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Chapter 1 – Page 1 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Chapter 1 – Introduction to the World of Computers
Chapter Summary
• Information System components
• The types of software
• Types of computers
• Types of hardware and files
• Computer Networks
Chapter 1 – Page 2 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Introduction Computer competency
• refers to acquiring computer-related skills
Microcomputers are common
Why Web-based courses?
What are the benefits of the web?
Chapter 1 – Page 3 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Five Parts of an Information System
1. People
2. Software
3. Procedure
4. Hardware
5. Data
Chapter 1 – Page 4 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
People Most important
Contact is …
Direct
Indirect
Computer uses
Business & Entertainment
Education & Medicine
Chapter 1 – Page 5 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Software Also known as programs or applications
Two major kinds of software
System Software
Application Software
Chapter 1 – Page 6 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
System Software A collection of programs – not a single program.
Include:
operating system, utilities, and device drivers
What does it do?
Two best-known operating systems for microcomputers are …….
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Chapter 1 – Page 7 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Application Software End-user software
Two major categories
Basic applications
Specialized applications
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Chapter 1 – Page 8 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Hardware - Types of Computers Four types of computers
1) Super computers
2) Mainframe Computers
3) Minicomputers
4)Microcomputers
Chapter 1 – Page 9 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Microcomputer Types
Chapter 1 – Page 10 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Handheld Amongst the smallest computing devices
Combine pen input
writing recognition
Personal organizational tools
Wireless connections to the Internet
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Chapter 1 – Page 11 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Four basic categories of equipment:
System Unit
Input/Output
Secondary Storage
Communications
Microcomputer Hardware
Chapter 1 – Page 12 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
System Unit Two important components
Microprocessor
Memory
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Chapter 1 – Page 13 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Input/Output Devices Common input devices are the keyboard and the mouse
Common output devices are printers and monitors
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Chapter 1 – Page 14 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Secondary Storage
holds data and programs even if electrical power is not available
Types:
1. hard disks
2. solid-state storage
3. optical disks
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Chapter 1 – Page 15 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Communications Modems
Modems use telephone lines
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Chapter 1 – Page 16 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Data Raw, unprocessed facts
Processed data becomes information
Digital data is stored electronically in files
Document files
Worksheet files
Database files
Presentation files
Chapter 1 – Page 17 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Connectivity, the Wireless Revolution, the Internet, and Cloud Computing
Connectivity
Sharing of information
Computer networks
Largest network is the Internet
Cloud Computing
to shift many computer activities from a user’s computer to computers on the Internet
Chapter 1 – Page 18 QMIS-130 Dr. Sulaiman Al-Rafee and Dr. Ali Dashti
Chapter 1 – Introduction to the World of Computers
Chapter Summary
• Information System components
• The types of software
• Types of computers
• Types of hardware and files
• Computer Networks
