Data, Information and Data Handling notes
16 notes by 16 users
This Data, Information and Data Handling page gathers over 10 community-made notes on topics from data processing to backup and recovery. School students can revise data handling, and teachers can find ready-made material; most notes are at secondary level. Explore a note to get started.
Select topic
- Data, Information and Knowledge274
- Types and Sources of Data34
- Information Quality and Value110
- Data Collection and Capture48
- Data Logging and Sensors28
- Data Encoding and Representation49
- Data Validation and Verification183
- Data Processing Methods36
- Data Analysis and Presentation9
- Spreadsheets and Databases9
- Big Data and Hadoop21
- Data Exchange and Sharing22
- Data Backup, Recovery and Archiving23
Notes
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Topic 6-Backup and Recovery Backup and RecoveryWhy do we use back up? makes a copy of the data so that in the event of a disaster data can be recovered prevents permanent data loss Backup and Recovery Plan Which storage media should be used? e.g...
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Data, information, knowledge and processing - created from Mind Map Data, information, and knowledge Data: raw number, letters, symbols, sounds or images Information: data with context and meaning
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Unit 2 3.1,2,3,4,5,6 Notes 3.1 Data versus information, i.e: information is in context, data is not data is information that has been coded and structured in some way, ready for processing, storage, transmission etc. Data consists of raw figure...
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data exchange Simplex is data transmitted in one direction only.This data is received by your tv which then carries out the request like turn the volume up or change the channel. half duplex is when devices can communicate with eac...
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All Topics Data raw facts and figures alphanumeric characters - text, symbols & letters data has no meaning eg - 135/75, 130/75 & 120/60 Information data that's been processed by a computer what the computer outputs info has con...
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Data processing What is data processing Collection and storage of data Editing and updating data Sorting and searching Output and disseminate Batch processing
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Revision topics Armstrong, Robbie4.1.1 Data, information and knowledgeThe relationship between data, information and knowledge.Burns, Samuel4.1.1 Data, information and knowledgeThe reasons for encoding data and the problem associated...
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Chapter 3 HOMI- Data Processing Process - Control System = Computer senses process variables and adjust process parameters to let process continueInformation - Processing system = Computer provides users with data needed to make decisions and t...
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Chapter 22, Digital data Comparison and ones compliment 0100111 = 78 10110001 = - 78 Once you represent the binary number into the opposite number, it becomes negative and therefore, is it's compliment. 10001101 = ? We work backwards to ...
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spark Architecture Important background processes --- Spark Context Yarn Resource Manager, Application Master & launching of executors (containers). CoarseGrainedExecutorBackend & Netty-based RPC. SparkListeners. Execution of a j...
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Untitled REPRESENTING DATA DATA AND INFORMATION DATA meaningless raw unorganised facts figures without context or meaning until processed INFORMATION data that has been processed and presented in a meaningful way therefore mak...
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Chapter 8: Core Techniques and Principles Validation Techniques Existence checking: Veryfing that the data has been enteredType Checking: Veryfing that the input data is not incorrectRange checking: Checking that a entered value is acceptable Characteristics ...
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ict revision Data is words, numbers, dates, images, sounds etc without context Information is a collection of words, numbers, dates, images, sounds etc put into context, IE: to give them meaning. Validation is an automatic co...
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Untitled Hadoop - necessity is the mother of all inventions. Huge volumes of data needed to be stored and processed. inspired by the GFS ( google File System Paper) and Map-Reduce What is expected of the Bid ...
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Quality of information - created from Mind Map If your system is incorrect or of poor quality = poor quality, inaccurate information Factors affecting Accuracy
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como funciona big data
More Data, Information and Data Handling resources
About data, information and data handling notes
GoConqr OriginalData, Information and Data Handling notes
These notes cover data, information and knowledge, as well as processing, data exchange and backup. Some focus on particular techniques, such as checks on entered data or ways to represent digital data.
Start with the notes on data, information and knowledge for an overview of how the terms relate. Then try Data processing, which introduces collection, storage, editing, searching and output. For a narrower topic, the backup and recovery notes look at why copies are made and which storage media might be used.
Revise with the notes
Read one section at a time and write a brief summary in your own words. Compare your summary with the note, then revisit any terms you missed. If you want to test your recall, switch to a quiz on the unit page. Pick a topic and begin with the notes that match it.
Frequently asked questions
Which notes are a good place to start?
The notes on data, information and knowledge are a useful starting point because they introduce the relationship between those terms. From there, the note titled Data processing covers what happens to data, including collection, storage, editing, searching and output. Choose a narrower topic afterwards if you are revising a particular area.
What topics do these notes cover?
The selection includes notes on data exchange, information quality, backup and recovery, digital data and checks on entered data. Other notes introduce data, information and knowledge or cover data processing. School students can use the selection to find a topic they are revising, while teachers can find ready-made material.
Are the notes free to use?
Yes. Every note listed here is free to open and study without an account. The resources were made by GoConqr users. A free account also lets you save quiz scores and make your own quizzes, mind maps, flashcards and notes, but it is not needed to read the notes on this page.