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Download Virtual Clock ((BETTER))

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Loura Seif

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Jan 25, 2024, 6:28:06 PM1/25/24
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<div>Telling time has never been so fun! This online interactive clock merges both analog and digital versions of clocks so that students can practice telling time with each. Both a fun teaching and learning tool, students and teachers can adjust the controls based on the knowledge and skill level of students.</div><div></div><div></div><div></div><div></div><div></div><div>download virtual clock</div><div></div><div>Download Zip: https://t.co/HMJKoDviYh </div><div></div><div></div><div>Using the online teaching clock is simple. Simply drag the hour and minute hands around the clock to adjust the time. When teaching, turn the hour and minute hands on or off to simplify the clock for early learners. The controls are on the top right and left-hand corners. Conveniently, the clock features minute markers around the outside, helping young students learn to read the analog. Dash line circles, which can be toggled on or off in the lower left-hand corner, help students see which minute or hour the hands are pointing to. Turn the digital clock on or off using the button on the bottom right-hand corner. You can also choose between the 12-hour and 24-hour clock using the buttons in the bottom right-hand corner. Finally, add some color and interest to your clock by choosing from the colors on the bottom left-hand side.</div><div></div><div></div><div>The clock for learning time has movable hands. It has three main modes,the first demonstrates how to tell the time using an analogue clock. The second mode uses the the clock hands as a way of learning angles. The third mode uses the clock as a way to help understand fractions. The clocked can be altered to change colors and its overall styling.Note in this activity different controls are shown depending on the current mode</div><div></div><div></div><div>The controls above the mode selector arealways displayed. At the top you will see a digital clock, below arethree buttons. Click the 12 button todisplay in normal 12 hour format with AM/PM. Click 24button to change to the 24 hour format. Often you won't want todisplay the time at all, click off and thedigital clock will disappear.</div><div></div><div></div><div>The clock can be used to display the current time (based on the clockof the computer you are using). Click the real time to toggle this feature. This is useful as children can observehow the clock changes throughout the day. For random time problemsclick the random button and the clock handswill spin to produce a random time. So this is great for lots of quickfire questions.</div><div></div><div></div><div>So a brief example of how to use them would be click randomtime. Now ask what the class what time will be in say 1hour and 25minutes. To demonstrate this click reset, soboth minutes and hours are zero. Now drag the clock hand forward untilthe hours is 1 and the minutes is 25. The clock now displays theanswer to the initial problem.</div><div></div><div></div><div></div><div></div><div></div><div></div><div>In angles mode you will now see a protractorbutton click it to toggle the display of the protractor. Next is theauto toggle button, click to turn iton and you will notice the protractor lines up automatically tomeasure the angle. Move the clock hands and the protractor willfollow. Below the protractor button is a slideruse this to change the size of the protractor. When measuring anglesthe large clock hands can be made thin for better accuracy by clickingthin. To display the angle click Ang, and click Arcto display the angle arc. When dragging the minute hand it currentlysnaps to the nearest minute, turn this feature off by clicking snap. Finally the type of angle can bechanged using the select control. Soyou can choose the angle between the hour hand and minute hand, bothclockwise and anti-clockwise. Or measure the angle of the second handfrom 12 o'clock. This works very well with the realtimesetting as children can see a full angle of 360 turned everyminute. This helps learning of key angles such as 0, 90,270 etc. Also conversions such as 30 secs * 6 = 180</div><div></div><div></div><div>In the fraction mode a circle sector is painted from 12 o'clock to the minutehand position. Two large fractions are displayed the fraction of an hour shows the unsimplifiedfraction of minutesÃ60. The simplifiedfraction is the same fraction cancelled down when possible.</div><div></div><div></div><div>The simple button toggles removal ofthe hour and second hands to give a simplified view. You can alsoclick thin to toggle the thinner clockhands. The clock is divided according to the dividerlines control. The default setting is auto, this divides the clockaccording to the fraction displayed. Essentially the clock is divideddepending on the simplified fraction. However you can turn off automode and divide the clock according to the number selected.</div><div></div><div></div><div>Select the style mode to access controls.So for example to change the colour of the numbers, click numbers followed by a colour from the colourpicker. To remove the numbers completely click'X' in the colour picker. You can do this with other parts of the clock too, whichobviously can make reading the clock more difficult.</div><div></div><div></div><div>While working on a core physical design, do the I/O delays in the SDC file necessary to be modelled wrt a virtual clock to depict the top level clock.If i have a heirarchial clock in the design which in the top level chip would connect to the top level clock then can the I/O delays be modelled wrt the heirarchial clock which has physical existance in the core level design.