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- Marked by Teachers essays 1
- Peer Reviewed essays 4
Even the colour and contrast isn't as good, which has dull pictures. For JJ party Planners, the best monitor would be a TFT because it takes up less space and makes less noise. The sales assistants won't damage the screens or need high quality pictures so a TFT monitor would be fine as it doesn't cost too much now. The system is more than fast enough, since the formulae in my spreadsheet are quite simple and don't need a lot of computer power. The data used will only take up about 1 GB so the disk space of 320 GB on the Dell is more than enough for the staff at JJ Party planner so save details and other information on the system.
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Viruses A virus is a program that corrupts data; it can spread from file to file or computer to computer. E-mails: As well as text, it is also possible to send other files via e-mail - these are called attachments. For example, you could e-mail a picture or a music file to a friend. Unless you are expecting to receive an attachment, treat any you receive with suspicion as it is easy to get a virus from an infected attachment.
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See page 4. �120 Speakers Comes with bundle of desktop Pc. See page 1 for more details. �579 with Desktop PC and rest of bundle. Sony STEREO SPEAKER 2.0. See page 5 for more details. �20.11 Mouse & Keyboard Comes with bundle of desktop Pc. See page 1 for more details. Computer with mouse, keyboard and Bundle: �579.63 Microsoft Wireless Comfort Desktop 5000 USB Blue Track. See page 5. �47.43 Language Pack Comes with Windows 7 Free Comes with Windows 7.
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The hardware that forms part of the network can spread around the world. Within a WAN, many terminals are connected to the host computers. This allows networks to cover a large geographical area. The Internet is a WAN. It is most famous and widely used Wide Area Network which contains many thousands of servers and many millions of clients right across the world. Example: a network of banks cash dispensers is a WAN. LANs are often connected to WANs, for example a school network could be connected to the Internet. Telephone lines are often used to connect WANs.
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1. He can choose a TFT. This is a flat screen monitor. It is the newer version of the two. The pros of choosing TFT are: * It uses less space, * They are modern, and therefore look more professional, * They may also have better resolution, * Faster FPS (i.e. frames per second), * Don't give off a glare, * Give off less heat, * Very compact and tight, * Uses less power, * No geometric distortion, * Rugged, * Very little or no flickering, depending on backlight, * Larger in screen size.
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Cartridges cost less. If I had used this device, the disadvantages would have been... Noisier than a laser printer. Colour printing can be extremely slow. Contrast and compare chosen device to alternative Device Name: Printer Both the printers are an output device. Both print what we want. Inkjet printers will not be used at companies like laser printers. Inkjet are cheaper than laser. Lasers are better quality. Sub-system name. Million Air Database keyboard Qwerty Explain what this device is used for. Typing Is this an Input, process or Output device? Input Details of Hardware Item I Will Use: Description of the actual hardware device I will use.
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It would be safer to take a break after a few hours, or so. The cost of a computer is much more expensive than paper and pen, but the quality of your work is much more neat, tidy and professional. I used a mouse instead of a Tracker Ball is because it was cheaper, more simple, and easier to control. I didn't use a Graphics Tablet and Pen because it's informal, and isn't needed in my Travel Agent Booking System.
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This makes it more time efficient than a button mouse which has no scroll wheel. A mouse is one of the most important input devices. Cordless mice were not available, but if I had the chance to use them, I would have used them instead. The only difference is that they have no cord. But this is more useful that the mice with cords because they can be used further away from the computer, which means further away from the screen, causing less eye strain.
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Mainframe (P.C.) Laptop PDA ? Writing 1.3.1 Define a peripheral device It's an input, output or storage device that can be connected to the CPU. 1.3.2 List all the peripheral devices you can see in this room Scanner, print, mouse, keyboard and monitor. 1.3.3 List at least five more peripheral devices you know about Zip disk, speaker, plotter, screen, joysticks. Find some pictures of peripheral devices and paste them here. Mouse keyboard monitor scanner 1.4.1 What does the term input mean when referring to a computer system?
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* They have a very large storage capacity. * Sound and picture quality is excellent. * There is an increasing availability of products in DVD-format. * There is still a lot of competition from VHS and CDs because the technology is relatively new. Hard Disks Used to store all types of software necessary for to carry out daily tasks. Documents and files are more likely to be saved on hard disk. * Support the way you computer works. * Large storage capacity. * Stored items are not lost when the computer is switched off. * Come as a fixed unit inside the PC - cannot get lost easily.
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use random access, which enables any file on the device to be located and used in mere seconds. > Whenever multiple tapes or disks must be used to make a backup, the chances of backup failure increase. Disks also have to be loaded manually, or using an autoloader. This may sometimes rule out the possibility of backing up overnight, etc. > Writing data to tape drives is generally quite slow, with about 30 GB of data taking a few hours. Even with faster tape drives, there are problems: They often have minimum data transfer rates, because if they went slower than their rated minimum, they wouldn't record a good quality signal and would lose data.
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With wands, barcode systems approach one error in every 3,000,000 characters, and with laser technology, they approach one error in 70 million entries. On the other hand, disadvantages are that: scratched or crumpled barcodes may cause problems being read, and if a wand type bar code reader is used, the wand must touch the bar code, if a bar code must be read more than once, it may become smeared or damaged and so, in essence, unreadable. A common business situation in which this input peripheral is used is at supermarket checkouts to scan items for payment.
