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 quantization error, Define Quantization Error? Quantization by i...

Define Quantization Error? Quantization by its nature introduces errors. There are two major sources of errors. One is sampling, that just takes the amplitude of the signal at

CAO, conditional branch instruction

conditional branch instruction

P-N junction, Explain how a p-n junction functions as a rectifier

Explain how a p-n junction functions as a rectifier

What is own-exchange routing, Q. What is Own-exchange routing? Distribu...

Q. What is Own-exchange routing? Distributed routing or own-exchange routing enables alternative routes to be chosen at intermediate nodes. Hence the strategy is capable of res

Explain nodes analysis, Nodes analysis Analysis using KCL to solve for ...

Nodes analysis Analysis using KCL to solve for voltages at every common node of the network and as determines the currents by and voltages across every elements of the network.

Evaluate the travel time of signal, Suppose that the length of a 10Base-5 ...

Suppose that the length of a 10Base-5 cable is 2500 metres. If the speed of propagation in a thick co-axial cable is 60% of the speed of light, how long does it take for a bit to

Uninterruptable power supply , Uninterruptable power  Supply An unint...

Uninterruptable power  Supply An uninterruptible  power supply  provides emergency power when  utility power  is not  available. It  maintains the supply  under  all condition

Find the bandwidth of the circuit, Q. A simple parallel resonant circuit wi...

Q. A simple parallel resonant circuit with L = 50 µH is used to performthe frequency selection. The circuit is to be tuned to the first station at a frequency of 1000 kHz. In order

What are the benefits of ccs over in-channel signalling, Q. What are the be...

Q. What are the benefits of ccs over in-channel signalling? The benefits of CCS over in-channel signalling are listed below: a. Information can be exchange between processor

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