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CMP SCI 3010
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This 2 page Class Notes was uploaded by Lauren Jones on Wednesday January 13, 2016. The Class Notes belongs to CSC 101 at a university taught by James Patridge (P) in Winter 2016. Since its upload, it has received 10 views.
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Date Created: 01/13/16
Chap 1.: Info Technology, the Internet, and You (1/13/16) *Computer is an electronic device that can be used to store and process data. The Four Major Functions of Computers Input: gather and enter data Process: manipulates, calculates, or organizes data Output: displays data and info Storage: Saves data and info *It inputs data, then processes data into information, then it outputs the information. Parts of an Information System People: most important part; the contact is direct and indirect o We use the computer for: entertainment, business, medicine, & education. Procedures Software: the purpose is to convert data into information; tells the computer what to do. Two types: system (works with computers only; enables application software to interact w/ the computer hardware) and application (people use this) software o System Software has: (1) operating system that coordinates computer resources, provides the user interface, and runs applications; (2) utilities that perform specific tasks related to managing computer resources (e.g. antivirus program); (3) device drivers which are programs designed to allow input/output devices to communicate w/ the computer. o Application Software has enduser software and three types: (1) generalpurpose applications, which everyone can use (e.g. Microsoft Office); (2) Specialized applications, which…; (3) mobile applications, which is used on phones and tablets. Hardware: Supercomputers (Huge box computers), Mainframe computers (works w/ many users), Midrange computers (may be used for a big project), Personal Computers (desktop, laptop, tablet, phone) Data The Internet Personal Computer Hardware o Four Basic Categories System Unit (the computer modem itself) Microprocessor Memory: holds data being currently processed, temporary storage, contents are lost when the power is off) Input/Output (keyboard, scanner/printer, monitor) Secondary Storage Communications: these devices (modem) provide PC w/ the ability to communicate w/ other computer systems; they modify audio, video & other types of data into a form that can be transmitted through the internet.
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