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CISC VS RISC computers (all details)

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CISC Introduction            The term "CISC" (complex instruction set computer or computing) refers to computers designed with a full set of computer instructions that were intended to provide needed capabilities in the most efficient way. Intel's   Pentium   microprocessors are CISC microprocessors. CISC is a   processor design   where single   instructions   can execute several low-level operations (such as a load from   memory , an arithmetic   operation , and a   memory store ) or are capable of multi-step operations or   addressing modes   within single instructions. The primary goal of CISC architecture is to complete a task in as few lines of assembly as possible. This is achieved by building processor hardware that is capable of understanding & executing a series of operations, this is where our CISC architecture introduced. The CISC approach attempts to minimize the number of instructions per program, sacrificing
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DHCP principle , DHCP server and client communication process

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1. Explain with principle: the DHCP server and client communication process DHCP stands for Dynamic Host Configuration Protocol. It handles the automatic assignment of IP addresses and other configuration settings for devices on your network. DHCP automates Network and Sharing Center in your control panel. This is especially good for people who have laptops, aren't hooked up to the Internet all the time and often move from place to place with their portable devices. They can simply get a new IP address as needed without having to do it manually. DHCP is designed to make the assignment of IP addresses and other network configuration information faster and easier. DHCP is a protocol that uses Level 4 on the OSI model. It communicates using User Datagram Protocol (UDP) datagrams through UDP Port 68. DHCP works with most current and past Windows clients, and also Linux, Macintosh, and many network-capable printers. DHCP is desi
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Recommendation System literature review | Building a recommendation system

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People have always relied on the recommendations from their peers or the advice of experts to support their decision making. Amazon.com has been using collaborative filtering for a decade to recommend products to their customers, and Netflix valued improvements to the recommender technology underlying their movie rental service at $1M via the widely published Netflix Prize [6]. Research on recommender algorithms garnered significant attention in 2006 when Netflix launched the Netflix Prize to improve the state of movie recommendation. The objective of this competition was to build a recommender algorithm that could beat their internal CineMatch algorithm in offline tests by 10%. It sparked a flurry of activity, both in academia and amongst hobbyists. The $1 M prize demonstrates the value that vendors place on accurate recommendations [8]. Recommender Systems provide the users with the suggestions of information that may be useful to the users to make their decisions on various sit
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Facebook will now offer to hide your ex from you after a breakup

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The more ubiquitous Facebook becomes around the world, the more likely you are to one day have an ex-boyfriend, -girlfriend, or -spouse using the service. So what happens when you break up, and you continue to see the trail of their life without you all over the News Feed? Until now, you've had to hide that person, unfriend them, or block them outright. But that won't sever the connection altogether — you may be still tagged in your ex's old photos, for example, or see their name pop up as a suggestion when you write a message.
That starts to change today with new tools that will pop up when you go to change your relationship status. The tools have three major components: limiting how much of your ex you see on Facebook; limiting how much your ex sees of you on Facebook; and limiting people's ability to see past posts where the two of you are together. "This work is part of our ongoing effort to develop resources for people who may be going through difficult moments in their lives," Facebook product manager Kelly Winters wrote in a blog post. "We hope these tools will help people end relationships on Facebook with greater ease, comfort and sense of control."
Much of the effect the new tools have could be accomplished simply by hiding your ex from the News Feed. But not everyone knows that, not least because Facebook's privacy settings regularly change in ways that are not always apparent to users. What's interesting here is how the company is proactively reaching out to users at the time they go to make their breakup Facebook official, walking them through ways they can shield themselves from their ex online.
Technically, the changes are part of a test that begins on mobile devices today in the United States. Facebook says the tools, which are optional to use, will roll out more widely based on user feedback.

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