12:55:01 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185472766 HTTP stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185473218 Stands for "Hypertext Transfer Protocol." HTTP is the protocol used to transfer data over the web. It is part of the Internet protocol]]> 2017-09-07 12:56:06 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185473218 URL stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185474755 Stands for "Uniform Resource Locator." A URL is the address of a specific webpage or file on the Internet.]]> 2017-09-07 12:59:35 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185474755 If I understand how the Internet works, then I will be able to: stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185475860 a. make informed choices to support or oppose decisions my government makes about access to the Internet.

c. make informed choices about my privacy on the Internet.

]]> 2017-09-07 13:02:02 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185475860 IETF stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185477933 Internet engineering task force]]> 2017-09-07 13:06:33 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/185477933 Loss less compression stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/189729717 When you compress the data and send it to someone. They can uncompressed it and no data will be lost.]]> 2017-09-21 13:22:37 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/189729717 Lossy stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/189731858 When it is compressed you cannot uncompressed it. The data will be lost]]> 2017-09-21 13:26:15 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/189731858 Hexadecimal Number System stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191631271 A number system consisting of 16 distinct symbols — 0-9 and A-F — which can occur in each place value.]]> 2017-09-27 12:48:28 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191631271 Image stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191631519 A type of data used for graphics or pictures.]]> 2017-09-27 12:49:04 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191631519 Megadata stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191631727 Data that describes other data. For example, a digital image may include metadata that describe the size of the image, number of colors, or resolution.]]> 2017-09-27 12:49:26 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191631727 Pixel stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191631876 Short for "picture element" it is the fundamental unit of a digital image, typically a tiny square or dot which contains a single point of color of a larger image.]]> 2017-09-27 12:49:44 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191631876 Heuristic stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191632255 a problem solving approach (algorithm) to find a satisfactory solution where finding an optimal or exact solution is impractical or impossible.]]> 2017-09-27 12:50:23 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191632255 Why do you want to compress anything? What's the point? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191632816 Because it saves you space. When something is sent on the internet everything is compressed.]]> 2017-09-27 12:51:30 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191632816 How many bytes (or bits) are required to encode an image that is 25 pixels wide and 50 pixels tall, if you encode each pixel with 3 bytes (24 bits) of RGB data stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191633464 3,753 bytes (30,024 bits)]]> 2017-09-27 12:53:05 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191633464 Imagine that you have an image that is too dark or too bright. Describe how you would alter the RGB settings to brighten or darken it. Give an example. stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191634081 Auto Contrast ]]> 2017-09-27 12:54:40 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191634081 Abstraction stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191634576 Removing unnecessary details to focus on the essential characteristics. To break problems up into separate parts which can then be solved separately and recombined to form a complete solution. To focus on and use something based only on what it does and without concern for how that functionality is accomplished.]]> 2017-09-27 12:55:53 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191634576 RGB stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191635296 Stands for "Red Green Blue." It refers to the three hues of light (red, green, and blue, for those of you that are a little slow), that can mix together to form any color. When the highest intensity of each color is mixed together, white light is created.]]> 2017-09-27 12:57:25 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191635296 What is the base of Hexadecimal? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191635799 Hexadecimal is a base-16 number system.]]> 2017-09-27 12:58:36 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191635799 stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191636817 2017-09-27 13:00:49 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191636817 Hypothesis stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191637448 A proposed explanation for some phenomenon used as the basis for further investigation.]]> 2017-09-27 13:02:05 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191637448 README stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191640074 A document providing background information about a data set.]]> 2017-09-27 13:07:25 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191640074 CSV stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191640273 Abbreviation of "comma-separated values," this is a widely-used format for storing data.]]> 2017-09-27 13:07:51 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191640273 Raw Data stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191640405 The original data as it was collected.]]> 2017-09-27 13:08:07 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191640405 Summary table stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191640554 A table of aggregate information about a data set (e.g., the average, sum, count of some values).]]> 2017-09-27 13:08:24 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191640554 Cleaning and filtering data stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191641221 Filtering and cleaning is necessary to ensure that data is in a form that is better for computer to process]]> 2017-09-27 13:09:42 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191641221 Why were images first broken down into pixels? What problem did this solve? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191647990 Images had to be broken down so that a computer could represent them digitally]]> 2017-09-27 13:21:16 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191647990 How many different values can be represented by one Red component of a pixel stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191648757 255]]> 2017-09-27 13:22:31 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191648757 What are screen resolution and pixel density? How do they differ? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191649988 Screen resolution is the number of pixel on the screen as arranged vertically and horizontally and density is the number if pixels per a given area]]> 2017-09-27 13:24:27 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191649988 Why do RBG values range from 0 to 255? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191650895 RGB values are represented by 8 bits, where the min value is 0 and the max is 255]]> 2017-09-27 13:25:46 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191650895 Can there be any other range? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191651904 There can be any range anyone desires, the range is arbitrary ]]> 2017-09-27 13:27:15 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191651904 What happens if you increase the range? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191652555 If you increase the range, the number of colors that can be represented increase ]]> 2017-09-27 13:28:25 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191652555 Is it possible to represent all of the colors in the world? Why or why not stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191653290 It isn't possible to represent all the colors in the world, because the color spectrum is continuous and computers work with discrete values.]]> 2017-09-27 13:29:42 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191653290 Extra: Take out the calculator! How many different colors can be represented in the standard RGB color model? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191658291 16,777,216]]> 2017-09-27 13:38:04 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191658291 Do pixels have to be physically represented as squares? What else could they be and why? Why are squares preferred? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191658634 Pixels do not have to be squares. They can be triangles or rhombuses or really any shape so long as it nicely fits into the screen without cutting any pixels into pieces. Squares are preferred because most, if not all, display screens are rectangular or square, so squares fit best into the screens

]]> 2017-09-27 13:38:41 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191658634 Describe how you could double the intensity of any RGB value. What do you think happens if the input is 200, 220, 209? stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191658974 To double the intensity of any RGB value you need to double its value (R – 60 goes to R – 120). If the input is 200, 220, 209 the intensity cannot be doubled because the max is 255

]]> 2017-09-27 13:39:16 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191658974 Summary Table stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191662648 A table that summarizes information about some larger data set. It typically consists of performing computations like sums, averages, and counts on higher level groupings of information. The intent is to summarize lots of data into a form that is more useful, and easier to "see".]]> 2017-09-27 13:46:34 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191662648 Pivot Table stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191663254 The tool used by most spreadsheet programs to create a summary table.

]]> 2017-09-27 13:47:31 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191663254 Aggregation stephanyvarela24 https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191663561 A computation in which rows from a data set are grouped together and used to compute a single value of more significant meaning or measurement. Common aggregations include: Average, Count, Sum, Max, Median, etc.]]> 2017-09-27 13:48:02 UTC https://padlet.com/stephanyvarela24/ia8glx6x9is5/wish/191663561