What happens if you enter the wrong number in ATM?
It is alright if you have inserted wrong PIN number at the ATM machine twice, but the real problem occurs when your attempt fails thrice. If your card is blocked after three attempts at ATM, then some banks do block it for temporary basis. This temporary block can be for maximum 24 hours.
What are the disadvantages of using magnetic stripes?
15. Magnetic Stripe Reader
| Advantages of Magnetic Stripe Readers | Disadvantages of Magnetic Stripe Readers |
|---|---|
| Simple for people to use – little or no training | Very limited storage capacity for data |
| Cards are inexpensive to produce | Data can be easily destroyed by strong magnetic fields |
What are the advantages and disadvantages of magnetic tape?
As long as it is not damaged, a magnetic tape is very reliable method of data storage….6. Magnetic Tape.
| Advantages of magnetic tape | Disadvantages of magnetic tape |
|---|---|
| Can store large amounts of data – up to 1 Terabyte per tape cartridge | Need a special piece of equipment to record and read the data on the tape |
What is the difference between magnetic stripe card and smart cards?
For a magnetic stripe card to work, the service provider is required to swipe the card, the card then processes the information via an on-line system and will then authorise the card. A smart card works off-line and does not need to be processed on-line. This saves time and it saves on employment costs.
How does magnetic stripes happen?
The striped magnetic pattern develops because, as oceanic crust pulls apart, magma rises to the surface at mid-ocean ridges and spills out to create new bands of ocean floor. Later, after the planet’s magnetic field flips again, the next stripe of new ocean floor aligns its polarity in the opposite direction.
Where does seafloor spreading start?
Seafloor spreading occurs along mid-ocean ridges—large mountain ranges rising from the ocean floor. The Mid-Atlantic Ridge, for instance, separates the North American plate from the Eurasian plate, and the South American plate from the African plate.
How is seafloor recycled?
Mid-ocean ridges are structurally weak zones in the ocean floor, and where magma rises to form new oceanic crust. This process, called seafloor spreading, has built the present system of mid-ocean ridges. Subduction zones are plate boundaries where old oceanic crust is recycled back into the mantle.
Why are undersea mountains flat?
The peaks are often found hundreds to thousands of meters below the surface, and are therefore considered to be within the deep sea. During their evolution over geologic time, the largest seamounts may reach the sea surface where wave action erodes the summit to form a flat surface.
What on earth is a seamount?
A seamount is an underwater mountain formed by volcanic activity. New estimates suggest that, taken together, seamounts encompass about 28.8 million square kilometers of the Earth’s surface. That’s larger than deserts, tundra, or any other single land-based global habitat on the planet.