1. copyright Jim Martin 20071 Emerging Scholars Computer Science Session Summer 2007 Dr. Jim Martin School of Computing Clemson University jim.martin@cs.clemson.edu Rising Seniors Session

2. copyright Jim Martin 20072 Overview Topic 1: What is computer science ? Topic 2: Computers, algorithms and programs Topic 3: The Internet Topic 4: Internet security Broadband access

3. copyright Jim Martin 20073 Class Room Rules Do not login into your machines until the Instructor tells you to!

4. copyright Jim Martin 20074 Expectations Your respect to the Instructor and to your classmates Your highest level of effort You will get a grade! Your participation (10%) Your conduct (10%) homework (40%) quizes (40%)

5. copyright Jim Martin 20075 Computer Science 101…….from Wikipedia Despite its relatively short history as a formal academic discipline, computer science has made a number of fundamental contributions to science and society. These include: A formal definition of computation and computability, and proof that there are computationally unsolvable and intractable problems.computationcomputabilityunsolvableintractable The concept of a programming language, a tool for the precise expression of methodological information at various levels of abstraction.programming language Revolutionary technologies such as general-purpose computers, the Internet, digital signatures, electronic commerce, and search engines.computers Internetdigital signatureselectronic commercesearch engines The enabling of new types of scientific research, such as computational physics and computational chemistry.

6. copyright Jim Martin 20076 Computer Science 101 Algorithms are essential to the way computers process information, because a computer program is essentially an algorithm that tells the computer what specific steps to perform (in what specific order) in order to carry out a specified task, such as calculating employees’ paychecks or printing students’ report cards.computerscomputer program Thus, an algorithm can be considered to be any sequence of operations which can be performed by a computer. Typically, when an algorithm is associated with processing information, data is read from an input source or device, written to an output sink or device, and/or stored for further processing. Stored data is regarded as part of the internal state of the entity performing the algorithm. In practice, the state is stored in a data structure.data structure

7. copyright Jim Martin 20077 Computer Science Careers College courses: math and basic sciences Other helpful skills: creativity, ability to solve problems, communications skills. What would you do: Create things (products, systems, validate conceptual ideas before the real thing is created) Job titles: software engineer, programmer, IT analyst Analyze things Job titles: analyst, architect, consultant Test things: software quality assurance Support/fix things: customer service Sell things: customer support engineer, sales support

8. copyright Jim Martin 20078 Computer Science Careers Software Engineer was voted the best job by Money magazine (2006): http://money.cnn.com/magazines/moneymag/bestjobs/ Based on salary, stress level, and future outlook. Software engineers are needed in virtually every part of the economy, making this one of the fastest-growing job titles in the U.S. Even so, it's not for everybody.Designing, developing and testing computer programs requires some pretty advanced math skills and creative problem-solving ability. If you've got them, though, you can work and live where you want. 5 of the 10 hottest jobs between now and 2014 involve computer science: http://money.cnn.com/magazines/business2/nextjobboom/