introductoion to computer

1. Chapter 1
The Amazing Computer
WOW!

2. Course Outline
History computer system, basic machine organization, Von
Neumann Numbers systems, Binary numbers, Boolean
logic, Architecture Algorithm definition , design and
implementation, programming Paradigm and languages,
Graphical programming, Overview of software
engineering and information technology ,operating system,
compiler, computer network and internet, computer
graphics, All social and legal issues.

3. Evaluation Criteria
• 10% Quizzes
• 20% Lab work/Assignments/projects/case
studies
• 20% Midterm Exams
• 50% Final Exams
• 100% Total Marks

4. Learning Objectives:
• List at least five professions in which computers are routinely
used, and describe at least on of the ways computers have
affected the work of people in those professions.
• List the four parts of a computer system.
• Identify four kinds of computer hardware.
• List the two major categories of software and explain the purpose
of each.
• List the four most common types of computers available today
and describe what kind of job each does best.

5. Recommended Book
1.Peter Norton’s Introduction to Computers
2.Computer Science: An overview of Computer Science, Sherer
3.An Invitation to Computer Science, Schneider and Gersting,
Brooks/Cole Thomson Learning, 2000 Evaluation

6. Computer - an electronic device
used to process data.
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7. • Hardware - physical parts of the computer
• Software - instructions to the computer
• Data - raw facts the computer can manipulate
• People - also known as users
Computer System:

9. Computer Hardware - any part
of the computer you can touch.
• Processor
• Memory
• Input and Output Devices
• Storage Devices

10. Output
Some types of hardware devices.
Storage
Input
Processor
Input and
output
Memory

11. Software - electronic instructions to
the computer. Also referred to as a
“program.”
Two types:
• System Software
• Application Software

12. • Operating Systems
• Windows 95, 98, 2000, 2010
•Windows NT, NT Server, NT
•Workstation, Server 2000, 2003,
2008 etc
•Linux and Unix
•DOS
System Software:

13. Application Software:
• Word Processing
• Spreadsheets
• Graphics
• Databases
• Entertainment
• Educational
• Communications
• Presentation

14. Application software and system software
work together to provide useful output.

15. Software brings a computer to life.

16. Types of Computers:
• Supercomputer
• Mainframe
• Minicomputer
• Microcomputer
Mainframe computer

17. Supercomputer
Minicomputer
Microcomputer

18. Supercomputers
• The most powerful computers made
• Handle large and complex calculations
• Process trillions of operations per second
• Found in research organizations

19. Mainframes
•Used in large
organizations
•Handle thousands of users
•Users access through a
terminal
•Large and powerful
systems

20. Minicomputers
•Called midrange computers
•Power between mainframe and desktop
•Handle hundreds of users
•Used in smaller organizations
•Users access through a terminal

21. Microcomputers
• Those are cheaper and slower computers with significant
computing power.
• Such computers basically use Intel Chipsets.
• They are mostly single processor systems

22. Who Uses Computers?
• Military
• Doctors
• Educators
• Engineers
• Architects
• Musicians
• Filmmakers
• Attorneys
• Bankers
• Architects

23. A medical team using “robodoc” to assist in surgery.

24. Musicians can use MIDI technology
to compose and edit their work.

25. Learning Objectives:
Chapter 1 Review
• List at least five professions in which computers are routinely
used, and describe at least one of the ways computers have
affected the work of people in those professions.
• List the four parts of a computer system.
• Identify four kinds of computer hardware.
• List the two major categories of software and explain the purpose
of each.
• List the four most common types of computers available today
and describe what kind of job each does best.