Podcast
Questions and Answers
What is the primary goal of Search Engine Optimisation?
What is the primary goal of Search Engine Optimisation?
Which of the following best describes a Trojan Horse in computer security?
Which of the following best describes a Trojan Horse in computer security?
What distinguishes computing security from internet safety?
What distinguishes computing security from internet safety?
Which bullet point is NOT part of the System Development Phases?
Which bullet point is NOT part of the System Development Phases?
Signup and view all the answers
In what way does Big Data relate to data analytics?
In what way does Big Data relate to data analytics?
Signup and view all the answers
What is the purpose of a logic bomb in computer security?
What is the purpose of a logic bomb in computer security?
Signup and view all the answers
What is the main focus of data visualization techniques?
What is the main focus of data visualization techniques?
Signup and view all the answers
Which of the following is NOT a method of intellectual property protection?
Which of the following is NOT a method of intellectual property protection?
Signup and view all the answers
What does Metcalfe's Law primarily illustrate about the growth of networks?
What does Metcalfe's Law primarily illustrate about the growth of networks?
Signup and view all the answers
Which of the following best defines 'Digitisation'?
Which of the following best defines 'Digitisation'?
Signup and view all the answers
In the context of databases, what characterizes a primary key?
In the context of databases, what characterizes a primary key?
Signup and view all the answers
Which component is NOT part of the six important components of Information Systems?
Which component is NOT part of the six important components of Information Systems?
Signup and view all the answers
What is the primary purpose of the 'Processing' stage in an information system?
What is the primary purpose of the 'Processing' stage in an information system?
Signup and view all the answers
What is the primary function of a Transaction Processing System (TPS)?
What is the primary function of a Transaction Processing System (TPS)?
Signup and view all the answers
How does 'Creative Destruction' contribute to the economy?
How does 'Creative Destruction' contribute to the economy?
Signup and view all the answers
What does Boolean data type represent in a database?
What does Boolean data type represent in a database?
Signup and view all the answers
Which of the following primarily utilizes data from a Transaction Processing System?
Which of the following primarily utilizes data from a Transaction Processing System?
Signup and view all the answers
According to Moore's Law, what is expected to happen to the number of transistors on a computer chip?
According to Moore's Law, what is expected to happen to the number of transistors on a computer chip?
Signup and view all the answers
What is the purpose of an embedded system?
What is the purpose of an embedded system?
Signup and view all the answers
In computing, what does the term 'platform' refer to?
In computing, what does the term 'platform' refer to?
Signup and view all the answers
Which of the following best describes open-source software?
Which of the following best describes open-source software?
Signup and view all the answers
What measure is used for the speed of a computer's central processing unit?
What measure is used for the speed of a computer's central processing unit?
Signup and view all the answers
Which type of memory is characterized by permanent data storage?
Which type of memory is characterized by permanent data storage?
Signup and view all the answers
What is an example of a low-level programming language?
What is an example of a low-level programming language?
Signup and view all the answers
What distinguishes an extranet from an intranet?
What distinguishes an extranet from an intranet?
Signup and view all the answers
Which type of network architecture allows computers to directly share files with each other?
Which type of network architecture allows computers to directly share files with each other?
Signup and view all the answers
What is the primary function of a Domain Name in networking?
What is the primary function of a Domain Name in networking?
Signup and view all the answers
Which of the following is NOT a characteristic of cloud computing?
Which of the following is NOT a characteristic of cloud computing?
Signup and view all the answers
What is the role of an Internet Service Provider (ISP) in accessing the Internet?
What is the role of an Internet Service Provider (ISP) in accessing the Internet?
Signup and view all the answers
What does HTTPS stand for and why is it important?
What does HTTPS stand for and why is it important?
Signup and view all the answers
Which of the following statements about dynamic web pages is correct?
Which of the following statements about dynamic web pages is correct?
Signup and view all the answers
Which of the following is a goal of search engines?
Which of the following is a goal of search engines?
Signup and view all the answers
What does Moore's Law predict about transistor density on computer chips?
What does Moore's Law predict about transistor density on computer chips?
Signup and view all the answers
How does Metcalfe's Law affect network value?
How does Metcalfe's Law affect network value?
Signup and view all the answers
What characterizes a relational database?
What characterizes a relational database?
Signup and view all the answers
What is a key aspect of creative destruction in economic terms?
What is a key aspect of creative destruction in economic terms?
Signup and view all the answers
Which type of knowledge is characterized by being rooted in experience and values?
Which type of knowledge is characterized by being rooted in experience and values?
Signup and view all the answers
What is the primary role of 'Input' in an information system?
What is the primary role of 'Input' in an information system?
Signup and view all the answers
What role does digitisation play in economic development?
What role does digitisation play in economic development?
Signup and view all the answers
What is a key feature of a primary key in a database?
What is a key feature of a primary key in a database?
Signup and view all the answers
What is a key function of a Management Information System in an organization?
What is a key function of a Management Information System in an organization?
Signup and view all the answers
Which statement accurately describes the role of the motherboard in a computer system?
