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This article needs additional citations for. Unsourced material may be challenged and removed.Find sources: – ( October 2010) A card reader is a data input device that reads data from a card-shaped.

The first were, which read the paper or cardboard that were used during the first several decades of the computer industry to store information and programs for computer systems. Modern card readers are electronic devices that can read plastic cards with either a, or another storage medium.A memory card reader is a device used for communication with a or a.A magnetic card reader is a device used to read, such as.A business card reader is a device used to scan and electronically save printed. Smart card reader See also: and.A smart card reader is an electronic device that reads and can be found in the following form:. Some have a built-in card reader.

External devices and internal card reader devices exist for (PC). Some laptop models contain a built-in smart card reader and/or utilize upgradeable.External devices that can read a (PIN) or other information may also be connected to a keyboard (usually called 'card readers with '). A USB card reader like this one, will typically implement the.A is a device, typically having a interface, for accessing the data on a such as a (CF), (SD) or (MMC). Most card readers also offer write capability, and together with the card, this can function as a.Access control card reader card readers are used in systems to read a that allows access through access control points, typically a locked door.

An access control reader can be a reader, a reader, a proximity reader, a reader, or a reader.Access control readers are classified by they are able to perform and by identification technology:Barcode A is a series of alternating dark and light stripes that are read by an optical scanner. The organization and width of the lines is determined by the bar code protocol selected. There are many different protocols, such as the prevalent.

Sometimes the digits represented by the dark and light bars are also printed to allow people to read the number without an optical reader.The advantage of using barcode technology is that it is cheap and easy to generate the credential and it can easily be applied to cards or other items. However the same affordability and simplicity makes the technology susceptible to fraud, because fake barcodes can also be created cheaply and easily, for example by real ones. One attempt to reduce fraud is to print the barcode using carbon-based ink, and then cover the bar code with a dark red overlay.

The barcode can then be read with an optical reader tuned to the infrared spectrum, but can not easily be copied by a copy machine. This does not address the ease with which barcode numbers can be generated from a computer using almost any printer.Biometric. IP fingerprint readerMedia typeCapacity10000 templatesDeveloped byUsagefingerprint identification, access controlThere are several forms of identification employed in access control:, Voice Recognition,.

Biometric technology has been promoted for its ability to significantly increase the security level of systems. Proponents claim that the technology eliminates such problems as lost, stolen or loaned and forgotten PINs. All biometric readers work similarly, by comparing the stored in memory to the scan obtained during the process of identification. If there is a high enough degree of that the template in the memory is compatible with the live scan (the scan belongs to the authorized person), the ID number of that person is sent to a. The control panel then checks the permission level of the user and determines whether access should be allowed.

The communication between the reader and the control panel is usually transmitted using the industry standard. The only exception is the intelligent biometric reader, which does not require any panels and directly controls all.Biometric templates may be stored in the memory of readers, limiting the number of users by the reader memory size (there are reader models that have been manufactured with a storage capacity of up to 50,000 templates). User templates may also be stored in the memory of the smart card, thereby removing all limits to the number of system users (finger-only identification is not possible with this technology), or a central PC can act as the template host. For systems where a central server is employed, known as 'server-based ', readers first read the biometric data of the user and then forward it to the main computer for. Server-based systems support a large number of users but are dependent on the reliability of the central server, as well as.1-to-1 and 1-to-many are the two possible modes of operation of a biometric reader:. In the 1-to-1 mode a user must first either present an ID card or enter a PIN. The reader then looks up the template of the corresponding user in the database and compares it with the live scan.

The 1-to-1 method is considered more secure and is generally faster as the reader needs to perform only one comparison. Most 1-to-1 biometric readers are 'dual-technology' readers: they either have a built-in proximity, smart card or keypad reader, or they have an input for connecting an external card reader.

In the 1-to-many mode a user presents biometric data such as a fingerprint or retina scan and the reader then compares the live scan to all the templates stored in the memory. This method is preferred by most end-users, because it eliminates the need to carry ID cards or use PINs.

On the other hand, this method is slower, because the reader may have to perform thousands of comparison operations until it finds the match. An important technical characteristic of a 1-to-many reader is the number of comparisons that can be performed in one second, which is considered the maximum time that users can wait at a door without noticing a delay.

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Currently most 1-to-many readers are capable of performing 2,000–3,000 matching operations per second.Magnetic stripe. See also:Magnetic stripe technology, usually called mag-stripe, is so named because of the stripe of magnetic oxide tape that is laminated on a card. There are three tracks of data on the magnetic stripe. Typically the data on each of the tracks follows a specific encoding standard, but it is possible to encode any format on any track.

A mag-stripe card is cheap compared to other card technologies and is easy to program. The magnetic stripe holds more data than a barcode can in the same space.

While a mag-stripe is more difficult to generate than a bar code, the technology for reading and encoding data on a mag-stripe is widespread and easy to acquire. Magnetic stripe technology is also susceptible to misreads, card wear, and data corruption.

These cards are also susceptible to some forms of skimming where external devices are placed over the reader to intercept the data read.Wiegand card card technology is a patented technology using embedded wires strategically positioned to create a unique pattern that generates the identification number. Like or technology, this card must be swiped through a reader to be read. Unlike the other technologies, the identification media is embedded in the card and not susceptible to wear. This technology once gained popularity because it is difficult to duplicate, creating a high perception of security.

This technology is being replaced by proximity cards, however, because of the limited source of supply, the relatively better of proximity readers, and the convenience of the touch-less functionality in proximity readers.Proximity card readers are still referred to as 'Wiegand output readers', but no longer use the Wiegand effect. Proximity technology retains the so that the new readers are compatible with old systems.Proximity card Access control. Proximity reader with keypadDeveloped byElko InternationalUsageaccess controlA reader radiates a 1' to 20' electrical field around itself. Cards use a simple. When a card is presented to the reader, the reader's electrical field excites a coil in the card.

