Explain read-only memory, Electrical Engineering

Assignment Help:

Q. Explain Read-only memory?

ROM is nonvolatile (because it maintains its contents even when its power is shut off) and is used to store data and programs that do not change during the operation of the system. The mask-programmed ROMs are read-only devices that are programmed for data storage during the manufacturing of the chip itself. These are generally less expensive devices for mass production. Character-font memory for laser printers is a good example. Programmable read-only memory (PROM) is a field-programmable memory that is fabricated by the manufacturer containing all 0s and is programmed irreversibly by the user by electrically changing appropriate 0s to 1s. PROMs are quite economical in small quantities. Erasable programmable read-only memory (EPROM) is nonvolatile and widely used in microprocessor systems for program storage. It can be erased by shining an ultraviolet light and reprogrammed if necessary. These are produced in lowtomoderate volumes.


Related Discussions:- Explain read-only memory

Define short lines, Define Short Lines? For short power lines (up to 50...

Define Short Lines? For short power lines (up to 50 miles; 80 km),  the effects of the shunt capacitance and leakage resistance are negligible. Hence the line may be represente

Poly phase induction motor, Using the approximate equivalent circuit in whi...

Using the approximate equivalent circuit in which the shunt branch is moved to the stator in put terminals, show that the rotor current, torque, and electro magnetic power of a pol

Explain the ascii character set - microprocessor, Explain the ASCII Charact...

Explain the ASCII Character Set? Most programming languages have a means of defining a character as a numeric code and, conversely, converting the code back to the character. ASC

Explain mobility, Explain Mobility . Average drift velocity of electrons...

Explain Mobility . Average drift velocity of electrons (e - ) in an applied field is proportional to the field, the absolute magnitude of the proportionality factor eq/m, termed

Grey code to excess 3 using nand gates, I need to do this experiment. Can a...

I need to do this experiment. Can anyone help me out doing this

Describe the process design and application, Disinfection of water streams ...

Disinfection of water streams originating from potable water plants is key in protecting environmental health. Describe the process design and application, along with potential pro

Describe the phasor equations, Q. Describe the following phasor equations r...

Q. Describe the following phasor equations represented in the time domain: (a) ¯ E = K1e-¯ γz (b) ¯ E = K2e ¯ γz where z is the space coordinate, K1 and K2 are constants,

How to convert binary to decimal number, Q. How to convert Binary to Decima...

Q. How to convert Binary to Decimal number system? It is extremely easy to convert from a binary number to a decimal number. As like the decimal system, we multiply each digit

Find the impedance of the series combination, Q. An RL series circuit carri...

Q. An RL series circuit carries a current of 0.02 cos 5000t A. For R = 100  and L = 20 mH, find the impedance of the series combination and determine the voltage across the series

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