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Lecture 1: CSCI E-1 Spring 2013
Tommy MacWilliam
January 28, 2013
Education
0
300
Lecture 1: CSCI E-1 Spring 2013
ASCII. BIOS. Binary. Bits. Bitwise operators. Booting. Motherboards. Peripherals.
Tommy MacWilliam
January 28, 2013
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Transcript
Computer Science E-1 Lecture 1: Hardware
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None
Power Supply
BIOS
CMOS
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None
POST
Memory
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Peripherals
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http://www.youtube.com/watch? v=rdIWKytq_q4
Hard drive
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Kernel
CPU
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Operating Systems
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Keyboard
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Mouse
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http://www.youtube.com/watch? v=74W-QNudReo
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Lectures
Recaps
Sections
Problem Sets
Discuss
Exams
Final Project
Part I: Hardware
Part II: Internet
Part III: Security
Part IV: Software Development
01010100101010010101000010101010 01010101001010101011101011010101 00010101010110100101001001011110 10100111010100101001001010100100 01010100101010101001010010010101 00100101010010101010010101010101 01010001010010110010010010010100
Do you like cats?
None
How much do you like cats?
None
__ __ __ __ 1000 100 10 1
__ __ __ __ 8 4 2 1
0
0 1
00 01 10
(1 × 2) + (0 × 1) = 2 +
0 = 2
00 01 10 11
(1 × 2) + (1 × 1) = 2 +
1 = 3
000 001 011 100
(1 × 4) + (0 × 2) + (0 ×
1) = 4
000 001 011 100 101
(1 × 4) + (0 × 2) + (1 ×
1) = 5
10110
None
None
None
None
None
14
None
None
None
None
None
None
0011 + 0110
________________________
________________________
________________________
________________________
________________________
There are 10 types of people in the world: those
who understand binary and those who don’t.
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Character encodings
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ASCII
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CS E-1
67 83 32 69 45 49
01000011 01010011 00100000 01000101 00101101 00110001
None
None
• byte • kilobyte • megabyte • gigabyte • terabyte
• ...
What chair is everyone sitting in?
1. Ask the person to your left where he/she is
sitting 2. If there is no one to your left, say “one” 3. Add one to the answer of the person to your left, and say it out loud
Computer Science E-1 Lecture 1: Hardware