Chapter 1 The Amazing Computer WOW!

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.

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

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.

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

Computer - an electronic device used to process data. abcde

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:

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

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

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

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

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

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

Software brings a computer to life.

Types of Computers: Supercomputer Mainframe Minicomputer Microcomputer Mainframe computer

Supercomputer Minicomputer Microcomputer

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

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

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

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

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

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

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

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.