What is read-only-memory, Computer Engineering

Assignment Help:

Q. What is Read-only-Memory?

Read only memory is an illustration of a Programmable Logic Device (PLD) it implies that binary information which is stored within a PLD is specified in some fashion and embedded within hardware. So information retains even when power goes.  

1549_What is Read-only-Memory.png

Figure: ROM Design

Above figure (a) presents block diagram of ROM.  It comprises 'k' input address lines and 'n' output data lines. An m ×n ROM is an array of binary cell arranged in m (2k = m) words of 'n' bits each. ROM doesn't have any data input since write operation is not defined for ROM. ROM is categorized as a combinational circuit and constructed internally with decoder and a group of OR gates. In general a m × n ROM (where m= 2k, k = no. of address lines) will have an internal k ×2k decoder and 'n' OR gate. Every OR gates has 2k inputs that are connected to each of the outputs of decoder.


Related Discussions:- What is read-only-memory

Convert the octal number 7401 to binary, Convert the octal number 7401 to B...

Convert the octal number 7401 to Binary. Ans. Octal number 7401 to Binary conversion: Every octal digit represents 3 binary digits. To change an octal number to binary number,

Show system call for cloning, Show System call for cloning.  Standard f...

Show System call for cloning.  Standard form of Clone function is as follows: Int clone (Int (*FN) (), void *child stack, Int flag, intargs,); Parameter FN is Pointer fro

Give a technical description of e-mail, E-mail system is mostly used for se...

E-mail system is mostly used for sending message electronically to group or individuals of individuals in inter and intra office environment. It needs networks to connect them. In

What is usb, What is USB USB (UNIVERSAL SERIAL BUS) is intended to conn...

What is USB USB (UNIVERSAL SERIAL BUS) is intended to connect peripheral devices like mouse, keyboards, modems and sound cards to microprocessor through a serial data path and

What is matrix addressing mode, What is Matrix Addressing Mode. Ans. M...

What is Matrix Addressing Mode. Ans. Matrix Addressing Mode: The arrangement which needs the fewest address lines is a square array of n rows and n columns for a whole memory

Implementation of a data entry application, Develop and submit an original ...

Develop and submit an original implementation of a data entry application. Identify and declare variables which will hold all data that needs to be entered to fill in the attached

Displaying the towers of hanoi solution, Once you have a solution to the To...

Once you have a solution to the Towers of Hanoi problem, we want to improve the display of the solution. The details of the implementation are up to you. At a minimum, your impleme

Discuss in brief the history of e-commerce, Discuss in brief the history of...

Discuss in brief the history of E-Commerce. History of E-commerce illustrated below: E-commerce began before personal computers were prevalent and has grown into a multibill

Example of weight training calculations, Example of Weight training calcula...

Example of Weight training calculations: Through having calculated all the error values associated with such each unit like hidden and output then we can now transfer this inf

Datatype functions for message passing, Q. Datatype Functions for Message P...

Q. Datatype Functions for Message Passing? Datatype: It denotes type of data in message. This field is essential in the sense that MPI supports heterogeneous computing and diff

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