SU 4 Flashcards
What is information technology (4)
- Computers
- Software
- Data
- Storage
What do we use IT for?
To manage, store, process, transmit data & info in digital manner
What is a network
Where ≥2 computers connected on either 1 / multiple locations
How can computers be connected in a network (3)
- Cabling
- Wireless connections
- Internet
3 Different types of network
- Local area network (LAN)
- Wide area network (WAN)
- Virtual private network (VPN)
What is software
Program that gives instructions to computers to perform tasks
2 different types of software
- System software
- Application software
Explain system software (2)
- Operating system that runs in background
- Instructs hardware on how to run specific applications
Explain application software
- Performs specific functions required by user
- Requires system software to operate
What is an accounting package
Application software that allows user to do accounting
What is a database
Transaction details stored in transaction & master files
Explain master files
Stores permanent files
Explain transaction files (2)
- Records transactions on individual basis
- Later transferred to master file
Where is data stored electronically
On fields, records, files
What data is stored on files
- Field data
- Record data
What is field data (3)
- Amount
- Price
- Quantity
What is record data
Multiple completed fields that relate to particular transaction
Data processed through 2 systems
- Real-time
- Batch processing
What is real-time data processing
Master file updated with transactions when transactions occur
What is batch processing of data (3)
- Data regarding transactions are stored & filed in transaction file
- Once data is processed = transferred to master file
- Groups transactions/periods of time
Trends in IT world (6)
- Cloud computing
- Artificial intelligence
- Machine learning
- Blockchain
- Big data & data analytics
- IT governance
What is cloud computing (2)
- Storing data online
- Operating applications where processing & storage is only online
What is artificial intelligence
Ability to mimic functions of human brain by recognising complex patterns
What is machine learning
Capabilities of AI to allow it to change how it functions & reacts based on past experiences & patterns
