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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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Presentation Transcript
slide1
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
Hard disk
  • “This is large-capacity permanent storage used to hold information such as programs and documents.”

-Tyson. How PCs Work.

sound card
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.

mouse
Mouse
  • “A device that controls the movement of the cursor or pointer on a display screen…”

-Tyson. How PCs work.

scanner
Scanner
  • “A device that reads data and inputs it to the computer…”

-Wilson.

ports
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
slide7
LAN
  • Local Area Network
    • Network covering a small geographic area
slide8
GUI

Graphical User Interface

Icon-based command system

ascii
ASCII

American Standard Code for Information Interchange

Standard allows for transfer of information between different systems

binary
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.
unicode
Unicode
  • More complex than ASCII

http://webopedia.com/TERM/U/Unicode.html

cache
cache
  • Temporary storage of data that might be accessed again.
slide13
CPU
  • Central Processing Unit
  • Main part of a computer
operating system
Operating System
  • Software that allows the operation of the computer and other applications
  • What is the latest OS from Microsoft?
slide15
PC
  • Personal Computer
  • Individual computer or workstation
graphics card
Graphics Card
  • Converts video data to display on the monitor
network card
Network Card
  • Enables connections to external networks
server
Server
  • Large computers that serve software and data to smaller client PCs.
desktop v laptop
Desktop v. Laptop
  • Desktop
    • Keyboard
    • CPU
    • Disk drives
    • Monitor
  • Laptop
    • Single portable unit with battery
hardware
Hardware
  • Physical components
    • Casing
    • Motherboard
    • Cards
    • Chips
    • Drives
    • Mouse
    • Printer
software
Software
  • OS
  • Applications
      • Web Browser
      • Word Processing
      • Email etc.
      • ILS – Integrated Library System
hard disk22
Hard Disk
  • Long-term storage of applications (software) and files (data)
slide23
DVD

Digital Video Disc

Stores images, video and text

server backups
Server Backups
  • Daily or regular backups to magnetic tape
network drives
Network Drives
  • Shared drives accessed from numerous PCs on a single network
  • G, H, I, J, K, S, W, Z
monitor technology
Monitor Technology
  • CRT
    • Cathode Ray Tube
  • LCD
    • Liquid Crystal Display
screen resolution
Screen Resolution
  • The number of pixels on a monitor
    • 1024 X 768 means 1,024 pixels on 768 lines
pixels
Pixels
  • Picture Element
  • Dots or points
peripherals
Peripherals
  • Digital camera
  • PDA – personal digital assistant
  • FAX – facsimile
  • Barcode scanner
slide30
WAN
  • Wide Area Network
    • Network covering a wide area network
wireless
Wireless
  • Technology provides flexibility and mobility to staff
client server
Client-Server
  • Large servers serve up applications and files to smaller PC clients
internet
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
internet in libraries
Internet in Libraries
  • How has the Internet affected libraries?