Which statement accurately describes the role of the motherboard in a computer system?
Signup and view all the answers
What is the main advantage of opensource software over proprietary software?
What is the main advantage of opensource software over proprietary software?
Signup and view all the answers
How do compilers and interpreters function in the context of programming languages?
How do compilers and interpreters function in the context of programming languages?
Signup and view all the answers
Which memory type is categorized as primary memory in a computer system?
Which memory type is categorized as primary memory in a computer system?
Signup and view all the answers
What is the primary purpose of a Transaction Processing System (TPS)?
What is the primary purpose of a Transaction Processing System (TPS)?
Signup and view all the answers
What distinguishes an embedded system from a general-purpose computer?
What distinguishes an embedded system from a general-purpose computer?
Signup and view all the answers
Which option is NOT considered a level of abstraction in programming languages?
Which option is NOT considered a level of abstraction in programming languages?
Signup and view all the answers
What is the primary function of an Extranet?
What is the primary function of an Extranet?
Signup and view all the answers
Which protocol is primarily used for transmitting data on the internet?
Which protocol is primarily used for transmitting data on the internet?
Signup and view all the answers
Which statement best describes client/server architecture?
Which statement best describes client/server architecture?
Signup and view all the answers
What is the main purpose of cloud computing?
What is the main purpose of cloud computing?
Signup and view all the answers
Which component is essential for creating web pages?
Which component is essential for creating web pages?
Signup and view all the answers
What distinguishes a dynamic web page from a static web page?
What distinguishes a dynamic web page from a static web page?
Signup and view all the answers
What role does an Internet Service Provider (ISP) play in accessing the internet?
What role does an Internet Service Provider (ISP) play in accessing the internet?
Signup and view all the answers
Which feature is NOT a characteristic of packet-switching networks?
Which feature is NOT a characteristic of packet-switching networks?
Signup and view all the answers
Which of the following best differentiates between security and safety in the context of computer use?
Which of the following best differentiates between security and safety in the context of computer use?
Signup and view all the answers
What is a characteristic feature of a Rootkit in computer security?
What is a characteristic feature of a Rootkit in computer security?
Signup and view all the answers
Which term best describes the process of developing a smaller part of a system incrementally?
Which term best describes the process of developing a smaller part of a system incrementally?
Signup and view all the answers
Which of the following best explains the concept of 'Big Data + Analytics'?
Which of the following best explains the concept of 'Big Data + Analytics'?
Signup and view all the answers
In the context of intellectual property, which of the following is NOT a recognized method for its protection?
In the context of intellectual property, which of the following is NOT a recognized method for its protection?
Signup and view all the answers
Which of the following techniques pertains to data analysis focused on revealing insights from relationships in data?
Which of the following techniques pertains to data analysis focused on revealing insights from relationships in data?
Signup and view all the answers
What is the primary distinction between Search Engine Optimisation and Pay Per Click advertising?
What is the primary distinction between Search Engine Optimisation and Pay Per Click advertising?
Signup and view all the answers
Which statement accurately reflects the use of a Logic Bomb in software?
Which statement accurately reflects the use of a Logic Bomb in software?
Signup and view all the answers
Study Notes
Technology Trends
- AI Revolution
- Building the Digital Future
- Compute and Connectivity Frontiers
- Cutting-edge Engineering
- A Sustainable World
Convergence
- The general process of becoming affordable and accessible
Moore's Law
- Predicts the number of transistors on a computer chip will double every 1.5 to 2 years.
Metcalfe's Law
- The value or power of a network grows exponentially as a function of the number of network members.
- Effects:
- Smaller, cheaper processors
- Bigger, more valuable networks
- More applications and growth of the IT industry
Digitisation
- Mass adoption of connected digital services by consumers, enterprises, and government.
- Digitisation can assist policymakers in spurring economic growth and employment.
Creative Destruction
- According to Schumpeter, the "gale of creative destruction" is the process of industrial mutation.
- It incessantly revolutionizes the economic structure from within
- It incessantly destroys the old one, incessantly creating a new one.
Data
- Raw facts and figures that on their own have no meaning.
- Data has meaning when processed and in context.
Information
- Communication, decision-making, support for business processes.
Knowledge
- Understanding of rules needed to interpret information.
The DIKAR Model
- The "Technology View"
- Data is the starting point, progressing through Information to Knowledge to Action
- Data is mainly operational significance
- Knowledge is mainly strategic significance.
- The "Business View"
- Similar to technology view
The RAKID Model
- Data, Information, Knowledge, Action, Results
- Focused on results.
- Different from DIKAR view
Knowledge Types
- Explicit: documents & databases
- Tacit: rooted in experience & values
Databases
- Structured collections of related data.
- Database Systems: computer programs for managing electronic databases.
- Components: Records, Fields, Keys (important fields)
- Primary keys: no duplicates, no blank values
- Relational Databases: collections of tables allowing for data access in different ways without reorganizing the tables.
- Boolean values: true or false
- Basic operations: design, data entry, queries, reports
Systems
- Sets of processes working together to produce output.
- Inputs: gathering and capturing data.
