• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Hardware and Software requirements.

Extracts from this document...

Introduction

Hardware and Software requirements All ICT systems require Hardware and software in order to function. For the ICT system I am going to produce for a sole trader, the following requirements are essential for this Hardware * A CD-RW or DVD-RW is needed to save/backup large amounts of data in the event of corruption. It works by using microscopic bumps to store data. The surface of the CD disc is a mirror, and the bumps disrupt the mirror's perfect surface. The laser that reads the CD or DVD can detect the difference between a perfect mirror and an imperfection caused by. By identifying the bumps as a "1," and no bump as a "0," it is easy to store digital information on a CD or DVD. The bumps on a CD are molded into the plastic when it is produced, so they are permanent Files can be accessed on other computers and copied. Alternatives to this device are portable Flash drives, zip disc the old method of tapes and Floppy discs. * FDD to save/back up small files and to add small programs or updates to programs. * A fast CD-rom can be used to add further programs and utilities to enable better user accessibility. It can also be used to update existing software. * At least 40GB of hard drive to support programs and to save files. * A barcode scanner to scan UPC barcodes to identify the price of the product, a handheld barcode scanner for larger items. ...read more.

Middle

The "UPC" stands for Universal Product Code. This code is unique to each product. All UPC bar codes contain 12 digits with the first 6 containing the manufacturer's identification number. This is used on the full range of barcodes from a certain manufacturer so they can be easily identified. It is essential to use this system when a store is exporting products to foreign countries. The next five digits are the item number that identifies the product. The last digit is the check digit; this is very important because it enables the barcode scanner to determine if the barcode has been scanned correctly or not. It works the process out with a series of calculations. If the check digit the barcode scanner calculates is different from the check digit, the scanner knows that there has been an error and the item needs to be assessed and rescanned. This barcode is from a product produced by BYG publishing, which is a book company Communication Infrastructure Many companies used to use the Fax machine to send alphanumeric data to each other. This technology was particularly useful because it could also be used to transfer drawings. A fax machine works by scanning the data with a beam of light; the light is then converted into an electronic signal that is passed along the telephone line to the recipient's machine, which is then printed out. ...read more.

Conclusion

If an incident involving the products arose, this information would make it easy to track the source of the problem - and recall the products. * Thanks to the RFID when the palettes arrive at the unloading area there is no need to check the contents of the packages. The stock control program describes the cargo and is quickly taken to the appropriate truck. * Meanwhile the supermarket has been tracking the shipment thanks to its own connection to the stock control system. When the delivery arrives it passes trough their own loading dock readers. * As soon as the products arrive, the supermarket retail systems are automatically updated to include every product that has arrived. Thanks to this the supermarket can locate its entire product range from that manufacturer inventory this is all done accurately and automatically. * Inside the supermarket the shelves will contain their own independent readers, when the products are stocked, the shelves will understand what's being put in them. Now, when a customer grabs for example 6 cans of drink, the shelf will send a message to the supermarket's automated re-fill systems - which will order more cans of drink from the manufacturer. * Auto-ID makes the customers shopping trip easier, too. Rather than queue for a cashier, the customer can simply walk out the door with their purchases. A reader built into the door recognizes the items in her trolley by their individual EPCs; the customer can then swipe a debit or credit card and then exit. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Computer Science section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Computer Science essays

  1. Hardware and software ICT revision notes

    which is a user friendly method of showing information on screen graphically. It lets you start programs, choose commands and other options by using the mouse to click icons (symbols) and lists of menu items. You no longer need to remember complicated commands.

  2. I have been given the task to design a database for a company called ...

    * maximum total dimension of 300 cm, which is the validation rule for the Total Dimensions field in the parcel table. The validation rule stated that the value entered in the total dimension field must be between 0 and 300 centimeters.

  1. Coursework 1 (c)Install Apache Web Server on Unix ...

    fill the IP address, username and password as previously created of Nessus server and press Connect as the figure Step 5: Complete the server connection If all the information correct the log will show the connection to Nessus server with NessusWx successful establish as the figure Step 5: Active the

  2. Flexible Architectures in Communication Security Application

    We then calculate encryption rate by synthesizing the models to obtain timing estimates. Our systematic approach allowed us to study the tradeoffs between chip area and performance. We showed that the highest-performing and most cost-efficient design is the 4-wide combining configuration.

  1. Explain the component parts of a computer system - Include both hardware, software and ...

    RAM (random access memory) - RAM is held on a chip but is temporary data. This means that when the computer is switched off it disappears. RAM is used to hold both data and programs during processing. Hard disks drive - The hard disk is usually stored inside the computer although they can also be removable.

  2. With diagrams compare and contrast the relative advantages and disadvantages of digital transmission over ...

    Noise is produced at every step, not forgetting that introduced by your own stereo equipment. It can never be entirely eliminated. The same problems of noise are shared by any method of transmitting information, and are certainly by telecommunications, including telephone calls.

  1. Smart Card System

    Those nodes not receiving the data packet receive the Idle_Down signal from the repeater. 6. When the end node(s) receive the data packet, they return to their state prior to the reception o f the data packet, either sending an Idle_Up signal or making a request to send a data packet.

  2. Data Management: Past, Present, and Future

    stored on tape to produce a new master file. This master file also produced a report that was used as the ledger for the next day's business. Batch processing used computers very efficiently, but it had two serious shortcomings. If there was an error in a transaction, it was not detected until that evening's run against the master file, and the transaction might take several days to correct.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work