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What is the advantages and disadvantages of digital pens?
Using light pen we can wright easily
Advantages: Digital libraries can be accessed from anywhere around the world - you do not need to travel to a specific location in order to access the information and resource…s it contains.Digital libraries are accessible 24/7 - they don't have operating hours.Digital libraries are typically less expensive than traditional libraries. This is because there are little or no costs associated with constructing/purchasing/leasing the building; maintenance of the facility; utilities (water, electricity, gas, phones, internet); staff (fewer people are needed to develop, maintain, and support a digital library),Multiple users can access the same resource at the same time (though some resources may have a limit to the number of users who can access it at the same time)Users can have immediate access to resources - access isn't delayed or prohibited due to holds, restrictions for in-library use only, or incorrect shelving, etc.There is no physical degradation of the resource due to handling, storage, or vandalism.Digital libraries aren't limited in terms of size.Digital libraries can potentially cater better to the needs of users by providing materials that users want and actually use. Some resources may only be officially purchased by the library from a vendor once a certain number of users have accessed the item. In this sense, items that are rarely or never used are not added into the collected and are not paid for, saving the library money. Disadvantages: Digital libraries can be hacked; this can involve a disruption of services, and/or may cause users's computers to become infected with viruses or malware.There is still a lack of standardization when it comes to digital information.Copyright issues relating to digital informationMultiple vendors (with whom various library resources are provided) have different requirements when it comes to who can access what, how often the material can be accessed (e.g. if there is a limit to the number of users who can use the item at any one time, or if there is a limit to the number of uses before the library has to pay for the resource again).Different users access digital libraries using different devices; in order to allow users to access the library, these various platforms must be addressed (e.g. mobile versions, desktop versions, different operating systems, etc).Users must have a computer and access to the internet to use the library; thus, certain populations will have limited or no access to the library. This is especially so for remote or rural populations, or for populations living in poverty).Digital libraries must keep up with rapid changes in technology (including software, hardware, and the internet). Otherwise, the resources it provides will quickly become out-dated or inaccessible.The vast information that a digital library can provide can end up becoming a handicap: the shear volume of information lead to difficulties in finding exactly what a user is looking for (i.e. information overload).Digital libraries require users to read resources via computer screen; in general, physical print is easier to read than print on a computer screen. While e-readers are beneficial in this regard by re-creating the look of physical print, not all e-readers can access all resources offered by a digital library.Issues surrounding ownership: most - if not all - of the digital information made available through a digital library is provided by a third party (i.e. a vendor) for a fee. This fee is for access to the material; the library, in fact, does not own the material. As such, a vendor could easily remove any item from the library's collection without notice and without remuneration and if the library decides to stop a subscription with a vendor, all items that they once had access to will no longer be available. Traditional libraries, however, have complete control and ownership of items once they are purchased.
Advantages of Digital - ? Less expensive ? More reliable ? Easy to manipulate ? Flexible ? Compatibility with other digital systems ? Only digitised information can be transp…orted through a noisy channel without degradation ? Integrated networks Disadvantages of Digital - ? Sampling Error ? Digital communications require greater bandwidth than analogue to transmit the same information. ? The detection of digital signals requires the communications system to be synchronised, whereas generally speaking this is not the case with analogue systems. Definition of Analogue - Analogue is a transmission standard that uses electrical impulses to emulate the audio waveform of sound. When you use a phone, the variations in your voice are transformed by a microphone into similar variations in an electrical signal and carried down the line to the exchange. Read more: What are the advantages and disadvantages of analog vs. digital communication? | Answerbag http://www.answerbag.com/q_view/31169#ixzz22QItwcat
1. The signal is exact. For example, Digital formats like PCM (Pulse Code Modulation) can hold the exact digital format of sounds. 2. Digital signals can checked for errors. G…enerally, all digital transmission methods use 'head labels' to provide better checking facilities. Head label may contain how many packets may need to complete the transmission, what is the sequence number of each packet of data, acknowledgment labels etc. 3. A variety of services can afford over one line. For example, IpTV connection can used to watch cable TV channels while browsing the Internet through a PC using same line. This line can also used to make a phone call at the same time. 4. Digital data can be compressed and therefore possible to pass over higher bandwidths. Any digital data; data, image, video, voice can be compressed. 5. More secure. Digital data can be encrypt using an encryption method. Only the dedicated receiver can decode the message. 6. Supports data integrity. Simple to integrate voice, video and data. Digital transmission provides easier way to integrate different digital formats. 7. Digital transmission provides higher maximum transmission rates via medium such as optical fibers. Typically, digital transmissions use less bandwidth. Disadvantages:::::::: 1) digital equipment costs more and is much more complex. by Abdullah cu-516-A cecos university
The advantages of digital copier machines are many: They combine the functions of copiers, scanners, network printers, and fax machinesFewer moving parts means less mechanica…l breakdownsLess noise makes for a quieter officeThey are better at reproducing fine lines and photographs. Some people like the simplicity of analog copiers - they can be simpler to operate, with just one button to press to make a copy. However with even minimal training, your staff will quickly get used to operating a digital machine.
