Wednesday, September 13th
Guest Speaker today
Technology that makes technology accessible for all - Accessibility Wizard and Options - complete this lab today
Complete Anatomy of a Hard Drive lab
World's first Hard Drive - what was the technology used to store data before hard drives were developed? How was this previous technology different? For what purpose is this same technology still used for today? Why don't you have one on your computer?
Chapter 3 - Hardware Basics - Input/Output Devices
Reading Tools OMR, UPC, RFID, OCR, PDAs
Output Devices - Monitors, Printers, SpeakersDiscussion of Optical Drive Questions
Optical Disks - CDs, DVDs playback, and now - Blu RayComparison of CD audio to DVD audio - - - Blu Ray
ADC, DAC, Bit Depth, Sampling Rate, Compression (DSP) page 110 blue bookInput Devices - post answers to School Loop.
Review of Tech Specs - Monitors and Printers - what term did you define?
Bring your blue book Friday!
Homework
NOTE: All due dates are determined by this web site. School loop is where most homework assignments will be submitted but the dates posted on school loop should be disregarded. Always check this web site.
Bring your blue book Friday!
Read page 35 and 41 green book (you do not need to do the problems on page 41 but you should be familiar with them)
News article due Friday, the focus this week will be on policies, are they necessary and who should make and enforce them? Post to School Loop.
Alexander and Benjamin will present news articles Friday.Complete - Monitors and Printers Specs
3.1 Hardware - page 26 in ITGS Guide - you do not need to answer these questions but you should be thinking about them.
Possible scenario
A computer user is planning to upgrade their current computer system to a newer model and must use their
knowledge to:
• understand the specifications of the proposed new system
• evaluate other physical considerations that may influence the choice of the physical environment of
the proposed new system, such as ergonomics and other health-related issues
• suggest upgrades to the computer system to take advantage of improvements in components, such
as processing speed
• describe how the proper disposal of the old computer system can take place and whether the choice
of computer may be affected by the manufacturer’s policies on disposal.
IT concepts to address in this topic
The computer system
• Types of computers: personal digital assistant (PDA), laptop, desktop computer
• MAC address
• Motherboard
• Central processing unit (CPU), microprocessor, clock speed: for example, megahertz (MHz), gigahertz
(GHz), terahertz (THz)
• Primary storage: read-only memory (ROM), random-access memory (RAM)
• Secondary storage: optical, magnetic, flash memory: for example, USB (universal serial bus) flash drive
• Bit, byte, kilobyte (KB), megabyte (MB), gigabyte (GB), terabyte (TB), petabyte (PB), exabyte (EB),
zettabyte (ZB), yottabyte (YB)
• Character encoding: ASCII (Unicode and American Standard Code for Information Interchange)
• Ports
Input and output devices
• Keyboards, mice, touch pads
• Optical mark recognition (OMR), optical character recognition (OCR), magnetic ink character
recognition (MICR), radio frequency identification (RFID), radio tag, bar code scanners, magnetic stripe
readers
• Microphones
• Smart card readers
• Webcams, digital cameras, digital video cameras
• Sensors, probes, real-time data collection
• Composite devices: for example, game controllers
• Touch-sensitive devices: for example, pads
• Printers, monitors, speakers, projectors
• CD-ROM (compact disc read-only memory), DVD (digital versatile/video disk) readers and burners
What
3.1 Hardware page 26
Central processing unit (CPU), microprocessor, clock speed: for example, megahertz (MHz), gigahertz
(GHz), terahertz (THz)
• Primary storage: read-only memory (ROM), random-access memory (RAM)
• Secondary storage: optical, magnetic, flash memory: for example, USB (universal serial bus) flash drive
• Bit, byte, kilobyte (KB), megabyte (MB), gigabyte (GB), terabyte (TB), petabyte (PB), exabyte (EB),
zettabyte (ZB), yottabyte (YB)
• Character encoding: ASCII (Unicode and American Standard Code for Information Interchange)
Why
Understanding the specifications of a system requires a knowledge of the terms and what they correspond to.
How
When you can read the specs of a system and determine if it will meet the needs of the intended user.