Lecture 12 Sequential Logic

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Lecture 12 Sequential Logic part 4
CS147

• Prof. Sin-Min Lee
• Department of Computer Science

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(a) Parallel transmission uses one connecting
line per bit, and all bits are transmitted
simultaneously (b) Serial transmission uses
only one signal line, and the individual bits are
transmitted serially (one at a time).

• Parallel / Serial Transmission

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Review Questions

• Describe the relative advantages of parallel and
  serial transmission of binary data.
• ans.) Parallel is faster Serial requires only
  one signal line

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Comparison of nonmemory and memory operation

• Memory

When an input is applied to a circuit, the output
will change its state, but it will remain in the
new state even after the input is removed. This
property of retaining its response to a momentary
input is called memory.
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Functional diagram of a digital computer

• Digital Computers

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• Type of Computers
• - microcomputer, minicomputer (workstation),
  
• and mainframe.
• Microcomputer
• - the smallest type of computer
• - consists of several IC chips
• microprocessor, memory, and i/o interface
• Microcontroller
• - a more specialized type of microcomputer
• - designed to be used as a dedicated or
• embedded controller

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• Explain how a digital circuit that has memory
  differs from one that does not.
• ans.) One that has memory will have its output
  changed and remain changed in response to a
  momentary change in the input signal.

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(a) Parallel transmission uses one connecting
line per bit, and all bits are transmitted
simultaneously (b) Serial transmission uses
only one signal line, and the individual bits are
transmitted serially (one at a time).

• Parallel / Serial Transmission

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• Describe the relative advantages of parallel and
  serial transmission of binary data.
• ans.) Parallel is faster Serial requires only
  one signal line