SEARCH KEYWORD -- Operating system


  Shortest command on Linux

Usually when we log in to a Linux system,. we may type some frequently used Linux commands such as pwd,ls, ps etc. All these commands are really simple but powerful with different options. But do you know what is the shortest command on Linux? The answer is w. According to Linux manual, w will show who is logged on and what they are doing on the system. w displays information about the users currently on the machine, and their processes. The header shows, in this order, the current time, how l...

   Linux,w,shortest command     2014-04-30 11:07:38

  Which Type of IT Career is Best For You?

Considering the growth of the information technology job market, a career in IT is an incredibly smart career move.  A career in IT can mean many things – you can become a network administration, website developer, database specialist, programmer or engineer. The job range is vast and can suit various personalities and levels of technical skill. Having a good insight into those job profiles is key to make the right decision about your career path. Here's a selection of some of the mos...

   career,IT,tips     2014-07-30 09:21:40

  How DNS lookup works

When accessing a website, a domain name would be needed normally. To get to the actual web server, the domain name must be mapped to an actual IP address and the IP address will be used to reach the web server. The process of finding the IP address from a domain name is called DNS lookup.  How does DNS lookup work? There are tons of domain name and IP address around the world, there must be some well-designed architecture to support fast lookup. This post will explain how this works. DNS Se...

   DNS,DNS LOOKUP     2022-09-09 23:11:03

  4 Things Every Great Online Teacher Knows

Virtual classrooms have become the new norm for education during the pandemic. Teachers from every school have to adjust to this new reality to ensure students keep learning even in the absence of a physical classroom setup.  Thankfully, there are various digital solutions to help teachers conduct online classes without much hassle. One such tool that has revolutionized the online learning market is a Learning Management System (LMS). For schools, the in-house learning management department...

   EDUCATION,ELEARNING,ILEARNING     2021-02-12 03:23:43

  How many bytes a boolean value takes in Java?

Have you ever wondered how many bytes a boolean value takes in Java? One byte, this might be the answer comes out of your mind right away. But is it? Let's dig in more. Per Oracle documentation on boolean value definition, there is below statement: boolean: The boolean data type has only two possible values: true and false. Use this data type for simple flags that track true/false conditions. This data type represents one bit of information, but its "size" isn't something that's precisely defin...

   JAVA,INTERVIEW,SIZE,BOOLEAN     2020-02-29 02:49:18

  Three images to understand immutability of String in Java

String is immutable in Java. This means once a String object is created and instantiated, that object cannot be changed. Any operation on the String object will create a new Object instead of operating on the original content. Below are three images to help you understand String immutability in Java. Declare a String String s = "abcd"; s stores the reference to the string content created in the heap. Assign the String reference to another String variable String s2 = s; s2 stores the same ...

   STRING,JAVA     2016-03-11 20:58:28

  Rust vs Go: how to choose the best programming language for your project?

Rust and Go, these two modern programming languages, with their unique advantages, are becoming hot topics in the developer community. Their competition in performance, security, simplicity, feature set, and concurrency not only influences developers' choices but also foretells future trends in software development. Battle of Performance: Rust's Precision vs. Go's Efficiency Rust, developed by Mozilla Research, has become the preferred choice for performance-sensitive applications due to its zer...

   RUST,GO,GOLANG,COMPARISON     2024-02-10 19:36:44

  You know what UTF-8 is when you see it?

When we are coding we may often see some encoding specifications in our source codes such as UTF-8,GB2312. Do you know what these encoding mean and why we need them? In this post, Julián Solórzano will introduce the most widely used encoding specification around the world accomodating all different character sets in the world. UTF-8 is a method for encoding Unicode characters using 8-bit sequences. Unicode is a standard for representing a great variety of characters from many ...

   UTF-8,Encoding     2014-04-18 22:13:44

  What should Microsoft do after Steve Ballmer steps down?

Steve Ballmer decided to retire from Microsoft within 12 months last week. Where should Microsoft head to and what should they do on their products to maintain their influence.Whether you like or hate Ballmer, and regardless of who will replace him as Microsoft new CEO, his voice became a very important part of different Microsoft conferences, Ballmer said : "We need a CEO who will be here longer term for this new direction."Steve Ballmer is criticized for many things. Under his control, Micros...

   Microsoft,CEO,Trend     2013-08-26 07:33:41

  Google feels the threat from Samsung

In response to Apple's iOS system, Google and Samsung stood on the same side. But with the increase of market share of Samsung Android devices, Google begins to feel the threat from Samsung.On MWC in Barcelona, a group of business executives said Google increasingly worried about Samsung after a private party. Because its equipment has occupied 40% of the Android devices, which could erode the Google advertising service. Google hopes manufacturers such as HTC and HP can challenge Samsung.It is r...

   Google,Samsung,Android     2013-02-27 21:12:17

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