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

Hard disk architecture, Hard disk Architecture: A hard disk drive ...

Hard disk Architecture: A hard disk drive having the platters and motor hub removed indicating the copper colored stator coils surrounding a bearing at the cen

Sosail studies, whitch goods did the new england colonies exportto england ...

whitch goods did the new england colonies exportto england and what did they get in return

What is the linkage section used for, The linkage section is used to pass d...

The linkage section is used to pass data from one program to one more program or to pass data from a PROC to a program.

Computer Architecture, As an advocate of CISC architecture to RISC architec...

As an advocate of CISC architecture to RISC architecture, what are the merits and demerits of CISC to RISC architecture

Functions carried out by different operating systems, Functions carried out...

Functions carried out by different operating systems The below is a list of functions carried out by different operating systems: - Provides a user interface - Device man

What is polling, What is polling? Polling is a scheme or an algorithm t...

What is polling? Polling is a scheme or an algorithm to recognize the devices interrupting the processor. Polling is employed when multiple devices interrupt the processor by o

Control traffic flowing in and out of the network, Firewalls use one or mor...

Firewalls use one or more of three methods to control traffic flowing in and out of the network:  Packet filtering - Packets (small chunks of data) are examined against a s

Explain the difference between a subroutine and macro, Explain the differen...

Explain the difference between a subroutine & macro. It is inefficient to have to write code for standard routines.  For instance reading a character form the keyboard or savin

First-order inference rules - artificial intelligence, First-Order Inferenc...

First-Order Inference Rules -artificial intelligence: Now we have a perfect definition of a first-order model is,in the same way, we may define soundness for first-order infere

What are the end-to-end layers of osi structure, What are the end-to-end la...

What are the end-to-end layers of OSI structure The layers 4-7 of ISO-OSI reference model communicate with peer entities in end systems. There is not any communication with ent

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