Programmable rom (prom) , Basic Computer Science

Assignment Help:

PROGRAMMABLE ROM (PROM):

The user can program a PROM after purchase.  Each memory bit element in the PROM contains a nichrome or silicon link that acts as a fuse.  The user can selectively 'but out' or 'blow' these fuses by applying pulses of current to the appropriate pins of the IC.  A memory element with a non-ruptured fuse stores a 1 and a ruptured fuse stores a 0.  The programming is irreversible, so it must be right first time.  Figure 11 shows the circuit for a PROM.

596_prom.png

PROM Circuit

PROMs are capable of high operating speeds, but consume a relatively large amount of power.  However, since they are non-volatile, they can be switched off when not being accessed. 

 


Related Discussions:- Programmable rom (prom)

Explain kinematics modeling in virtual reality, Question 1 How can you cre...

Question 1 How can you create surface with 3D Scanner in geometric modeling? Question 2 Explain kinematics modeling in virtual reality Question 3 Describe object hierarc

#title.flow chart., akrenda club has just opened their jym and pools servic...

akrenda club has just opened their jym and pools services. They need a system that can keep record of total sales of each. The club has silver and gold members. The silver members

FEMAL. REPODUCATIVE. SYSTEM, Ask question #Minimum. Hello. ser can. y...

Ask question #Minimum. Hello. ser can. you. tell. me. that. what. is. the. batter. side. for. BIOLOGY. Students. from. class. 12. / xii. 100 words accepted#

Virtual memory, What is virtual memory? How address mapping is done in cach...

What is virtual memory? How address mapping is done in cache memory? Elaborate your answer with examples.

Execute a command in operating system, Execute a command in operating syste...

Execute a command in operating system: In order to execute a command OS does the following steps:   It accepts a command from a user through mouse clicks or from t

Boolean expression, Problem 1. Obtain the truth table and a Boolean exp...

Problem 1. Obtain the truth table and a Boolean expression for the following conditions: x is 0 if any two of the three variables are 1. x is 1 for all other conditions.

Laser printers, Laser Printers: These printers can print a whole page ...

Laser Printers: These printers can print a whole page at one command, offer highest quality and can combine text, graphics, etc. They are generally restricted to A4 paper and

Backup software, Backup software: A number of Backup software are avai...

Backup software: A number of Backup software are available that assist you in taking backup of your important data on the computer. Selecting between various back-up software

Write a note on file permissions on linux, Question 1 Write a note on a...

Question 1 Write a note on advantages and disadvantages of Linux 2 Write a note on "File Permissions" on linux 3 Explain the usage of following Linux commands Cd kill

Potential risks to information systems, Question 1 Write about Pot...

Question 1 Write about Potential Risks to Information Systems Factors to be addressed for making information systems more secure Question 2 Write about the foll

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