ETT 429 Spring 2007 Hardware/Software Basics

Agenda Technology Standards Review Technology Standards Review Results of Technology Self Assessment Results of Technology Self Assessment Hardware/Software Hardware/Software In-class activity In-class activity File Management File Management Next Class Agenda Next Class Agenda

Technology Standards Review 6 National Educational Technology Standards for Teachers ( NETS-T) – title and 1 sentence explanations 6 National Educational Technology Standards for Teachers ( NETS-T) – title and 1 sentence explanations

Computer Systems CPU CPU Memory – RAM and ROM Memory – RAM and ROM Input devices Input devices Output devices Output devices Programs/Operating Systems Programs/Operating Systems

Computer Systems Continue CPU (central processing unit) “The brain” CPU (central processing unit) “The brain” Operating Systems Operating Systems Windows 95, 98, 2000, XP, NT Windows 95, 98, 2000, XP, NT Mac OS Mac OS Unix Unix Linux Linux Programs – everything else Programs – everything else MS Office, Photoshop, ACT!, Flash, TurboTax, all games, etc. MS Office, Photoshop, ACT!, Flash, TurboTax, all games, etc.

Computer Structure - Hardware Storage Devices Storage Devices Floppy Drives Floppy Drives Hard Drives Hard Drives CD Drives CD Drives Input Devices Input Devices Keyboard Keyboard Scanner Scanner Mouse Mouse Joystick Joystick Microphone Microphone Line inputs Line inputs Output Devices Output Devices Monitor Monitor Printer Printer Speaker Speaker Memory Memory Ram (Random Access Memory) Ram (Random Access Memory) Rom (Read Only Memory) Rom (Read Only Memory)

Computer Hardware Overview CPU CPU Monitor Monitor Keyboard Keyboard Mouse Mouse Floppy Drives Floppy Drives A: drive A: drive Zip disks Zip disks Hard Drives Hard Drives C: drive C: drive Flash/Jump drive Flash/Jump drive External drive External drive CD Drives CD Drives CD-R, CD-RW, DVD-R Network (server) Drives Network (server) Drives Z# drive at NIU Printers Printers Network vs. Local Scanners Scanners Visual Display Units Visual Display Units Liquid Crystal Display (LCD) units Digital Light Processing Displays (DLP) ELMO

What is Computer Hardware? The parts of a computer you can actually touch, hold and move The parts of a computer you can actually touch, hold and move Primary devices - includes the computer processor, monitor, keyboard and mouse Primary devices - includes the computer processor, monitor, keyboard and mouse Peripheral devices - other pieces of hardware that can be attached or built into a computer - include printers, disk drives, scanners and compact disk drives Peripheral devices - other pieces of hardware that can be attached or built into a computer - include printers, disk drives, scanners and compact disk drives

Components of a Computer System Image from Lockard & Abrams (2004)

Memory (RAM/ROM) Random Access Memory - the amount of memory available for use by programs on a computer Random Access Memory - the amount of memory available for use by programs on a computer Controls amount of actions you can do at once Controls amount of actions you can do at once Read-Only Memory - used to store programs that start your computer and do diagnostics Read-Only Memory - used to store programs that start your computer and do diagnostics

Input Devices Hardware that is used to enter information into a computer. Hardware that is used to enter information into a computer. Examples Examples Keyboard Keyboard Mouse Mouse Scanner Scanner Joystick Joystick

Output Devices Devices that take processed information and deliver it in a usable form Devices that take processed information and deliver it in a usable form Examples Examples Monitors Monitors Printers Printers Speakers Speakers Visual Display Units (LCDs and Elmos) Visual Display Units (LCDs and Elmos)

Storage Devices Fixed or removable media for saving data Fixed or removable media for saving data Examples Examples Hard drives (local or network) Hard drives (local or network) Floppy drives Floppy drives Zip drives Zip drives Jump drives Jump drives CD-R, CD-WR, DVD-R CD-R, CD-WR, DVD-R

Basics of a Computer Network A computer network is two or more computers that are connected together to share resources, such as hardware, data, and/or software. A computer network is two or more computers that are connected together to share resources, such as hardware, data, and/or software. A network that covers a small geographical area, such as a room or a building, is called a local area network or LAN. A network that covers a small geographical area, such as a room or a building, is called a local area network or LAN.

NIU’s Network Z# - user name to identify you on the network Z# - user name to identify you on the network Z# Network Drive – space on network hard drive given specifically to you Z# Network Drive – space on network hard drive given specifically to you Available only when logged into network Available only when logged into network Networked Printer – printers in computer labs linked to all computers in room (LAN) Networked Printer – printers in computer labs linked to all computers in room (LAN) Specific to room Specific to room Different than local printers (which are linked to only one computer) Different than local printers (which are linked to only one computer)

Internet Internet Internet Chat & discussion groups (Listserv/boards) Chat & discussion groups (Listserv/boards) Peer networks, LAN, & WAN Peer networks, LAN, & WAN Methods of connection – NIC, Modems, DSL, Cable, T-lines Methods of connection – NIC, Modems, DSL, Cable, T-lines Distance learning Distance learning Good and Bad Good and Bad

Projection Devices Liquid Crystal Display (LCD) units Liquid Crystal Display (LCD) units Projection devices found in classrooms and presentations Projection devices found in classrooms and presentations Allows switching between different output devices (e.g., monitor, elmo, VCR) Allows switching between different output devices (e.g., monitor, elmo, VCR) Similar to overhead projector Similar to overhead projector ELMO ELMO Electronic projector Electronic projector Used to project non-electronic items such as books, paper, etc. Used to project non-electronic items such as books, paper, etc.

Mouse 101 Left click for action Left click for action Right click for information/file or data management Right click for information/file or data management Wheel for scrolling Wheel for scrolling Cleaning a mouse (trackball) Cleaning a mouse (trackball) Computer mouse is commonly used to move mouse cursor or activate something. Your mouse senses your motion and your clicks and sends them to the computer so it can respond appropriately. Computer mouse is commonly used to move mouse cursor or activate something. Your mouse senses your motion and your clicks and sends them to the computer so it can respond appropriately. Cable mouse, cable optical mouse, wireless optical mouse. Cable mouse, cable optical mouse, wireless optical mouse.

Software Basics Operating System - A collection of computer programs that manages the hardware and computer programs of a computer Operating System - A collection of computer programs that manages the hardware and computer programs of a computer Examples - Linux, Mac OS, and Windows95/98/NT/2000/XP. Examples - Linux, Mac OS, and Windows95/98/NT/2000/XP. Computer Programs – Series of instructions that direct a computer how to process data Computer Programs – Series of instructions that direct a computer how to process data Examples – Microsoft Word, Quicken, Adobe Photoshop, Microsoft Internet Explorer Examples – Microsoft Word, Quicken, Adobe Photoshop, Microsoft Internet Explorer

Installing Software The Good The Good Gives access to programs and information Gives access to programs and information The Bad The Bad If free, may include spyware and/or viruses If free, may include spyware and/or viruses The Warning The Warning Make sure you know and trust the company that makes the software Make sure you know and trust the company that makes the software

Software Installation Practice Ad Aware SE Personal Software – well known spyware prevention software Ad Aware SE Personal Software – well known spyware prevention software Always read the instructions and details first! Always read the instructions and details first! Click download Click download Choose website link to download program (select Download.com – good site) Choose website link to download program (select Download.com – good site) Click download now (window will pop up asking to run or save) Click download now (window will pop up asking to run or save) Select run Select run Follow instructions presented by program Follow instructions presented by program