What is charge-coupled devices, Computer Engineering

Assignment Help:

Q. What is Charge-coupled Devices?

CCDs are employed for storing information. They have arrays of cells that can hold charge packets of electron. A word is signified by a set of charge packets. The presence of every charge packet signifies bit-value 1. Charge packets don't remain stationary and cells pass charge to neighbouring cells with subsequent clock pulse. Thus cells are arranged in tracks with a circuitry for writing the data at beginning as well as a circuitry for reading the data at end. Logically tracks (one for every bit position) can be conceived as loops because read circuitry passes information back to write circuit that then re-creates bit values in track unless new data is written to circuit.

These devices come under category of semi-random operation since devices should wait till data has reached circuit for detection of charge packets. Access time to these devices isn't very high. At present this technology is used only in specific applications and commercial products are not available.


Related Discussions:- What is charge-coupled devices

What is the difference between intranet and extranet, What is the differenc...

What is the difference between intranet and extranet? Given table illustrates brief overview of the differences among the three kinds of the network: Network

Appropriate problems for ann learning, Appropriate Problems for ANN learnin...

Appropriate Problems for ANN learning: Conversely as we did for decision trees there it's important to know where ANNs are the right representation scheme for such job. Howeve

Bell lapadula model, A computer system provides protection using the Bell-L...

A computer system provides protection using the Bell-LaPadula policy. How would a virus spread if A) the virus were placed on the system at system low (the compartment that all o

What is open addressing, Open addressing:  The easiest way to resolve a co...

Open addressing:  The easiest way to resolve a collision is to begin with the hash address and do a sequential search by the table for an empty location. The idea is to place the

Systems analyst in modern business, Many medium-to-large information servic...

Many medium-to-large information services units for modern business have reorganized to be decentralized with an emphasis on dynamic teams andempowerment. In modern business system

Hardware required for superscalar processing, Q. Hardware required for supe...

Q. Hardware required for superscalar processing? For applying superscalar processing a number of special hardware should be offered that is discussed below: • The necessity

Difference between the specparam and parameter constructs, What is the diff...

What is the difference between the specparam and parameter constructs? Specparam is a special kind of parameter which is intended to specify only timing and the delay values. K

Linear model., what is linear model and its type

what is linear model and its type

What is process, In Windows, Thread is a unit of implementation. Process is...

In Windows, Thread is a unit of implementation. Process is the environment in which thread implements. Scheduler, schedules the Threads not the process. In Unix variants, Thread is

What are the phases of video production, Question 1: a) What are the p...

Question 1: a) What are the phases of video production? b) What do you mean by storyboards? c) What are the differences between Point and Area (or Paragraph) Text?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd