1
Q
Basic Concepts of Microprocessors
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2
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• Differences between:
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3
Q
- Microcomputer- a computer with a
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4
Q
microprocessor as its CPU. Includes memory
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I/O
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Q
etc.
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6
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- Microprocessor – silicon chip which includes
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7
Q
ALU
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register circuits & control circuits
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Q
- Microcontroller - silicon chip which includes
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9
Q
microprocessor
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memory & IO in a single
10
Q
package.
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11
Q
What is a Microprocessor?
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12
Q
• The word comes from the combination micro and
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13
Q
processSor.
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14
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Processor means a device that processes whatever. In
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15
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this context processor means a device that processes
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16
Q
numbers
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specifically binary numbers
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Q
• To process means to manipulate. It is a general term that
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18
Q
describes all manipulation. Again in this content
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it means to
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perform certain operations on the numbers that depend on the
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20
Q
microprocessor’s design.
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21
Q
What about micro?
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22
Q
• Micro is a new addition.
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23
Q
- In the late 1960’s
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processors were built using discrete
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Q
elements.
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• These devices performed the required operation
but were too
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large and too slow.
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In the early 1970's the microchip was invented. All of
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the components that made up the processor were now
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placed on a single piece of silicon. The size became
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several thousand tỉmes smaller and the speed becamne
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several hundred times faster. The "Micro"Processor
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was born.
Microprocessor
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