1.5.5
Cookies
Cookies
Cookies
A cookie is a small text file created by a website and stored on your computer or mobile device. It is a way for a website to remember information about users.
What are cookies?
What are cookies?
- Cookies are small text files stored on a user’s computer by a website.
- They contain data about the user’s activity on that website.
- Each time the user visits the site, the cookie is sent back to the server.
- This allows websites to “remember” information about the user.
How cookies are used
How cookies are used
- Cookies are used to make your browsing experience more convenient and personalised:
- Saving personal details:
- Websites use cookies to store information, such as your name, address, or postcode, so you don't have to type it each time.
- Tracking preferences:
- Cookies remember your language choice, theme preferences, or what you have previously searched for, to improve the website's functionality.
How cookies are used 2
How cookies are used 2
- Holding items online:
- Cookies keep track of items you have added to your online shopping basket, even if you leave the website and return later.
- Storing login details:
- The "Remember me" function on a login page uses a cookie to store your details, so you can stay logged in or log in more quickly next time.
Types of cookies
Types of cookies
- Session Cookies
- Temporary and are only active during a single browsing session
- Deleted automatically when a browser is closed
- Example: remembering what is in your shopping cart during one visit
- Persistent Cookies
- Stored on a device for longer (according to an expiration date set by the website)
- Remains even after a browser is closed
- Example: remembering login details or site preferences
1Computer Systems
1.1Data Representation
1.1.1Binary Numbers
1.1.2Negative Binary Numbers
1.1.3Hexadecimal
1.1.4Using Hexadecimal
1.1.5Converting Binary & Hexadecimal
1.1.6Converting Denary & Hexadecimal
1.1.7Capacity
1.1.8Calculating Capacity Requirements
1.1.9Binary in Computer Systems
1.1.10Data Compression
1.1.11Run Length Encoding
1.1.12File Formats
1.2Data Transmission
1.3Hardware
1.3.1Elements of Computer Systems
1.3.2Types of Computer System
1.3.3Von Neumann Architecture
1.3.4The Fetch, Decode, Execute Cycle
1.3.5Factors Affecting CPU Performance
1.3.6Computational Logic
1.3.7Input Devices
1.3.82D & 3D Scanners
1.3.9Code Readers
1.3.10Solid State Storage
1.3.11Magnetic Storage
1.3.12Examples of Magnetic Storage
1.3.13Optical Storage
1.3.14Examples of Optical Storage
1.3.15Types of Optical disk
1.3.16Storage Requirements
1.3.17Translation - Compilers
1.3.18Translation - Interpreters
1.3.19Translation - Assemblers
1.3.20Acoustic Sensors
1.3.21Flow Sensors
1.3.22Gas Sensors
1.3.23Humidity Sensors
1.3.24Infrared Sensors
1.3.25Level Sensors
1.3.26Light Sensors
1.3.27Magnetic Field Sensors
1.3.28Moisture Sensors
1.3.29pH Sensors
1.3.30Pressure Sensors
1.3.31Proximity Sensors
1.3.32Temperature Sensors
1.3.33Network Hardware
1.5The Internet & its Uses
1.6Cyber Security
1.6.1Forms of Attack
1.6.2Penetration Testing
1.6.3Types of Malware
1.6.4How Malware Spreads
1.6.5Protecting Against Malware
1.6.6Information Security
1.6.7Structured Query Language (SQL) Injection
1.6.8Firewalls
1.6.9Authentication: User Access Levels
1.6.10Authentication: Passwords
1.6.11Social Engineering
1.6.12Phishing
1.6.13Denial of Service Attacks
1.7Automated & Emerging Technologies
