Intoduction Flashcards
What is Information Technology?
IT refers to the combination of hardware, software and services that people use to manage, communicate, and share information.
What is the impact of IT on business today?
- IT is driving a new digital economy, where advances in hardware, software, and connectivity can provide enormous benefits to businesses and individuals.
- When the economy slows down, firms often use IT to reduce operating costs and improve effeciency.
What is System Analysis and Design?
It is a step-by-step process for developing high- quality information systems.
What is Information System?
It combines information technology, people, and data to support business requirements.
What are in-house applications?
These are information systems developed by a company.
What are software packages?
These are information system purchased by the company from outside vendors.
What is a system?
It is a set of related components that produce specific results.
What is data?
It consists of basic facts that are the system’s raw material.
What is information?
This is data that has been transformed into output that is valuable to users.
What are the 5 components of information systems?
- Hardware
- Software
- Data
- Processes
- People
What is hardware?
Hardware consists of everything in the physical layer of the information system. e.g. servers, workstations, networks, telecommunications equipment.
What is software?
It refers to the programs that control the hardware and produce desired information or results.
What is system Software?
- It manages the hardware components, which include a single workstation or a global network with many thousands of clients.
- Controls the flow of data
- Provides data security.
- Manages network operations.
What is application software?
They consist of programs that support day-to-day business functions and provide users with the information they require.
What are legacy systems?
These are the older systems of a company.
