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Digital Electronics Articles
Page 45 of 46
How is technology affecting the lives of people with disabilities?
The impact of technology has been nothing short of phenomenal on the lives of people with disabilities. Nothing articulates this better than the statement by Mary Pat Radabaugh, Director of IBM National Support Center for Persons with Disabilities - "For most people, technology makes things easier.Technology Makes Things PossibleFor people with disabilities, technology makes things possible." That's one of the most accurate observations on the matter and it is based on a whole list of examples that could be found across different parts of the world. In fact, there's a term that has been coined specifically for this kind of ...
Read MoreHow to Convert Hexadecimal to Decimal?
Whereas Hexadecimal number is one of the number systems which has value is 16 and it has only 16 symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and A, B, C, D, E, F. Where A, B, C, D, E and F are single bit representations of decimal value 10, 11, 12, 13, 14 and 15 respectively. Whereas Decimal system is most familiar number system to the general public. It is base 10 which has only 10 symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.Conversion from Hexadecimal to Decimal number systemThere are various ...
Read MoreDecimal Number System
Number System represents value of number with respect to its given base. Based on its Base value, a number has unique representation and different number systems have different representation of the same number. For example, Binary, Octal, Decimal and Hexadecimal Number systems are used in microprocessor programming.If the Base value of a number system is 10, then it is called Decimal number system which has most important role in the development of science and technology. This is the weighted (or positional) number representation, where value of each digit is determined by its position (or their weight) in a number. This ...
Read MoreHexadecimal Number System
Hexadecimal Number System is one the type of Number Representation techniques, in which there value of base is 16. That means there are only 16 symbols or possible digit values, there are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F. Where A, B, C, D, E and F are single bit representations of decimal value 10, 11, 12, 13, 14 and 15 respectively. It requires only 4 bits to represent value of any digit. Hexadecimal numbers are indicated by the addition of either an 0x prefix or an h suffix.Position of every ...
Read MoreBinary Number System
Binary Number System is one the type of Number Representation techniques. It is most popular and used in digital systems. Binary system is used for representing binary quantities which can be represented by any device that has only two operating states or possible conditions. For example, a switch has only two states: open or close.In the Binary System, there are only two symbols or possible digit values, i.e., 0 and 1. Represented by any device that only 2 operating states or possible conditions. Binary numbers are indicated by the addition of either an 0b prefix or an 2 suffix.Position of ...
Read MoreDifference between Magnetic Tape and Magnetic Disk
Both Magnetic Tape and Magnetic Disk are the type of non-volatile magnetic memory and used to store the data. On the basis of architecture and features we can distinguish between both Magnetic Tape Memory and Magnetic Disk Memory. Following are the important differences between Magnetic Tape Memory and Magnetic Disk Memory.Sr. No.KeyMagnetic Tape MemoryMagnetic Disk Memory1DefinitionMagnetic tape is type of non-volatile memory uses thin plastic ribbon is used for storing data and as data use to be stored on ribbon so data read/write speed is slower due to which is mainly used for data backups.On other hand Magnetic Disk is ...
Read MoreEPC Gen 2 Tag Identification Layer
Tag identification layer of Electronic Product Code (EPC) Gen 2 lays down the method by which the readers can receive the identifiers from the tags. EPC Gen 2 (second generation) RFID (Radio Frequency Identification) network has two main components, tags and readers. RFID tags are affixed on objects with EPC encoded on them for identification. EPC helps to check identities of objects like inventory, assets and people, and track them. Readers are the intelligent part of the system that tracks the tags. The tag identification layer addresses the multiple access problem of getting messages from unknown number of tags.Working PrincipleIn ...
Read MoreWhat is backscatter?
Backscatter is a method that uses an incident radio-frequency (RF) signal to transmit data without a battery or power source. It employs passive reflection and modulation of the incoming RF signal, and converts it into tens or hundreds of microwatts of electricity, that can be encoded for data communications.It differs from other wireless communications since the communication is half duplex in nature, i.e. both the sender and receiver cannot transmit simultaneously. The mains advantage of backscattering is that it’s low energy requirements and low complexity of deployment.Architecture of backscatter communicationsA basic backscatter communication system has two main components: tags, and ...
Read MoreEPC Gen 2 Physical Layer
Physical layer of Electronic Product Code (EPC) Gen 2 defines method of transmission of bits across the network. EPC is a universal identifier encoded on RFID (Radio Frequency Identification) tags to check identities of objects like inventory, assets and people, and track them. The second generation of this technology, as laid down by EPCglobal Tag Data Standard, is called EPC Gen 2.EPC Gen 2 RFID network has two main components, tags and readers. Tags are affixed on objects that enables them to be identified or tracked. Readers are the intelligent part of the system that tracks the tags. The physical ...
Read MoreEPC Gen 2 Architecture
EPC or Electronic Product Code is a universal identifier that are encoded on RFID (Radio Frequency Identification) tags to check identities of objects like inventory, assets and people, and track them. The second generation of this technology, as laid down by EPCglobal Tag Data Standard, is called EPC Gen 2.The architecture of EPC Gen 2, RFID network has two main components −Tags or labels − They are affixed on objects so that they can be identified or tracked.Readers or interrogators − They are the intelligent part of the system that tracks the tags.The architecture is shown as below −RFID tags ...
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