10 things every new Mac owner should know

Your new Mac is easy to set up and use. Make sure you know these important basics after you get started. So, you've finally jumped ship and entered the Apple ecosystem. Welcome to the family! We Mac users love to share our knowledge, so please join the iMore forums if you have any questions. In the meantime, here are a few tips you should know about using your new Mac. 1. Set up a backup plan for your Mac No matter how much you store in iCloud, you should always back up your Mac. Time Machine is the easiest method, but there are other plans that might work better for you. The choice is yours. How to set up and use Time MachineHow to choose a backup plan for your Mac 2. Sign into iCloud One of the best reasons to switch to Mac is the Apple ecosystem, which is largely fueled by iCloud syncing. You can access photos, documents, movies, music, and more, all with your iCloud account. So, make sure you are signed in to iCloud using the Apple ID you use to sync your iOS, tvOS, and watchO…

How does Touch ID work? and more isue about touch id

How does Touch ID work? On an iOS device, there's a capacitive ring around the Touch ID sensor; on the new MacBook Pro, the entire Touch ID sensor is capacitive. When the sensor detects a finger, it triggers a high-resolution image capture. That image is converted into a mathematical representation, which is then sent through the hardware channel to a secure enclave. If the representation matches what's stored in the enclave, a "yes" token is released and the Touch ID action is authenticated. If not, a "no" token is released, and all you get is a digital head shake. Every time Touch ID scans a finger and recognizes it, it adds additional detail to the representation, theoretically to make it register even faster and better in the future. Troubleshooting trippy Touch ID authentication Here are a few tips and tricks to try if you're experiencing Touch ID issues: During the registration process, make sure you move your finger around enough that the entire …

How to create a new Apple ID on your iPhone or iPad

How to create a new Apple ID on your iPhone or iPadOpen the Settings app.Tap iCloud. Tap Create a new Apple ID. Enter a birth date.Tap Next.Enter your first and last name.Tap Next. Select your current email address or get a new iCloud email address. Enter your email address.Create a password.Verify the password.Select a security question.Type in answer. Repeat two more times. Agree to the Terms and Conditions.Tap Merge or Don't Merge to sync iCloud data from Safari, reminders, contacts and calendars. Tap OK to confirm Find My iPhone is turned on.

How to build Laptop Protector

Discription: Protect your valuable laptop against theft using this miniature alarm generator. Fixed in-side the laptop case, it will sound a loud alarm when someone tries to take the laptop. This highly sensitive circuit uses a homemade tilt switch to activate the alarm through tilting of the laptop case. The circuit uses readily available components and can be assembled on a small piece of Vero board or a general-purpose PCB. It is powered by a 12V miniature battery used in remote control devices. IC TLO71 (IC1) is used as a voltage comparator with a potential divider comprising R2 and R3 providing half supply voltage at the non-inverting input (pin 3) of IC1. The inverting input receives a higher voltage through a water-activated tilt switch only when the probes in the tilt switch make contact with water. When the tilt switch is kept in the horizontal position, the inverting input of IC1 gets a higher voltage than its non-inverting input and the output remains low. IC CD4538 (IC2) i…

How to build Personal alarm

Circuit Diagram:

PARTS:R1 330K 1/4W ResistorR2 100R 1/4W ResistorC1 10nF 63V Polyester or Ceramic CapacitorC2 100µF 25V Electrolytic CapacitorQ1 BC547 45V 100mA NPN TransistorQ2 BC327 45V 800mA PNP TransistorSW1 Reed Switch and small magnet (See Notes)SPKR 8 Ohm Loudspeaker (See Notes)B1 3V Battery (two A or AA cells wired in series etc.)Device Purpose: This circuit, enclosed in a small plastic box, can be placed into a bag or handbag. A small magnet is placed close to the reed switch and connected to the hand or the clothes of the person carrying the bag by means of a tiny cord. If the bag is snatched abruptly, the magnet looses its contact with the reed switch, SW1 opens, the circuit starts oscillating and the loudspeaker emits a loud alarm sound. The device can be reverse connected, i.e. the box can be placed in a pocket and the cord connected to the bag. This device can be very useful in signalling the opening of a door or window: place the box on the frame and the magnet on the mo…

How to build Ni -Cd Batteries Charger

Circuit Diagram

Board Layout:

parts use in it:D1-4 = 1N4001IC1 = 7808 (voltage regulator)C1 = 1000uF/16VC2 = 1uF/63VIL1-4 = 6V/0,05A BULBBH1-4 = AA BATTERY-HOLDERF1 = 20mA FUSE + HOLDERT1 = TRANSFORMER (10V/0,25A)

Cell Phone Detector circuit diagram and its work

The most common electronic equipment used is cell phones. With advancement in communication technology, the requirement of cell phones has increased manifold. A cell phone typically transmits and receives signals in the frequency range of 0.9 to 3GHz. This article provides a simple circuit to detect the presence of an activated cell phone by detecting these signals. Basic Principle of Mobile Phone Detector Circuit: The basic principle behind this circuit is the idea of using a Schottky diode to detect the cell phone signal. Mobile phone signal is in the frequency range of 0.9 to 3GHZ.  Schottky diodes have a unique property of being able to rectify low frequency signals, with low noise rate. When an inductor is placed near the RF signal source, it receives the signal through mutual induction. This signal is rectified by the Schottky diode. This low power signal can be amplified and used to power any indicator like an LED in this case. Circuit Diagram of Cell Phone Detector:Circuit Comp…