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

Transformer, Why we provide the short circuit and open circuit test in tran...

Why we provide the short circuit and open circuit test in transformer

Active filter design, Design a wide band pass filter with cut-off frequency...

Design a wide band pass filter with cut-off frequency f L = 400 kHz, f H = 600 kHz, and a pass-band gain = 10. The roll-off rate at the cut-off frequency should be at least 4

Find the inductor current and voltage, Q. The energy stored in a 2-µH induc...

Q. The energy stored in a 2-µH inductor is given by w L (t) = 9e -2t µJ for t ≥ 0. Find the inductor current and voltage at t = 1 s.

Structure of bipolar junction transistor, Structure of Bipolar junction tra...

Structure of Bipolar junction transistor:  A BJT contains three differently doped semiconductor regions that are: emitter region, base region and collector region. These regio

Bode plot phase ad gain margin, Using Bode plot calculate (a) Phase margin ...

Using Bode plot calculate (a) Phase margin (b) Gain margin (c) Stability of closed loop system. The open transfer function of the system is t=30/(s+2)/(s+3)Using Bode plot calcula

Find the new operating point in transistor, Q. A transistor in a fixed bias...

Q. A transistor in a fixed bias amplifier circuit was replaced by another transistor of beta equaling 150 instead of 60.if IB of transistor is equal to 100 microampere and collecto

Explain how to represent power lines, Explain How to Represent Power Lines?...

Explain How to Represent Power Lines? The equivalent circuit of a power line depends on the length of the line and on the accuracy of the model required. In general, any power

What do you mean by conditional selection, Q. What do you mean by Condition...

Q. What do you mean by Conditional selection? Conditional selection: When a marker is instructed to create a connection from a given incoming trunk to a given outgoing trunk, t

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