- Processing: converting data into useful outputs.
- Outputs: useful information, usually in documents and/or reports
Information Systems Components
- Hardware
- Software
- Data
- People
- Procedures
Transaction Processing System (TPS)
- A type of information system.
- Collects, stores, modifies, and retrieves data transactions of an enterprise (e.g., sales order entry, payroll, shipping).
Management Information System (MIS)
- Uses data collected by TPS to create reports for managers.
- Used for routine business decisions.
Information Management (IM)
- Collection and management of information.
- Distribution of information to audiences.
Information System Benefits
- Gathering information
- Storing information
- Manipulating information.
- Retrieving and communicating information
- Business rules
Motherboard
- Central component of a computer system.
- Called the "brain.”
Central Processing Unit (CPU)
- Control centre of a computer comprised of arithmetic and logic unit, control unit and registers.
- Measured in Hertz (processing speed).
Memory
- Stores data for processing time
- Primary Memory
- Registers
- RAM
- ROM
- Cache memory
- Secondary Memory – permanent storage.
Storage Devices
- Block Storage (Hard Disks)
- Optical Storage (CDs, DVDs)
- Flash Storage (USB sticks, flash cards, SSDs).
Embedded Systems
- Microcontroller or microprocessor-based systems designed for specific tasks (e.g., fire alarms).
Mobile Hardware
- Mobile devices have central processing units (CPUs) optimized for low power.
Levels of Abstraction
- Algorithms > High-level programming language > Low-level programming language.
- Algorithms: Step-by-step procedures, converting source code to machine code (compilers/interpreters).
Operating Systems
- Mobile, personal, server
Platform
- Combination of the CPU and operating system.
Open Source Software (OSS)
- Software with source code available under license.
- Copyright holders grant rights for study, change, distribution.
- Made available for free (GPL).
Networks
- Two or more computers interconnected.
- Local Area Networks (LANs)
- Wide Area Networks (WANs)
- Intranet: private LAN within an organization.
- Extranet: network connecting internal and external parties.
Network Classification
- Topology
- Protocol (procedures for transmitting data between devices).
- Architecture.
- Common protocols (Ethernet, TCP/IP)
- Network Architectures: Peer-to-Peer, Client-Server.
Network Security
- Firewalls: monitor and control network traffic
- Internetworking: connecting separate networks
- Packet Switching: Internet's mechanism for sending data packets.
Internet Service Provider (ISP)
- Individuals/organizations use ISPs to access the internet.
Hypertext Markup Language (HTML)
- Standard language for creating web pages and applications.
Domain Name
- Unique name associated with a specific IP address.
HTTPS
- Hypertext Transfer Protocol Secure
Dynamic Web Pages
- Display different content each time viewed.
- Client-side scripting
- Server-side scripting
Cloud Computing
- Network-based computing over the internet.
- Remotely hosted, ubiquitous, commodified.
E-commerce
- Business transactions through an internet transfer of information.
Bitcoin
- Currency from 2009, founded by a pseudonymous person (Satoshi Nakamoto).
- Uses the internet.
Strategic Information Systems
- Information systems providing owners with a competitive advantage
Porter's Five Forces
- Threat of New Entrants
- Bargaining Power of Suppliers
- Existing Rivalry between Competitors
- Bargaining Power of Buyers
- Threat of Substitute Products
Search Engine Optimisation (SEO)
- The process of affecting the visibility of websites/web pages in search engine unpaid results.
- Often referred to as "natural," "organic," or "earned" results.
Pay Per Click (PPC)
- Sponsored online advertising.
Computer Security
- Confidentiality, integrity, availability
- Techniques for preventing unauthorized data access.
Security vs. Safety
- Security: computer and information protective measures (e.g., firewalls, antivirus).
- Safety: Internet user behavior.
Logic Bomb
- Program code that triggers harmful events under specific conditions.
Trojan Horse
- Malicious program disguised as legitimate software.
Phishing
- Fake emails tricking recipients to divulge sensitive information.
Pharming
- Fake websites tricking users into disclosing sensitive information.
Rootkit
- Collection of programs masking intrusion.
- Allows hackers to access computer administrator level.
IT Architecture Considerations
- Standardisation
- Integration.
- System Development Phases (Maintenance, Implementation, Development, Design, Analysis, Initiation).
Waterfall Model
- Classic life cycle approach.
- Prototyping: a small segment of the system is developed initially, allowing the system to build incrementally.
Data Analysis Techniques
- Profiling
- Non-obvious relationship awareness
- Mobile device growth
Intellectual Property Protection
- Trade secrets
- Copyright
- Patents
Ethical Decision-Making Principles
Big Data + Analytics = Smart Data
Data Analytics
- Analyzing data to draw meaningful insights.
Data Visualisation
- Presenting data using visual elements (e.g., charts, graphs).
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Explore the latest trends in technology including AI, digitisation, and the laws that govern growth in IT. This quiz covers fundamental concepts such as Moore's Law and Metcalfe's Law while emphasizing the importance of sustainability and innovation. Test your knowledge on how these trends shape the digital future.