topic 2 - information systems and databases

Question 1

what are Information systems?

Answer 1

they are the computer systems that support end users, giving them access to the information needed

Question 2

what are some of the Characteristics of An Information System?

Answer 2

• Organisation of data into information
  data dictionaries can organise data
• Analysis of information to give knowledge
  Gaining knowledge from information is the purpose of an information system

also, Tables, queries and reports are examples of tools used to analyse DATA

Question 3

what functions do information systems perform?

Answer 3

-Processing transactions (e.g transaction processing system)
- Providing users with information about an organisation

Question 4

what is a transaction processing system?

Answer 4

it collects, stores, modifies and retrieves the daily transactions of an organisation e.g shopping malls

examples would be credit card payments, EFTPOS and ATM

Question 5

what are two types of transaction processing?

Answer 5

batch processing (collections transaction data and processes later)

real time processing (processes immediately)