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

TTL input logic circuit, I am building a testing device for the purpose of ...

I am building a testing device for the purpose of screening a 5801 BiMOS 8 BIT Parallel-input Latched Driver, I need help with input circuit to drive all 8 outputs one at a time. M

Evaluate the available received power, (a) Some antennas have a physical ap...

(a) Some antennas have a physical aperture area A that can be identified and is related to the effective area A e by A e = ρ a A, where ρ a is known as the aperture efficiency.

Explain sampling at the nyquist rate, Explain Sampling at the Nyquist Rate?...

Explain Sampling at the Nyquist Rate? What would happen if we reduced the sampling frequency? In the time domain, we would be getting less samples for each period. In the frequ

Power plant, A power company is developing an upgrade to an existing power ...

A power company is developing an upgrade to an existing power plant and needs to make a requirements decision with respect to the maximum power output capacity for the upgrade. Thi

Evaluate the straight-line and actual gain response, Q. Consider the circui...

Q. Consider the circuit shown in Figure in the time domain aswell as in the s-domain. Its transfer function V 2 (s)/V 1 (s) can be shown to be  which is a second-order bandpass tra

Signals and spectral analysis, Q. Signals and spectral analysis? Figure...

Q. Signals and spectral analysis? Figure shows the functional block diagram of a signal-processing system. The information source may be a speech (voice), an image (picture), o

Schematic diagram of a system in which the d/a converter, Q. Develop a sche...

Q. Develop a schematic diagram of a system in which the D/A converter of Figure can be employed in a digital voltmeter.

Calculate the ef?ciency of the induction generator, A three-phase, four-pol...

A three-phase, four-pole, 220-V, 60-Hz induction machine with a per-phase resistance of 0.5  is operating at rated voltage as a generator at a slip of -0.04, delivering 12 A of li

Operation performed by instruction out 47 h, Q. Illustrate the operation p...

Q. Illustrate the operation performed by instruction OUT 47 h, AL. Ans:  It transfers contents of AL to I/O port 47h. Notice that I/O port number appears as 0047h on the 16 b

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