hci final

1. INFORMATION
SYSTEM

2. Data
• Are the raw ,unprocessed facts,including
text,numbers,images and sound
• It is not organised and has little value
Informations
• It is organised data
• It is valuable and meaningful to a specific user
Information
system
• Collection of hardware,software, data,people, and
procedures
• It collects data, processes data and provides information

3. • Keep track of students statistics and grades
• Help students and teachers in online
learning and discussion.
Educations
• Carry our online buying and selling
• Help plan the delivery of goods and
services.
Business
• See employee records
• Analyse products,services and products
prices
Management

4. Informations
System
Components
Hardware
Software
People
Data

5. Data
 Are the raw
 Unprocessed facts,including text,numbers,images and sound
 Processed data is called information
Hardware
 Is the equipment that processes the data to create information.
 It includes keyboard,mouse,monitor,system unit and other
devices.
Software
 Is series of instructions that tells a computer what to do
 The purpose is to convert data into informations
People
 Is anyone who communicate with computer or utilizes the
information it generates

6. Transactions processing
System
(TPS)
Management
Information System
(MIS)
Expert System (ES)/
Artifical Intelligence
(AI)
Executive
Information System
(EIS)
Decision Support
System
(DSS)

7. EIS
(Making decision)
DSS (Analyze)
MIS(Summarize)
TPS (Record)

8. Top
Management
Middle Management
Supervisor

9. • A binary digit,the smallest piece of
information yhat a computer can hold
• Always one of two values,written as 1 or 0
Bit
• Is series of 8 bits
• Which represent a single
character(number,symbol,letter)
Byte
• Combinations of one or more character or
bytes
• Are smallest units of information
field

10. • Is a collection of related fields
• Each record is represented by a row in the
table
Record
• Collection of related data
File (table)
• Collection of related files
• Stored in storage mediumdatabase

11. Database
 Is a structured collection of data
 Is organized so that enables people to add,find sort,
group,summarize,and print the data.
DBMS
 Is a software that can manage a database
 Allows to use a computer to create a database,add and
delete data in the database.

12. 1. Improved Data Integrity
2. Avoid data redundancy
3. Data can be shared over a network
4. Information can be accessed easily
5. Data Security

13. • Is a field that contains a value
• Uniquely identifies each record
in the table
Primary
key
• Is a field in a relational table
that matches the primary key
column of another table
Foreign
key

14. 1. Ensures that no two records ina database
contains the same value for that fields
2. Uniquely identifies the records
For example:
IC number Field uniquely identifies each
students because no two students can have
the same IC numbers

15. Table Form Query
Report Relationship

16. update
Insert Search
modify Filter
Delete Sort
Retrieve

17. • To update records
Update
• To Insert new records
Insert/Add
• To delete records
Delete

18. • To modify records
Modify
• To retrieve records
Retrieve
• To sort records whether ascending or
descendingSort

19. • List one or more records
using certain condition
Filter
• Find records according
using certain conditions
Search