What is fetching in computer

Asked 4 years, 5 months ago. Active 4 years, 5 months ago. Viewed 2k times. Are there other meanings and contexts? Veliko Veliko 1 1 gold badge 5 5 silver badges 22 22 bronze badges. Add a comment. Active Oldest Votes. Fetching is commonly used to describe a transfer from a storage system of a "slower" kind into a "faster" one: Fetching data from disk into a memory buffer Fetching data from memory into CPU register Fetching data from RDBMS into memory, and so on.

Sergey Kalinichenko Sergey Kalinichenko k 71 71 gold badges silver badges bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. FutureLearn uses cookies to enhance your experience of the website.

All but strictly necessary cookies are currently disabled for this browser. Turn on JavaScript to exercise your cookie preferences for all non-essential cookies. You can read FutureLearn's Cookie policy here.

It is a great course for everyone that want to learn deep computation concepts. Every person that work with IT should did. You learn a lot in this course. Even if you done some computing before. Really good for understanding the concept and help your students.

It was interesting to learn about logic gates and other major components within a computer as well as the assembly language. Category: FutureLearn Local , Learning. Category: Current Issues , General.

Category: Digital Skills , Learning , What is. We offer a diverse selection of courses from leading universities and cultural institutions from around the world. These are delivered one step at a time, and are accessible on mobile, tablet and desktop, so you can fit learning around your life.

You can unlock new opportunities with unlimited access to hundreds of online short courses for a year by subscribing to our Unlimited package. Build your knowledge with top universities and organisations. Learn more about how FutureLearn is transforming access to education.

Learn more about this course. Fetch-decode-execute How does a computer go from a set of stored instructions to running them? View transcript. The registers are also shown, where data can be temporarily stored. The program counter starts at This means that the first address in RAM that the computer will look for an instruction is at The computer needs somewhere to store the current address in RAM that it is looking for. This is what the memory address register is for.

The time it takes to fetch an item is known as the fetch time or fetch cycle, and is measured in clock ticks. The cursor advances through the rows, one at a time, to allow sequential processing of records. Fetch is compatible with all recent browsers including Edge, but not with Internet Explorer. Therefore, if you are looking for maximum compatibility, you will continue to use Ajax to update a web page.

If you also want to interact with the server, the WebSocket object is also more appropriate than fetch. An API is a set of definitions and protocols for building and integrating application software. JSON format is used for serializing and transmitting structured data over network connection. It is primarily used to transmit data between a server and web applications. It can be used with modern programming languages. Short Answer: Yes.

It is useful to learn JSON. It is one of the major formats that applications use to send information. Square brackets hold arrays and values are separated by , comma.