The coil charges a and in turn powers an. The integrated circuit outputs the card number to the coil, which transmits it to the reader.A common proximity format is 26-bit Wiegand. This format uses a facility code, sometimes also called a site code. The facility code is a unique number common to all of the cards in a particular set. The idea is that an organization will have their own facility code and a set of numbered cards incrementing from 1. Another organization has a different facility code and their card set also increments from 1.

Thus different organizations can have card sets with the same card numbers but since the facility codes differ, the cards only work at one organization. This idea worked early in the technology, but as there is no governing body controlling card numbers, different manufacturers can supply cards with identical facility codes and identical card numbers to different organizations. Thus there may be duplicate cards that allow access to multiple facilities in one area. To counteract this problem some manufacturers have created formats beyond 26-bit Wiegand that they control and issue to organizations.In the 26-bit Wiegand format, bit 1 is an even parity bit. Bits 2–9 are a facility code.

Bits 10–25 are the card number. Bit 26 is an odd parity bit. Other formats have a similar structure of a leading facility code followed by the card number and including parity bits for error checking, such as the 1/12/12/1 format used by some American access control companies.1/8/16/1 gives as facility code limit of 255 and 65535 card number1/12/12/1 gives a facility code limit of 4095 and 4095 card number.Wiegand was also stretched to 34 bits, 56 bits and many others.Smart card There are two types of: contact and contactless. Both have an embedded microprocessor and memory. The smart card differs from the proximity card in that the microchip in the proximity card has only one function: to provide the reader with the card's identification number. The processor on the smart card has an and can handle multiple applications such as a cash card, a pre-paid membership card, or an access control card.The difference between the two types of smart cards is the manner with which the microprocessor on the card communicates with the outside world.

A contact smart card has eight contact points, which must physically touch the contacts on the reader to convey information between them. Since contact cards must be inserted into readers carefully in the proper orientation, the speed and convenience of such a transaction is not acceptable for most access control applications. The use of contact smart cards as physical access control is limited mostly to parking applications when payment data is stored in card memory, and when the speed of transactions is not as important.A contactless smart card uses the same radio-based technology as the proximity card, with the exception of the frequency band used: it uses a higher frequency (13.56 MHz instead of 125 kHz), which allows the transfer of more data, and communication with several cards at the same time. A contactless card does not have to touch the reader or even be taken out of a wallet or purse. Most access control systems only read serial numbers of contactless smart cards and do not utilize the available memory. Card memory may be used for storing biometric data (i.e. Fingerprint template) of a user.

In such case a biometric reader first reads the template on the card and then compares it to the finger (hand, eye, etc.) presented by the user. In this way biometric data of users does not have to be distributed and stored in the memory of controllers or readers, which simplifies the system and reduces memory requirements.Smartcard readers have been targeted successfully by criminals in what is termed a, in which the readers are tampered with during manufacture or in the supply chain before delivery. The rogue devices capture customers' card details before transmitting them to criminals.

Banking card readers.

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Teclast Micro SD / TF / Memory Card, Your Prior ChoiceTeclast micro SD / TF / memory card adopts UHS-I U1 class 10 speed level, afford you a smooth data transmission and quick reading speed. It also support FHD 1080P and 4K video recording. Great quality performance also shown as waterproof and high / low temperature resistant. Worked perfectly in my testing and in my tablets! I got this 128G TF card to use with my tablets.

So far it has worked perfectly in my testing. I always keep a couple of spares around for my future needs.

So I own several memory cards and I always do a speed test to verify the reading and writing speeds before I install the memory. This card checked out extremely well. The fastest write speed on this card was 48.143 MB/s and the fastest reading speed was 89.368 MB/s.I am amazed at how well these work and how low the price has gotten on a sale day. Putting one of these into your phone or tablet is a wonderful upgrade to the device’s storage capability.

Overall, this card worked well and I rated it five stars. If I have any future issues I will update my review.Jun 03,2019. Teclast High Speed Waterproof Micro SD/TF Card UHS - 1 U1 - Light Salmon 128GB Very good buy, great price. Main features: original flash memory particles ensure smooth data transmission, reliable performance and longer life; UHS-1 U1 class speed level, maximum read speed is 90MB/s; waterproof, high/low temperature resistant, shock resistant, anti-magnetic, anti-X ray; support 24h 4K video continuously recording; applicable to mobile phones, DVR, tablet PC, cameras, drones. Speed: read speed: 50-90 MB/s, write speed: 30-50MB/s.

I recommend it to everyone at every opportunity.Aug 02,2019. 128 gb version, 90 read and 40 write Much better speeds than anticipated for the price. I tested the card several times with cristal disk mark. The results were similar.

I had reads of 85-90 mb/s and writes of 35-40 mb/s. In random acccess it actually outperformed a kingston card of the same capacity, which is a more established brand and costs more. You need your own SD adapter, it does not come included. I would definitely buy this brand again when I need another card.Aug 20,2019. Works like a charm I love this TF card from TECLAST! Works great in my Galaxy Note 8!

And because of its strong compatibility, I also use it with my GPS navigator and speaker, the performance is stable and awesome.Fast enough that I can throw pretty much anything at it. Although there are other products with larger capacity, for now, I think 128GB is enough to handle all the 4K video I can shoot.

This TF card is equipped with strict selection of high quality original flash memory particles, which brings smoother data transmission, more reliable performance, and the service life is also longer.I think for this price, a waterproof, anti-magnetic, shock resistant TF card with persistent performance, is well worth the money.Jun 01,2019.