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

Dc, what is quantization noise

what is quantization noise

Electric helicopter, examples in building electric helicopter using cardboa...

examples in building electric helicopter using cardboard, balsa wood, scotch tape, glue, binder clips, rubber bands, rubber stoppers, etc. attached to a 12v power supply

Osillators.., what ie the use of mutual inductance in a hartley oscillator

what ie the use of mutual inductance in a hartley oscillator

Three byte instruction , Three byte instruction The  instruction which...

Three byte instruction The  instruction which  have 16  bit data address  as its  operand  are three byte  instruction. They  need three  memory  locations to store  them in m

Find the maximum radiation intensity, Q. An antenna has beam widths of 3° a...

Q. An antenna has beam widths of 3° and 10° in orthogonal planes and has a radiation ef?ciency factor of 0.6. Find the maximum radiation inten- sity if 1 kW is applied to the anten

Transformer, What is the difference between primary and secondary winding o...

What is the difference between primary and secondary winding of transforme

Life interactive ups systems , Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE Life   Interactive UPS Systems

Define memory for a digital computer, Q. Define Memory For a digital comput...

Q. Define Memory For a digital computer? For a digital computer which stores both programs and data, memory can be divided into three types: random-access memory, mass storage,

Compensating windings, #full discuss on compensating windingsquestion..

#full discuss on compensating windingsquestion..

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