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

Advantages and disadvantages of public key cryptography, What are the advan...

What are the advantages and disadvantages of public key cryptography? Advantages and Disadvantages: Improved security and convenience: private keys never require be trans

C program, a c program to implement multiple stack in a single array

a c program to implement multiple stack in a single array

Convert the following into pos form, Q. Convert the following into POS form...

Q. Convert the following into POS form 1.  (AB + C + DC)(AB + BC + D) 2.  WYZ + XYZ + W'X'Y + W'XYZ 3.  XY + XZ + X'YZ' 4.   (A+B'+C) (AB+AC') 5.   F(A,B,C,D)=M(0,3,

Move a layout cell, If you need to line up the cells next to each other you...

If you need to line up the cells next to each other you can resize and move layout cells as you need. You can change size of a layout cell by using one of its resize handles. Yo

How does tcp/ip decide the size of an ip fragment, How does TCP/IP decide t...

How does TCP/IP decide the size of an IP fragment? Explain. TCP/IP protocol utilizes the name IP datagram to refer to an Internet packet. The amount of data carried into a data

Difference between visual check and parity check, Difference between Visual...

Difference between Visual check and Parity check Visual check This is checking for errors by comparing entered data with original document (NOTE: this is not the same as

Which translator perform macro expansion, Which translator perform macro ex...

Which translator perform macro expansion, is called? Ans. Macro pre-processor perform macro expansion.

Set screen and leave screen, What happens if only one of the commands SET S...

What happens if only one of the commands SET SCREEN and LEAVE SCREEN is used without using the other? If we use SET SCREEN without LEAVE SCREEN, the program ends processing for

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