Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What is Dynamic Random Access Memory?
RAM technology is divided into 2 technologies: Static and dynamic. A dynamic RAM (DRAM) is made with cells which store data as charge on capacitors. Absence or presence of charge on capacitor is interpreted as binary 1 or 0. Since capacitors have a natural tendency to discharge, dynamic RAM needs periodic charge refreshing to maintain data storage. Term dynamic corresponds to this tendency of stored charge to leak away even with power continuously applied.
Figure below is a typical DRAM structure for an individual cell which stores one bit. The address line is activated when bit value from this cell is to be read or written. Transistor acts as a switch which is closed (allowing current to flow) if a voltage is applied to address line and open (no current flows) if no voltage is present on address line.
For write operation a voltage signal is applied to bit line; a high voltage represents 1 and a low voltage represents 0. A signal is then applied to address line allowing a charge to be transferred to capacitor.
For read operation when address line is selected transistor turns on and charge stored on capacitor is fed out onto a bit line and to the sense amplifier. Sense amplifier compares capacitor voltage to a reference value and decides if cell contains logic 1 or logic 0. The read out from cell discharges the capacitor that should be restored to complete operation.
Even though the DRAM cell is used to store a single bit (0 or 1) it is necessary an analog device. Capacitor can store any charge value within a range. A threshold value determines whether charge is interpreted as 1 or 0.
Explain the meaning of CONNECT socket primitive. The connect Primitive: Clients utilize procedure connect to establish connection with an exact server. The form is
Why is C standard library needed? C Standard Library: C would have been a tough programming language in absence of the standard library. The standard library in C contains
Explain the concept of top-down design for a program. Top down Design: A top-down approach is fundamentally breaking down a system to gain insight into its compositional s
What is domain analysis? Domain analysis is concerned with devising a precise, concise, understandable and correct model of the real world. Analysis starts with problem statem
Parallelism based on Grain size Grain size : Grain size/ Granularity are a measure that defines how much computation is involved in a process. Grain size is concluded by count
Tools for Performance Measurement The reason behind these algorithms has been to gain a speed up and improve the performance. After the parallel algorithm has been written and
Explain the Client-Server Interaction Using Messages As we have learned, client- server interaction may be managed in many ways. A message- based interaction is perhaps the bes
Q. Explain Register Indirect Addressing? In this addressing technique the operand is data in memory pointed to by a register. Or we can say in other words that the operand fie
Rule in a single direction - equivalences rules: Hence there the power to replace sub expressions always allows use to prove theorems with equivalences: as given in the above
This unit starts by discussing the importance of involving users in the interaction design process, explaining the reasons why user involvement can be useful, the different degrees
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd