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Antonio MA

What Is Operating System Scheduling? - 0 views

www.wisegeek.org/perating-system-scheduling.htm

6.1_resource_management 6.1.7 Scheduling

shared by Antonio MA on 06 Jan 15 - No Cached
  • Antonio MA on 06 Jan 15
     
    Operating system scheduling is the process of controlling and prioritizing messages sent to a processor. An internal operating system program, called the scheduler, performs this task. The goal is maintaining a constant amount of work for the processor, eliminating highs and lows in the workload and making sure each process is completed within a reasonable time frame.
mauriciopedro

Dedicated Server Operating Systems at ServerPronto - 0 views

www.serverpronto.com/operating-systems.php

6.1_resource_management 6.1.8 operating system OS dedicated

shared by mauriciopedro on 06 Jan 15 - No Cached
  • mauriciopedro on 06 Jan 15
     
    ServerPronto gives you a huge list of server operating systems to choose from when configuring your server- more than any other host! The options range from free linux and unix solutions to enterprise linux and windows options.
William Trodd

HowStuffWorks "How does a traffic light detect that a car has pulled up?" - 0 views

auto.howstuffworks.com/...question234.htm

7.1_control 7.1.1

shared by William Trodd on 09 Jan 13 - No Cached
  • The reason for this strange behavior is the inductor. When current first starts flowing in the coil, the coil wants to build up a magnetic field. While the field is building, the coil inhibits the flow of current. Once the field is built, then current can flow normally through the wire. When the switch gets opened, the magnetic field around the coil keeps current flowing in the coil until the field collapses. This current keeps the bulb lit for a period of time even though the switch is open.
  • il of wire around a piece of iron (yellow), and a switch. The coil of wire is an inductor. If you have read How Electromagnets Work,
  • and then come back and cut a groove in the asphalt with a saw. The wire is placed in the groove and sealed with a rubbery compound. You can often see these big rectangular loops cut in the pavement becau
  • ...61 more annotations...
  • however, detectors are common. They may detect when a car arrives at an intersection, when too many cars are stacked up at an intersection (to control the length of the light), or when cars have ente
  • ch more induct
  • coil is. Now you park a car over the coil and check the inductance again. The inductance will be much larger because of the large steel object positioned in the loop's magnetic field. The car parked over the coil is acting like the core
  • 5 feet in diameter, containing five or six loops of wire. You cut some grooves in a road and place the
  • now" you are there -- the instant you pull up, they change! How do the
  • traffic light detect that a car has pulled up and is
  • The number of coils
  • e material that the coils are wrap
  • h the induc
  • completely different. The light bulb is a resistor (the resistance creates heat to make the f
  • mly. Most of the current should follow the low-resistan
  • ulb burns brightly and then gets dimmer. When you ope
  • the bulb burns very brightly and then quickly goe
  • thing from lasers to rubber hoses filled with air! By far the most common
  • are all sorts of te
  • e lights don't have any sort of detectors. For example, in a large city, the traffic lights may simply operate on timers -- no matter
  • e is something exotic about the tra
  • detect your presence?
  • r detecti
  • In the subu
  • nductive loop. An inductive lo
  • face. To install the loop, they lay th
  • the road
  • e embedded
  • work by detecting a change of inductance. To understand the process, let's first look at what inductance is. The illustration on this page is helpful.
  • see here is a battery, a light bulb, a c
  • e is a normal flashlig
  • take the inductor out of this circuit, then w
  • circuit as sho
  • in the bulb glo
  • , the behavior is
  • he wire in the coil has much lower resistance (it's just wire), so what you would expect when you turn on the switc
  • appens instead is that when you close the switch,
  • n the switch,
  • he capacity of an inductor is controlled by two factors
  • ped around (the core)
  • ance than air or any other non-magnetic core would.
  • hat can measure the inductance of a coil,
  • n inductor gives it mu
  • what time of day it is,
  • country roads,
  • there is going to be a lot of tra
  • bs and
  • ed a turn lane (in order to activate the arrow light).
  • asphalt
  • nductive loops
  • bvious.
  • se the compound i
  • the light to change? #brandscape{ position: fixed; text-align: center; margin:0px auto; top: 0px; z-index:0; cursor: pointer; background-image: url(http://static.ddmcdn.com/gif/hsw-sysk-brandscape-07-03-12a.jpg ); background-position: top center; } #root{ width:60px; }
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migueleusebio

Polling - 0 views

en.wikipedia.org/...Polling_%28computer_science%29

6.1_resource_management 6.1.7

shared by migueleusebio on 06 Jan 15 - No Cached
  • migueleusebio on 06 Jan 15
     
    Polling, or polled operation, in computer science, refers to actively sampling the status of an external device by a client program as a synchronous activity. Polling is most often used in terms of input/output (I/O), and is also referred to as or software-driven I/O .
mauriciopedro

Interrupt - 0 views

en.wikipedia.org/Interrupt

6.1_resource_management OS interrupt operating system 6.1.7

shared by mauriciopedro on 06 Jan 15 - Cached
  • mauriciopedro on 06 Jan 15
     
    wikipedro
Antonio MA

Firefox OS - 0 views

developer.mozilla.org/...Firefox_OS

6.1_resource_management 6.1.8 Mozilla OS

shared by Antonio MA on 06 Jan 15 - No Cached
  • Antonio MA on 06 Jan 15
     
    Firefox OS is the new mobile operating system developed by Mozilla, based on Linux and Firefox's powerful Gecko rendering engine.
leonor1614

Ubuntu Kylin - 0 views

www.ubuntu.com/...ubuntu-kylin

6.1_resource_management 6.1.8 dedicated OS

shared by leonor1614 on 06 Jan 15 - No Cached
  • leonor1614 on 06 Jan 15
     
    Ubuntu Kylin is a free PC operating system created for China. It includes all the features you've come to expect from Ubuntu, alongside essential Chinese software and apps. Unlike its rivals, its interface has been designed specifically to put Chinese users first - and with new support for touch screens and HiDPI monitors, it runs beautifully on all kinds of hardware.
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