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

Name all the switching schemes used in a digital exchange, Q. Name all the ...

Q. Name all the switching schemes used in a digital exchange. How call processing occur? Ans: The basic types of switching systems used are: 1.  Stronger Switching System

Show maximum power transfer, Q. Show Maximum Power Transfer? In order t...

Q. Show Maximum Power Transfer? In order to investigate the power transfer between a practical source and a load connected to it, let us consider Figure , in which a constant v

Draw a labeled block diagram of the encoder, Question: (a) The convers...

Question: (a) The conversion of a time varying analog audio signal into digital form is carried out using an electronic circuit known as a (signal) encoder. Draw a labeled bl

Modern physics, jsidjsiod dkndkdisd dknssbs bsjbabd asj u dhihf ujojdsajfs...

jsidjsiod dkndkdisd dknssbs bsjbabd asj u dhihf ujojdsajfs sjssaidhsidw idgsdusadidjwap ewkeowr krwnrh bwvr [ wrj wrj 1 nnwoi khiwrjw ko e woewerijr rjwr jr rjhpr

What is meant by microcontroller, What is meant by microcontroller? A d...

What is meant by microcontroller? A device which having the microprocessor with integrated peripherals like memory, serial ports, parallel ports, timer/counter, interrupt contr

Automatic meter reading and remote meter reading, Automatic Meter Reading a...

Automatic Meter Reading and Remote Meter Reading Automatic Meter Reading (AMR) and Remote Meter Reading (RMR) elaborate several systems which permit meters to be checked with

What is pipelined architecture, What is pipelined architecture? The com...

What is pipelined architecture? The computer is composed of two parts that operate asynchronously one part known as a BIU, fetches instruction from code memory while the memory

Multiprocessing - many processors many users many programs , Multiprocessin...

Multiprocessing - Many Processors Many users Many Programs  Multiprocessing or also  called  distributed processing system  provides solution to problems of above  timesharing

Find the force between the wires, Q. A magnetic force exists between two ad...

Q. A magnetic force exists between two adjacent, parallel current-carryingwires. Let I1 and I2 be the currents carried by the wires, and r the separation between them.

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