Data Storage
Bits and their storage
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Data Storage-Programming and Computer Architecture-Lecture Slides, Slides of Computer Architecture and Organization
Chanchal Mahanthapa delivered this lecture at Chandra Shekhar Azad University of Agriculture and Technology for Programming and Computer Architecture. It includes: Data, Storage, Bits, Patterns, Numbers, Text, Characters, Images, Sound, Boolean, Operation
Typology: Slides
2011/2012
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Data StorageBits and their storage
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Bits and Bit Patterns
Bit:
Binary Digit (0 or 1)
Bit Patterns are used to represent information.
Numbers
Text characters
Images
Sound
And others
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The Boolean operations AND, OR, and XOR
(exclusive or)
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Gates
Gate:
A device that computes a Boolean
operation
Often implemented as (small) electroniccircuits
Provide the building blocks from whichcomputers are constructed
VLSI (Very Large Scale Integration)
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Flip-flops
Flip-flop:
A circuit built from gates that can
store one bit.
One input line is used to set its stored value to 1
One input line is used to set its stored value to 0
While both input lines are 0, the most recentlystored value is preserved
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A simple flip-flop circuit
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Setting the output of a flip-flop to 1(continued)
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Setting the output of a flip-flop to 1(continued)
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Hexadecimal Notation
Hexadecimal notation:
A shorthand
notation for long bit patterns
Divides a pattern into groups of four bits each
Represents each group by a single symbol
Example: 10100011 becomes A
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The hexadecimal coding system
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