0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the difference between direct access and sequential access?
, Both terms "direct access" and "sequential access" as you must have guessed refer to accessing schemes in the file system. In broadest sense difference between these two can be stated like this -In sequential access data is stored at random locations. -In direct access data is stored at sequential locations. ( Ironically this is true No matter what kind of first impression we get when we hear it for the first time. ) -In sequential access addition of data is fast but retrieval of data is slow. -In direct access addition of data is slow as reordering of data blocks may be needed to put current data block after the last used data block for the file. But retrieval of data is fast. -Data structure implementing Sequential access is linked list. -Data structure implementing Direct access is an Array. Application areas:- A situation where rate of addition of data is much larger compared to retrieval of data Sequential access is preferred, in opposite situation Direct access is more suitable. Regards, Prime There are technical explanations as to how it works, but in simple terms, direct access means going straight to the record you want, whereas sequential access means going through all records one by one until you find the one you want.
Differentiate between Direct Access and Sequential Access methods?
the difference between them is that direct access, such as a DVD allows you to go directly to a specific piece of data using an index, whereas sequential access is when data is chronologically stored on a VCR tape or Magnetic tape, you must go through all the data before you reach the data your looking for.
Where is the boot routine stored on microcomputers?
The boot routine is stored in the memory assembly on microcomputers. The Direct Memory Access chip was an important part of the original IBM PC and has become an essential component of modern computer systems.
File access methods explain?
A serial access file has data stored on it in the order in which it was written. Each new record goes at the end of the file. To read a record from the file it is necessary to read through all the preceding records first.A sequential access file has data stored on it in the order of the data in a key field.A direct access file is one where any record can be accessed without having to access other records first. This is also known as random access.
How does Direct Access work?
Direct access is designed to give the user of a computer direct access to their internal network over the internet, and is in many ways similar to VPN's.
Where record in access stored?
In a table.
Which nation had direct access to the pacific ocean?
No European nation , until 1763 that Russia had direct access to the Pacific.
Difference between direct and sequential access?
RAM or Random Access Memory is used for fast computer memory. The word "Random" is a bit of a misnomer, as there is nothing random about access to this memory. What it actually means is that you can select an address at "random", that is, any address within the capability of the memory, and read or write data to/from that address just as fast as you could read or write data to any other address. In other words, data stored anywhere in the memory can be accessed quickly. Serial memory is different in that access time depends upon where on the medium the data is stored. Examples are magnetic tape, optical disk, magnetic disk. "arbitary access" is not a term used in electronics that I can find. I think it is just another term for "random access".
What companies offer direct market access?
Not many companies offer direct market access. The ones that do offer direct market access include: London Stock Exchange, NASDAQ, and AVATAR Securities.
Serial and direct access?
direct access allows you to access the needed record directly with serial access u have to go through all the others before arriving to the desired one
What is a protocol used to access information stored in a directory?
lightweight directory access protocol
Where is data temporarily stored?
Read access memory
