Review Of Related Literature Essay Example

"non-volatile memory".

The files are sent over the Internet using a 128 bit encryption security technique. Additionally, other applications include the vending of 4 digit PIN's with location numbers for access to various amenities such as parking locations, water jugs, firewood bundles, or Propane Tank exchanges from combination locked cages. To make a purchase, the customer can insert any combination of cash or optional cash and coins, or cash, coins, or a credit card. Once the PIN value is selected, it is instantly printed on a thermal receipt printer slip of paper. Finally, the PIN is used to open or access a door or other application.

The model 5008P of the "One to Eight Selection" push button Receipt Slip Instant Printer Vending Machine is equipped with a feature that automatically requests additional PIN's to be replenished over the Internet for each value printed. It can be purchased with 8 flashing push buttons as an alternative to the touch screen. An economical option, the model 5008P can be enhanced with a G6 e-Port Discover, Visa, Master Card & American Express "Wireless" credit card terminal instead of the coin mechanism. This vending machine accepts $1 - $5 - $10 & $20 USA banknotes and coins, or alternatively, optional credit/debit cards in lieu of coins.

Vendapin LLC (2010) offers an ideal model for vending various products from a caged locker, such as parking lot PINs, Propane Tanks, Bottle Water Jugs, Firewood Bundles, and more. This model is equipped with an electronic coin mechanism and system. The improved electronic coin mechanism controls the vending machine's operation and stores specific data. These raw data can be read out by a reader,

which can be connected to a computer through a shuttle for interface purposes.

The computer can generate different reports because it collects various types of information. The battery-operated electronic coin mechanism is built to last for a long time. It includes a rotatable coin wheel that determines the value of a coin based on its diameter. The count is then compared with stored information in the coin electronics, which also has a time counter. The system stores the time of the first and last sale, sales per period, and total amounts received. Multiple levels of security are available.

In a preferred form, the newsrack is equipped with an electronic mechanism that can identify deposited coins. If the correct amounts of valid coins are deposited, access to the dispenser's interior is allowed. This is usually done by opening the machine door. The machine's electronics store various information, including total amount deposited, machine identification number, and relative time of the first and last sale, as well as the relative time of each sale. Relative time refers to elapsed time rather than chronological time.

The machine's electronics are powered by a battery and function in a low power sleep mode to save energy. The machine is activated when a coin is deposited, at which point it powers up and performs various tasks. These tasks include recognizing the denomination of the coin, adding up the value of all valid coins inserted, comparing the total amount to the purchase price, noting the current time, and unlocking the door to allow access if enough money has been deposited. The money that is deposited then drops into the machine's bank. Finally, the total value of

all valid coins is calculated.

If the deposited coins or other items are less than the purchase price or if invalid coins or slugs are deposited, they will be diverted to a coin return and the door will remain locked. The coin recognition system is unique in that it accepts and reads the value of each increment of coins from one cent to a dollar, for example, in sequential order through a coin chute. Coin recognition is achieved using a rotatable coin wheel with a predetermined number of apertures, along with a single light source and detector, which is described in more detail. The use of a single light source and detector helps reduce power consumption. (Jeffrey W. Roberts, 2001) Vending Machine. The design of a vending machine starts with the cabinet, an outer steel shell that houses all internal components and determines the machine's overall size and shape. Inside the cabinet is a steel inner lining called the tank, which fits closely with the cabinet and leaves enough space for a layer of polyurethane foam insulation. Together, the tank and insulation help maintain stable internal temperatures and protect products from extreme temperatures outside the cabinet.

All products and dispensing mechanisms are located within the tank, even though they are contained in the cabinet. The cabinet's outer surfaces have a powdered acrylic finish that is baked on. This powder coating allows the machine to endure harsh conditions like extreme temperatures, salt or sand, customer abuse, and other situations that demand a durable surface. Certain vending machines, particularly those for cold drinks, feature two doors. The internal door not only seals the inside of the machine but

also provides extra insulation.

The electronic controls within the outer door allow customers to purchase and receive goods. This door also has signage and illustrations, usually silk-screened onto a Lexan panel that fits into the front panel. Lighting for the front panel is typically installed behind the Lexan panels. Heavy-duty hasps, locks, and hinges are included in the outer door to prevent theft and vandalism (Bailey, Jane M., 1991). The Mobile Printing Solution enables printing on-the-go from any smartphone, tablet or laptop by sending an email to a PrinterOn-enabled printer.

Mobile printing apps are available for these devices. These apps allow you to search for printers in your area using GPS or keywords, and then print to them. Public print locations can be found in hotels, airports, libraries, and cafes. PrinterOn (2011) boasts more than 6000 print locations worldwide.

Printing in public areas can be done from the public workstations or directly from your laptop through the wireless network. The public workstations in libraries and residence halls send print jobs to pay-for-print stations automatically.

To release your print job, you can swipe either your copy card or Pony express card in the card reader. This will release your job to the printer. Black and white copies cost 10 cents per page, while color copies cost 50 cents per page. Please note that color printing may not be available at all locations. If you need a copy card, you can buy one at Images in Hughes-Trigg or at card vending machines in Fondren Library Center and Hamon Arts Library. The price for a completely blank copy card is $1.00. If purchasing from a vending machine, you will need a

single dollar bill.

The card can be topped up with $1, $5, $10, or $20 bills after purchase. Change is not accepted by vending machines (Southern Methodist University, 2011). To print on any public facilities at the London School of Economics and Political Science (LSE), credit must be added to one's printing account. Credit can be added online or by paying with cash or a credit/debit card. If paying with coins only, the value loaders must be used. To use a value loader, swipe the LSE ID card through the slot or enter the username and password using the keyboard.

The display will show the current balance. To reach the desired balance, coins must be entered (the display will update the balance as coins are deposited). Pressing the Finish button will finish the deposit. (London School of Economics and Political Science, 2010) Using the Card System, student printing accounts receive a credit balance of $20.00 per semester for printing/copying services. Each print made to a public printer deducts from the student printing account balance.

Public printers are available in multiple locations on campus and are categorized by location in the list of available printers. This new card system enables students to make copies using campus copiers and deducts the cost from their network printing account. The student's ID card's magnetic stripe is utilized to identify the student and charge their print account. When a student's charges reach increments of $1.00, they receive an email statement containing details of their most recent print job, as well as the remaining balance on their account.

The account can be checked online. Additionally, there is an invention known as the Electronic Coin Dispenser

which includes a coin dispenser with calculating capabilities and a printer for recording calculations made before dispensing coins. The invention also includes a coin-holding means for holding coins of different denominations, multiple coin ejectors for selecting coins from individual stacks, and a payment driver for driving the coin ejectors to dispense the selected coins.

The coin dispenser has a print head that creates alphanumeric characters in columns on a record-keeping tape. The print head can print characters in specific columns on the tape. A keyboard allows users to enter commands and operands related to calculations and coin dispensing. A microcomputer controls the printing and coin dispensing elements by generating signals to activate them.

The coin dispenser uses a microcomputer and limited hardware to connect with the printer, coin ejectors, payment driver, and tape advance mechanism. Data is exchanged between the microcomputer and a serial-to-parallel converter through a serial data line, allowing the microcomputer to allocate most of its I/O capacity for other tasks. The serial-to-parallel converter can be loaded with print and coin dispense data. Despite the alternating operation of the printing and coin dispensing components, the coin dispenser operates at a high speed.