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ROM

ROM Read Only Memory “…computer memory on which data has been prerecorded. Once data has been written onto a ROM chip, it cannot be removed and can only be read. -Webopedia Hard disk “This is large-capacity permanent storage used to hold information such as programs and documents.”

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ROM

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  1. ROM • Read Only Memory • “…computer memory on which data has been prerecorded. Once data has been written onto a ROM chip, it cannot be removed and can only be read. -Webopedia

  2. Hard disk • “This is large-capacity permanent storage used to hold information such as programs and documents.” -Tyson. How PCs Work.

  3. Sound Card • “This is used by the computer to record and play audio by converting analog sound into digital information and back again.” -Tyson. How PCs work.

  4. Mouse • “A device that controls the movement of the cursor or pointer on a display screen…” -Tyson. How PCs work.

  5. Scanner • “A device that reads data and inputs it to the computer…” -Wilson.

  6. Ports • Slots or spaces “on the outside of a computer to attach external devices such as printers, scanners, tape backup drives, removable CD-ROM or floppy-disk drives.” -Wilson. • Ethernet • USB • Serial

  7. LAN • Local Area Network • Network covering a small geographic area

  8. GUI Graphical User Interface Icon-based command system

  9. ASCII American Standard Code for Information Interchange Standard allows for transfer of information between different systems

  10. Binary • “Computers are based on the binary numbering system, which consists of just two unique numbers, 0 and 1.” -Webopedia • All digital data is encoded in the binary system so that it can be processed by computers. Everything is represented in strings of 0s and 1s.

  11. Unicode • More complex than ASCII http://webopedia.com/TERM/U/Unicode.html

  12. cache • Temporary storage of data that might be accessed again.

  13. CPU • Central Processing Unit • Main part of a computer

  14. Operating System • Software that allows the operation of the computer and other applications • What is the latest OS from Microsoft?

  15. PC • Personal Computer • Individual computer or workstation

  16. Graphics Card • Converts video data to display on the monitor

  17. Network Card • Enables connections to external networks

  18. Server • Large computers that serve software and data to smaller client PCs.

  19. Desktop v. Laptop • Desktop • Keyboard • CPU • Disk drives • Monitor • Laptop • Single portable unit with battery

  20. Hardware • Physical components • Casing • Motherboard • Cards • Chips • Drives • Mouse • Printer

  21. Software • OS • Applications • Web Browser • Word Processing • Email etc. • ILS – Integrated Library System

  22. Hard Disk • Long-term storage of applications (software) and files (data)

  23. DVD Digital Video Disc Stores images, video and text

  24. Server Backups • Daily or regular backups to magnetic tape

  25. Network Drives • Shared drives accessed from numerous PCs on a single network • G, H, I, J, K, S, W, Z

  26. Monitor Technology • CRT • Cathode Ray Tube • LCD • Liquid Crystal Display

  27. Screen Resolution • The number of pixels on a monitor • 1024 X 768 means 1,024 pixels on 768 lines

  28. Pixels • Picture Element • Dots or points

  29. Peripherals • Digital camera • PDA – personal digital assistant • FAX – facsimile • Barcode scanner

  30. WAN • Wide Area Network • Network covering a wide area network

  31. Wireless • Technology provides flexibility and mobility to staff

  32. Client-Server • Large servers serve up applications and files to smaller PC clients

  33. Internet • Largest network in the world – global network of networks • Uses standard protocols for information exchange • HTTP – Hypertext Transfer Protocol • FTP – File Transfer Protocol • SMTP – Simple Mail Transfer Protocol • TCP/IP – Transmission Control Protocol/Internet Protocol

  34. Internet in Libraries • How has the Internet affected libraries?

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