Advantages of digital communication: 1. It is fast and easier. 2. No paper is wasted. 3. The messages can be stored in the device for longer times, without being damaged…, unlike paper files that easily get damages or attacked by insects. 4. Digital communication can be done over large distances through internet and other things. 5. It is comparatively cheaper and the work which requires a lot of people can be done simply by one person as folders and other such facilities can be maintained. 6. It removes semantic barriers because the written data can be easily chaned to different languages using software. 7. It provides facilities like video conferencing which save a lot of time, money and effort. Disadvantages: 1. It is unreliable as the messages cannot be recognised by signatures. Though software can be developed for this, yet the softwares can be easily hacked. 2. Sometimes, the quickness of digital communication is harmful as messages can be sent with the click of a mouse. The person oes not think and sends the message at an impulse. 3. Digital Communication has completely ignored the human touch. A personal touch cannot be established because all the computers will have the same font! 4. The establishment of Digital Communication causes degradation of the environment in some cases. "Electronic waste" is an example. The vibes given out by the telephone and cell phone towers are so strong that they can kill small birds. Infact the common sparrow has vanished due to so many towers coming up as the vibrations hit them on the head. 5. Digital Communication has made the whole wordl to be an "office." The people carry their work to places where they are supposed to relax. The whole world has been made into an office. Even in the office, digital communication causes problems because personal messages can come on your cell phone, internet, etc. 6. Many people misuse the efficiency of Digital Communicatio. The sending of hoax messages, the usage by people to harm the society, etc cause harm to the society on the whole.
The advantages of a digital camera are that the pictures can been seen before saving. Some disadvantages are memory card failure, and having to replace batteries often.
Digital does not drift over time or change with temperature or vary with component tolerances like analog does; but it is slower and the answers have quantization errors.
Hey here you go Analog: More complex in design. Don't require memory. more noise prone. identical systems are impossible to design. There is always a risk of oscil…lations due to instability. Digital: Lower complexity. may require memory. repeated inputs are possible. more noise immunity. identical systems are possible. lowered risk of instability.
advantages: 1.Signals represented digitally can be transmitted without degradation due to noise. 2.A more precise representation of a signal can be obtained by using more bina…ry digits to represent it. 3.Less expensive. 4.More reliable. 5.Easy to manipulate. 6.Flexible. 7.Compatibility with other digital systems. 8.Only digitized information can be transported through a noisy channel without degradation. 9.Integrated networks. disadvantages: 1.Digital circuits use more energy than analog circuits to accomplish the same tasks, thus producing more heat which increases the complexity of the circuits such as the inclusion of heat sinks. 2.Digital circuits are sometimes more expensive. 3.Sampling Error. 4.Digital communications require greater bandwidth than analogue to transmit the same information. 5.The detection of digital signals requires the communications system to be synchronized, whereas generally speaking this is not the case with analogue systems
advantages : 1) it provides security . for example :- java ring is used to lock or unlock doors or computers as we use passwords and keys to lock our computers and doors . we… con't need to remember all those passwords and carry all those keys . so java ring is designed to provide security. 2) easy to carry everywhere.
This handheld mini digital multimeter features easy-to-read LCD readout, low battery indication, fuse and diode protected circuit. Easily fits in a shirt pocket, …yet despite its size it is a rugged, full function multimeter that performs the following...
advantages, disadvantages of digital control systems
advantages infinite, disadvantages none.
THE ADVANTAGES ARE 1) IT PROVIDES SECURITY for example JAVA RING is used to lock or unlock doors or computers...as we use passwords and keys to lock our doors and computers w…e dont need to remember all those passwords and carry all those keys.SO java ring is designed to provide security 2)AS COMPUTING DEVICES are embedded it is not neccessary to carry CELLS r COMPUTERS...hence it is easy to carry everywhere
Advantages: · Good for educational purposes · Saves time · Can print out or save images Disadvantages:requires power source to work
Can anyone plz tell me what are the advantage and disadvantage of digitaland