</div><div></div><div></div><div>Conceptually, a virtual clock is any clock that does not have sinks within the block you're working on, so when you're seeking to model IO delays relative to a top level clock that is not present in the block a virtual clock is a great way to model this. If instead, the clock is both at the top level -and- has sinks within the block you're working on you can define your IO delays relative to the clock and it would *not* be virtual. However, in this second scenario it is sometimes advantageous to still model IO delays relative to a virtual representation of the clock because it gives you the flexibility of defining what the virtual clock latency is with a single statement in your SDCs, whereas if you choose to model IO delays with real clocks (ie, non-virtual) the IO clock latency is determined by the insertion delay of the clock tree is as observed within the block. Optionally, you can include the source latency in the IO delay values, but then your IO timings are locked to a pre-determined latency value which is hard to adjust later since it requires updated each and every IO delay value.</div><div></div><div></div><div></div><div>Hope this helps,</div><div></div><div>Bob</div><div></div><div></div><div></div><div></div><div>Hi guys! I would like to know how to apply a virtual background which could display the time live. I'd like to know if this is possible because I'd like to be subtle with my teacher, but not too subtle. He keeps forgetting the time and always exceeds his class schedules. Many of my classmates end up missing dinner because of this.</div><div></div><div></div><div>I know how to upload virtual backgrounds, and I know how to apply them in MS Teams. However, I'm not sure if applying virtual backgrounds are possible. If it is, could you please share and teach me how to apply them? If it's not possible, could there possibly be any other alternatives?</div><div></div><div></div><div>The configuration directive tinker panic 0 instructs NTP not to give up if it sees a large jump in time. This is important for coping with large time drifts and also resuming virtual machines from their suspended state.</div><div></div><div></div><div>It is also important not to use the local clock as a time source, often referred to as the Undisciplined Local Clock. NTP has a tendency to fall back to this in preference to the remote servers when there is a large amount of time drift.</div><div></div><div></div><div>Just to add some data about why NTPD is not a good solution. NTPD is a daemon that tries to compensate for the local clock drift; if the "internal clock" drifts away by X number of seconds in a day, then instead of jumping ahead/back like a forced command as in "ntpdate " NTPD tries to add/remove some cycles to the clock so that in time, normally within 15 minutes, the clock runs accurately enough and the compensation overcomes this X numbers of seconds that the servers gains/losses in a day. This has the advantage that you won't see any time in the day repeated, which is a MUST for for transactional systems.</div><div></div><div></div><div>But to be able to do this, NTPD requires that the local clock does a reasonably good job, which normally means that the local clock won't drift apart more than 42 seconds a day (more or less; I am not sure of the exact number). This normally is a problem in Virtual Machines, since the the clock is software controlled, so if the HOST has too much overload, you could see that the CLIENT's clock will run more slowly, and if it doesn't then the clock could run too fast. The problem here for NTPD is that the local clock is not reliable and doesn't have a constant drift in time; it may be more or less depending on the overload of the HOST system.</div><div></div><div></div><div>Edit just noticed you said you think NTP is not a good solution - why? If you're worried about the effect of the clock changing, NTP is the ideal, as ntpd does not jump the clock forwards or backwards, instead it "slews" the clock by speeding it up/down slightly until it's back in line with the correct time.</div><div></div><div></div><div>Problem: ntpd, when installed on a virtual machine running Ubuntu (I've had this on hosts with a variety of hypervisors such as KVM and VMware ESX) seem to be prone to severe clock drift. I haven't found any good method and not everyone seems to experience this.</div><div></div><div></div><div>I observed similar symptoms on a Linux machine running on VMware ESX. It seems that the drift (several minutes per day) was caused by having time synchronization both provided by NTP inside the VM and VMware tools. We solved our problem by disabling time synchronization in the VMware tools properties (in the VM properties in ESX). After that NTP was able to keep the clock in synch with a remote time server. If you prefer to edit the .vmx file manually, set tools.syncTime = "0".</div><div></div><div></div><div>Once installed and started, the VirtualBox Guest Additions will try to synchronize the guest time with the host time. This can be prevented by forbidding the guest service from reading the host clock:</div><div></div><div></div><div>A virtual clock is created if you use create_clock and then don't set a target (an input clock port). It's used with set_input_delay or set_output_delay as the reference clock that drives the "upstream" or "downstream" device to/from the FPGA.</div><div></div><div> 7c6cff6d22</div>
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