monday lecture chapter 6
TRANSCRIPT
![Page 1: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/1.jpg)
Technology in ActionTechnology in Action
Chapter 6
Evaluating Your System: Understanding and
Assessing Hardware
![Page 2: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/2.jpg)
Chapter Six ObjectivesChapter Six Objectives
• Buy or Upgrade• CPU function• Memory• Storage devices• Video• Sound• Ports• Reliability of system
![Page 3: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/3.jpg)
To Buy or Upgrade?To Buy or Upgrade?
Consider:• Moore’s Law
– 18 months• Double the number of transistors
• Other advances in hardware– Storage
– Memory
– Peripherals
![Page 4: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/4.jpg)
What Is Your Ideal Computer?What Is Your Ideal Computer?
Your Computer Uses:• Entertainment
• Educational
• Business
![Page 5: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/5.jpg)
Ideal ComputerIdeal Computer
Some Possible Uses:• Word processing
• Digital photo work
• Spreadsheets
• Home financeMatch Components
to Your Needs:CPURAM
StorageOther
Match Components to Your Needs:
CPURAM
StorageOther
![Page 6: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/6.jpg)
TrainingTraining
• Plan on training
• Sources– Classes– Online newsgroups– Manufacturers and publishers– Built-in tutorials
![Page 7: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/7.jpg)
Assessing Your Hardware – Assessing Your Hardware – The SubsystemsThe Subsystems
• CPU
• RAM
• Storage
• Video
• Audio
• Ports
![Page 8: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/8.jpg)
Central Processing UnitCentral Processing Unit
• Two major parts• Control unit
• ALU (arithmetic logic unit)
• Machine cycle• Clock speed
![Page 9: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/9.jpg)
CPU UsageCPU Usage
CPU usage
CPU usage
Windows XP
Task Manager
Windows XP
Task Manager
![Page 10: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/10.jpg)
Upgrading Your CPUUpgrading Your CPU
• Expense
• Speed
• Compatibility
• Method– Chip-for-chip– Piggybacking– Daughter board
Installing heatsink over
CPU
![Page 11: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/11.jpg)
Random Access MemoryRandom Access Memory
• RAM
• Temporary storage
• Fast
• Memory cards
• Types of RAM
memorymemorymemorymemory
![Page 12: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/12.jpg)
Random Access MemoryRandom Access Memory
• Installed RAM
• Task Manager– Performance tab
• Kernel memory
• RAM needs
memorymemorymemorymemory
![Page 13: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/13.jpg)
System Performance and RAMSystem Performance and RAM
• Memory bound
• Virtual memory
• Page file page file usage
memorymemorymemorymemory
![Page 14: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/14.jpg)
Adding RAMAdding RAM
• Limited
• Easy to do
memorymemorymemorymemory
![Page 15: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/15.jpg)
Additional RAMAdditional RAM
Considerations:Type
Amount
Maximum you need
Maximum allowable
Total slots
Total open slots
memorymemorymemorymemory
![Page 16: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/16.jpg)
StorageStorage
• Hard disk drive
• Floppy disk drive
• Zip disk drive
• CD drive
• DVD drive
storagestoragestoragestorage
![Page 17: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/17.jpg)
Hard Disk Drive Hard Disk Drive
Compared to other storage:Large, economical
Fast data access
Fast data transfer rate
storagestoragestoragestorage
![Page 18: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/18.jpg)
Hard Disk DriveHard Disk Drive
Considerations:Current capacity
Needed capacity
Software storage examples• Windows XP – 1.5 GB
• Word – 265 MB
• Internet Explorer – 75 MB
storagestoragestoragestorage
![Page 19: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/19.jpg)
Portable StoragePortable Storage
• Floppy
• CD
• DVD
• Flash memory
• Zip
![Page 20: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/20.jpg)
CapacitiesCapacities
Storage Media Capacity
Floppy disk 1.44 MB
Zip disk 100 to 750 MB
CD 700 MB
DVD 9.4 GB
Flash memory 16 MB to 1 GB
storagestoragestoragestorage
![Page 21: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/21.jpg)
Floppy and Zip DisksFloppy and Zip Disks
• Portable
• Magnetized particles of iron oxide
• Organized by tracks and sectors
![Page 22: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/22.jpg)
CDs and DVDsCDs and DVDs
• Pits burned into disk
• Pits and non-pits translated to ones (1) and zeroes (0)
![Page 23: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/23.jpg)
CDs and DVDsCDs and DVDs
Types and needsCD-R
CD-RW
DVD-ROM
DVD-R
CD-ROM
DVD-RW
storagestoragestoragestorage
![Page 24: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/24.jpg)
Possible Storage UpgradesPossible Storage Upgrades
• Hard drive– Internal
– External
• CD, DVD
• Zip drive
• Flash card
storagestoragestoragestorage
![Page 25: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/25.jpg)
Video SubsystemVideo Subsystem
• Video card (video adapter)– VRAM– Screen refresh rates
• Monitor– CRT vs. LCD– Size
![Page 26: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/26.jpg)
Screen Resolution – Tradeoffs Screen Resolution – Tradeoffs
Comparison of two screen resolutions
800 x 600 pixels
1024 x 768 pixels
![Page 27: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/27.jpg)
Screen Resolution – Changing Screen Resolution – Changing
![Page 28: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/28.jpg)
Audio SubsystemAudio Subsystem
Speakers:Amplified
Not amplified
Subwoofer
![Page 29: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/29.jpg)
Audio SubsystemAudio Subsystem
Sound card:Expansion card
3D sound card
Surround sound • Dolby Digital 5.1
Card identification
Input and output jacks
![Page 30: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/30.jpg)
Port ReviewPort Review
Types: Serial
Parallel
USB 1.2 and 2.0
FireWire
Ethernet
![Page 31: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/31.jpg)
Evaluating System ReliabilityEvaluating System Reliability
First, routine file maintenance:Disk defragmentation
Edit startup folder
Remove temporary Internet files
![Page 32: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/32.jpg)
Disk DefragmentationDisk Defragmentation
![Page 33: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/33.jpg)
System CrashSystem Crash
• Double-check hardware and software installations
• With error code, check Microsoft Knowledge Base
• Ensure enough RAM
• Software updates
![Page 34: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/34.jpg)
After EvaluationAfter Evaluation
Buy or Upgrade?• CPU• Memory• Storage• Video• Sound• Ports• System reliability
![Page 35: Monday Lecture Chapter 6](https://reader036.vdocument.in/reader036/viewer/2022062513/55589592d8b42aa6708b47c4/html5/thumbnails/35.jpg)
Evaluating Your System Evaluating Your System Topic SummaryTopic Summary
• Upgrade or buy new
• CPU function and evaluation
• Memory
• Storage devices
• Video output
• Sound quality