Comparing random versus sequential operations is one way of assessing application efficiency in terms of disk use. Accessing data sequentially is much faster than accessing it randomly because of the way in which the disk hardware works.

The seek operation, which occurs when the disk head positions itself at the right disk cylinder to access data requested, takes more time than any other part of the I/O process. Because reading randomly involves a higher number of seek operations than does sequential reading, random reads deliver a lower rate of throughput. The same is true for random writing. You might find it useful to examine your workload to determine whether it accesses data randomly or sequentially. If you find disk access is predominantly random, you might want to pay particular attention to the activities being done and monitor for the emergence of a bottleneck.

Everyone knows that with more RAM the processor can run more programs at the same time. But not everyone has deep understanding of how it really works. This video explains what is RAM and how more RAM can help you to run multiple programs at the same time. I wanted to add this as well: RAM is random access memory which means it can access any data randomly. You'll say that's very obvious. But wait, you'll get it completely when you understand what's opposite of RAM.

SAM is opposite of RAM and it means Sequential access memory. In SAM, if you have to access D then you must go through A, B, C first and then you can access D. But in RAM you can directly access D. I hope you get it. If you like this video, give a thumbs up, subscribe, check my other videos. If you have anything to say, feel free to comment below. --------------------------------------------------------------------------- ► Website and Social Links Current Blog - Old Blog - Google+ - Facebook - Twitter - YT Channel 1 - YT Channel 2 - YT Channel 3 - --------------------------------------------------------------------------- ► Attribution and Credits Copyright Stuff The Script is based on a video by - Dave Xiang.

Difference Between Serial And Random Access Memory Cards. Think Cell License Key 2013 here. The Secure Digital eXtended Capacity (SDXC) format, announced in January 2009 and defined in version 3.01 of the SD specification, supports cards up to 2 TB (2048 GB. In computing, sequential access memory (SAM) is a class of data storage devices that read stored data in a sequence. This is in contrast to random access memory (RAM) where data can be accessed in any order. Sequential access devices are usually a form of magnetic storage. While sequential access memory is read in.