Presentation on theme: "Introduction to Computers Section 1A. home Definition of a Computer A computer is an electronic device used to process data, converting the data into."— Presentation transcript:
home Storage Terms Magnetic disk Read/write heads Disk drive Hard disk or hard drive Diskette drive Diskettes or floppy disks
home Storage Terms Continued CD-ROM drive Compact disks (CDs) Compact Disk-Read-Only Memory (CD- ROM) CD-Recordable (CD-R) CD-ReWritable (CD-RW) Digital Video Disk (DVD)
home Software A set of electronic instructions consisting of complex codes, or programs, that make the computer perform tasks
home Examples of Software System software Application software
home Five Computer Categories Supercomputers Mainframe computers Minicomputers Workstations Microcomputers, or personal computers
home The Internet Started Out As ARPANET In 1969, the Advanced Research Projects Agency (ARPA) of the U.S. Department of Defense created the Internet when it connected the computers at universities and defense contractors. This system was called ARPANET.
home The Internet Today The Internet today is a cooperative community of over 100 million computer users connected worldwide.
home World Wide Web Accessed through the Internet, the World Wide Web lets users view specially formatted documents
home Web Browsers A Web browser is computer software that lets you navigate the Web First you connect to the Internet, then you launch the browser, then you view Web pages
home URL’s Every Web page has a unique address, called a uniform resource locator, or URL (pronounced as spelled: U-R-L)
home Hyperlinks A hyperlink is a part of the Web page that is linked to a URL
home Web Search Tools Directories Search Engines Metasearch engines Site-specific search tools