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

Give the register organization of 8257, Give the register organization of 8...

Give the register organization of 8257? The 8257 do the DMA operation over four independent DMA channels. Each of the four channels of 8257 has a couple of two 16-bit registers

Complement method of binary subtraction , complement method of binary subtr...

complement method of binary subtraction This  method is  used for  subtraction  as subtraction is  converted to addition. Use following  steps  to perform  subtraction ;

Electromagnetic torque, The torque produced by each conductor in the field ...

The torque produced by each conductor in the field will be:  where A is the area of the armature winding in the magnetic field, Ia is the current in armature winding, and B

Illustrate the photo-conductive cell, Illustrate in detail digital encoders...

Illustrate in detail digital encoders. Illustrate the following with their application: Photo-conductive cell Photo-voltaic cell

Explain the significance of v number, Explain the significance of V number....

Explain the significance of V number. Ans: V number or V parameter or normalized cutoff frequency is one of the parameter which is used to calculate the maximum number o

Design of matching networks for amplifiers, Design a low noise amplifier us...

Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4

Saturate the transistor with the base overdriven, For the circuit of Figure...

For the circuit of Figure, given that V CC = 5V, R C = 1k, β = 100, and the high range is 4 to 5 V, choose R B such that any high input will saturate the transistor with the ba

Commercial losses in electrical systems, Commercial Losses in Electrical Sy...

Commercial Losses in Electrical Systems Commercial losses are caused by pilferage, theft, defective meters, and errors in meter reading and in estimating un-metered supply of

Telecommunication, Design a low noise amplifier using an Infineon RF transi...

Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4

Amper circuital lw, the plot of amper circuital law by using matlap?

the plot of amper circuital law by using matlap?

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