1. Exam 2 Review

2. Exam Structure Standard bubble form Study Hints Bring a #2 pencil!
True/False, Multiple Choice
Study Hints
Read text
Do review questions
Review all notes
Review all labs

3. Debugging Common errors Debugging procedure Errors in HTML, CSS
Reproduce, pinpoint, eliminate obvious, isolate
Errors in HTML, CSS
Software failure

4. Digitizing Discrete vs. continuous PandA Number systems
Binary and bits
Number systems
Binary
Hex
Decimal

5. Digitizing (Cont’d)
Text
ASCII
Unicode
Metadata

6. Digitizing Multimedia
Images
Pixels/subpixels
Color (RGB)
Compression (JPEG)
Sound
Intensity
Frequency
Sampling rate and Nyquist rule
Compression (MP-3)

7. Digitizing Multimedia (Cont’d)
Video
Sequence of images
Compression (MPEG)
OCR VR

8. Digitizing Multimedia (Cont’d)
Latency
Bandwidth
Bias-Free Universal Medium Principle

9. Computer Operation
Computer
CPU
Control Unit
ALU
Memory
Input
Output

10. Computer Operation (Cont’d)
Memory
Addresses
Bytes
Words
RAM

11. Computer Operation (Cont’d)
Peripherals
Drivers
Video card/GPU, …
Hard disk
Capacity
Speed

12. Computer Operation (Cont’d)
Fetch/Execute cycle
Fetch and PC
Decode
Data Fetch
Execute
Write Result

13. Computer Operation (Cont’d)
CPU instructions
MIPS, FLOPS
Clocks and Hz
Pipelining

14. Computer Operation (Cont’d)
Languages and translation
Binary object files
Assembly
High-level languages

15. Computer Operation (Cont’d)
Operating Systems (OS’s)
Resource manager
Windows, Mac OS X, Linux, Android, iOS
Software stack
IC’s
Photolithography
Transistors
Moore’s Law