What is random access memory, Computer Engineering

Assignment Help:

What is Random access memory (RAM)

This is a volatile memory (i.e. contents are lost when computer is switched off). A user can write or delete data and read the contents. Before a program can be ran it should first be loaded into RAM that allows CPU to access the program. Battery-backed RAMs overcome data loss on switching power off though are outside the scope of these booklets.

(NOTE: For completeness, it's worth mentioning that two types of RAM exist termed as SRAM (static RAM) and DRAM (dynamic RAM) - SRAM doesn't need to be constantly refreshed to retain its memory unlike DRAM. Also consider that computers use cache which is a part of memory made from SRAM. Memory caching works as programs generally access the same data or instructions over and over again. By retaining as much information as possible in SRAM, computer operates more quickly (cache is generally termed level 1, 2 or 3 (termed L1, L2 or L3)).

 


Related Discussions:- What is random access memory

Which one is better hardware or software firewall, Which one is better hard...

Which one is better hardware or software firewall While deciding whether to buy a hardware or software firewall, the user must consider important factors such as performance an

Explain the significance of encryption, Problem: (i) What are the main...

Problem: (i) What are the main threats that an organisation holding sensitive data, such as Public Data, on computer storage must guard against? (ii) To protect such data,

What is dots per inch, Q. What is Dots per Inch? DPI (Dots per Inch) is...

Q. What is Dots per Inch? DPI (Dots per Inch) is a measure for actual sharpness of onscreen image. This relies on both the resolution and size of the image. Practical experienc

Microcomputer - controlled breadmaking machine, Q. Microcomputer - Controll...

Q. Microcomputer - Controlled Breadmaking Machine? Figure shows a simplified schematic diagram of a microcomputer-controlled breadmaking machine. A microcomputer along with its

Define the operand data types, Operand is that part of an instruction which...

Operand is that part of an instruction which specifies the address of source or result or the data itself on which the processor is to operate. Operand types typically give operand

What is the purpose of guard bits, What is the purpose of guard bits used i...

What is the purpose of guard bits used in floating point operations? The guard bits are the extra bits which are used to retain the in-between steps to enhance the accuracy in

Calculate blocking probability in a two stage network, In a two stage netwo...

In a two stage network there are 512 inlets and outlets, r=s=24. If the probability that a given inlet is active is 0.8, calculate: Blocking probability Given: N =M =512,

Explain about the biometrics, Explain about the Biometrics  This inclu...

Explain about the Biometrics  This includes obtaining data and identifying characteristics automatically in security systems e.g. use of palm prints, finger prints, facial ima

How many lists can a program can produce, How many lists can a program can ...

How many lists can a program can produce? Every program can produce up to 21 lists: one basic list and 20 secondary lists.  If the user makes a list on the next level (that is,

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