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Internet We use the internet for many things such as research, playing online games and downloading music. There are millions of sites and search providers that give you easy access to any information that I might need. I can also download files from the internet using a sharing system. Disadvantages The major disadvantages of the internet are the decline in the number of people that go to the library and also the amount of unwanted information that is on the internet.
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The advantages of using a keyboard are you can enter text easily and some keyboards are designed with a curved key layout to make typing faster and more comfortable. The keyboard was a vital part of my coursework, it helped me in all sorts of ways - it will be very difficult to cope without one. I didn't undergo any trouble using keyboard. It played a vital role in computers. These keyboards are widespread; all desktop computers have one, they are straightforward, trouble-free and simple to use.
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The input hardware devices I used is a mouse and a keyboard as not only do my staff not need any other input device but they would also have to take extra courses in order to learn the various input hardware devices. This would only be a waste of time. Entering data is very simple; the letters are big, bold, and clear and there's a very little amount of things that could go wrong which are hardware based. Alternative Devices and disadvantages My alternate devices that I could possibly have used would have been; a device such as a microphone with voice recognition which inputs the words which are being said.
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A modern form of data storage. It connects via USB. Compact Portable Large memory (up to 2GB) Small-easily lost Not compatible with all computers Fragile To take work home N/A Output Device Description Advantages Disadvantages Where did I use this device? How could I have used this device? Ink Jet Printer These printers use cartridges which contain ink. Produce good quality printouts Fast Cheap to buy Laserjet Printer They print in the same way as photocopiers. Powdered ink, called 'Toner', is fused onto paper by heat and pressure. High quality printouts Cost per page low (cheaper than ink-jet or dot matrix printers)
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The latest mice's include a scroll wheel for scrolling through long documents. The Human Resources it to select icons, Select programs, Install programs, to highlight work for editing etc. A scanner is a device which copies an image (such as a photograph, printed text, or handwriting) and converts it to a digital image in your computer. The Human Resources might use a scanner to copy original documents and pictures into a digital format. These can then be shared with other Reuter's departments. The keys on the Keyboard are pressed to enter data such as text, numbers and punctuation.
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The individual workstation has 64Mb (megabytes) of RAM (Random Access Memory) and 133MHz (Megahertz) processor that is then connected to the terminal server via a CAT SA 100Mb cable with a core 1Mb between servers and switch. The data i save at my workstation is not stored locally, however, is sent to a mainframe server located away from the main station. In the case of data becoming corrupt, deleted or lost, there is backup made elsewhere in the school that is provided by a UNIX based server.
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It is very similar to a roller ball mouse however works by a light in stead of a ball. The light detects the movement you are making and makes it appear on the screen as a pointer. Advantages * Dirt won't get caught in the light space to stop it working so it won't get stuck. * Easy to use. * Easy to find and Buy. Disadvantages * Wire can get in the way. * Can break down easily. * Can be slightly expensive. Tracker ball Mouse This is another pointing device however it has a unique still it a mouse upside down.
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Microsoft Publisher is used for making publications for people such as, business owners or a product promoter. The advantage of using Microsoft Publisher is that it makes publications efficiently and makes your publication look very professional, rather than trying to promote a product on a hand made poster or writing it up on a shop window. Process Microsoft Word Microsoft Word is a very good program to write essays, create tables, creating logos and so on. Not only being very easy to use, you can save files very easily and are kept safe.
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The tracker ball also doesn't take up as much space as a normal mouse, because a normal mouse you need sufficient space to be able to move it around freely while as the tracker ball stays in one place and all that is needed is to move the ball in the middle around with your hand. A tracker ball lets Scott run an independent life without needing the help of others. A tracker ball is also needed to use other technologies such as On Screen Keyboard.
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Another main problem his disability causes was when he had to use the telephone and especially difficult to use mobile phones this meant that he had to learn to use his left hand much more effectively. His personal life involves the use of the computer to chat to friends abroad and to join in on chat room s about things he's interested in like computers and politics. He generally stays in touch with my friends using the mobile phone and also by using email so they can arrange night out.
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3 Output Devices-These are the things that show the information the computer has processed and results (e.g. The monitor, printer) 4 Operating Systems-These are the programs and devices that run the computer internally; they run the hardware purely (e.g. Windows, Linux). 5 And Communications Devices-Used for communication between people like the line, internet and the modem. Hardware Hardware is the term used for the main computer Part and it literally runs the computer. It stores the information, runs software and programs and power the whole computer itself.
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This type of keyboard works by using a sensor and this type There are also keyboards that use an 8 pin connector. Just like a mouse. 8 pin connectors are mostly used on old computers. The best types of keyboards are the optical ones. An optical keyboard is a keyboard that does not use any leads or connectors to a computer. This type of keyboard allows the user to move around freely. The keyboard cannot be taken away a long distance.
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Software There are many different software packages available so that the viewing of mopeds will be successful. There is only one package that meets the needs of this desired task. I will compare each software package and see which the best one will be. Software Package Advantages Disadvantages Microsoft Word You can make each page contain its own separate piece of information, with the first page having a contents page so that you can look up the page number needed.
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