transistors and logic circuits

1
EE1301 Intro. to Computing Systems
The course will introduce the fundamental
concepts of computing systems from the machine
level to high-level language programming,
including

• transistors and logic circuits
• binary arithmetic and data representation
• memory and pointer addressing
• data types and structures
• Assembly Language
• C programming

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Boxes inside Boxes inside boxes
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Boxes inside Boxes inside boxes
2000 transistors(Intel 4004, 1971)
800 million transistors(Intel Penryn, 2007)
1 transistor (1960s)
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Metal-Oxide Semiconductor Transistor
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p-type transistor
n-type transistor
6
CMOS Inverter
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NOR Gate
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OR Gate
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NAND Gate
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(No Transcript)
11
One made-up fact
well, an abstraction really
A Logic Gate
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Logic Gates
AND gate
Common Gate
0
0
0
1
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Logic Gates
OR gate
Common Gate
0
0
0
0
1
1
1
0
1
1
1
1
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Logic Gates
NAND gate
Common Gate
0
0
1
0
1
1
1
0
1
1
1
0
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Logic Gates
NOR gate
Common Gate
0
0
1
0
1
0
1
0
0
1
1
0
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Logic Gates
XOR gate
Common Gate
0
0
0
0
1
1
1
0
1
1
1
0
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(No Transcript)
18
Linear Threshold Gates
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Linear Threshold Gates
Useful Model?
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Digital Circuit
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Digital Circuit