2Algorithms, Programming & Logic
2.1Algorithm Design & Problem Solving
2.1.1Computational Thinking - Abstraction
2.1.2Computational Thinking - Decomposition
2.1.3Computational Thinking - Algorithmic Thinking
2.1.4Pseudocode
2.1.5Flow Diagrams
2.1.6Interpreting, Correcting & Completing Algorithm
2.1.7Correcting Algorithms
2.1.8Completing Algorithms
2.1.9Testing
2.1.10Types of Testing
2.1.11Test Plans
2.1.12Validation & Sanitation
2.1.13Authentication & Contingencies
2.2Programming
2.2.1Programming Fundamentals - Variables & Constants
2.2.2Programming Fundamentals - Comments
2.2.3Programming Fundamentals - Input & Output
2.2.4Data Types
2.2.5Casting
2.2.6Controlling Program Flow - Sequence
2.2.7Controlling Program Flow - Selection
2.2.8Controlling Program Flow - Iteration
2.2.9Modularity - Subroutines
2.2.10Modularity - Scope
2.2.11Arrays
Jump to other topics
1Computer Systems
1.1Data Representation
1.1.1Binary Numbers
1.1.2Negative Binary Numbers
1.1.3Hexadecimal
1.1.4Using Hexadecimal
1.1.5Converting Binary & Hexadecimal
1.1.6Converting Denary & Hexadecimal
1.1.7Capacity
1.1.8Calculating Capacity Requirements
1.1.9Binary in Computer Systems
1.1.10Data Compression
1.1.11Run Length Encoding
1.1.12File Formats
1.2Data Transmission
1.3Hardware
1.3.1Elements of Computer Systems
1.3.2Types of Computer System
1.3.3Von Neumann Architecture
1.3.4The Fetch, Decode, Execute Cycle
1.3.5Factors Affecting CPU Performance
1.3.6Computational Logic
1.3.7Input Devices
1.3.82D & 3D Scanners
1.3.9Code Readers
1.3.10Solid State Storage
1.3.11Magnetic Storage
1.3.12Examples of Magnetic Storage
1.3.13Optical Storage
1.3.14Examples of Optical Storage
1.3.15Types of Optical disk
1.3.16Storage Requirements
1.3.17Translation - Compilers
1.3.18Translation - Interpreters
1.3.19Translation - Assemblers
1.3.20Acoustic Sensors
1.3.21Flow Sensors
1.3.22Gas Sensors
1.3.23Humidity Sensors
1.3.24Infrared Sensors
1.3.25Level Sensors
1.3.26Light Sensors
1.3.27Magnetic Field Sensors
1.3.28Moisture Sensors
1.3.29pH Sensors
1.3.30Pressure Sensors
1.3.31Proximity Sensors
1.3.32Temperature Sensors
1.3.33Network Hardware
1.5The Internet & its Uses
1.6Cyber Security
1.6.1Forms of Attack
1.6.2Penetration Testing
1.6.3Types of Malware
1.6.4How Malware Spreads
1.6.5Protecting Against Malware
1.6.6Information Security
1.6.7Structured Query Language (SQL) Injection
1.6.8Firewalls
1.6.9Authentication: User Access Levels
1.6.10Authentication: Passwords
1.6.11Social Engineering
1.6.12Phishing
1.6.13Denial of Service Attacks
1.7Automated & Emerging Technologies
2Algorithms, Programming & Logic
2.1Algorithm Design & Problem Solving
2.1.1Computational Thinking - Abstraction
2.1.2Computational Thinking - Decomposition
2.1.3Computational Thinking - Algorithmic Thinking
2.1.4Pseudocode
2.1.5Flow Diagrams
2.1.6Interpreting, Correcting & Completing Algorithm
2.1.7Correcting Algorithms
2.1.8Completing Algorithms
2.1.9Testing
2.1.10Types of Testing
2.1.11Test Plans
2.1.12Validation & Sanitation
2.1.13Authentication & Contingencies
2.2Programming
2.2.1Programming Fundamentals - Variables & Constants
2.2.2Programming Fundamentals - Comments
2.2.3Programming Fundamentals - Input & Output
2.2.4Data Types
2.2.5Casting
2.2.6Controlling Program Flow - Sequence
2.2.7Controlling Program Flow - Selection
2.2.8Controlling Program Flow - Iteration
2.2.9Modularity - Subroutines
2.2.10Modularity - Scope
2.2.11Arrays
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