Computerisation in a business like Craven Plc Essay

Plotters A thingummy designed to produce charts, drawings, maps and other forms of graphical cultivation on paper. The images can be produced by pens, electro-statically, or ink jets. retentivity Methods There ar two different forms of storage available these be main storage and sustenance storage. Main Storage This consists of the Hard dish drive (HDD) and the discette disk drive. These are storage facilities present at bottom the com clotheer. Information can be saved onto the HDD ready to be clear at some future date. Application squashyware packages and programmes are alike stored on the hard disk.The average PC will contrive an interior HDD of at least 6Gb. The floppy disk drive is another grapheme of main storage. It intents floppy disks to store selective selective entropy in a homogeneous way to a hard drive. Backing Storage The performance of a computer establishment can be improved by the add-on of more than memory. If there is too little memory then more frequent access to the hard disk is directd and this will check down the everywhereall system performance. Therefore many computer applications require quick, direct access to individual records within a file. For this reason, we look at backing storage.Backing storage comes in various forms for face comp locomote disks and floppy disks. Backing storage is a portable and convenient way of deliver study. To reduce the risk of information loss it is wise to save information on the computers hard drive and make a copy onto a disk or another type of backing storage for redress purposes. Types of backing storage Floppy disks The most common storage turn available, these provide extremely cheap storage and have a force of 1. 5 Mb. Compact Disk (compact disc write-onceOM) These have been used for some long time as storage devices for computer software.It only accesses information which is already stored on it and is able to store 650 Mb of information. Zip Drives A storage device that has become popular everywhere the last few years because it offers the thingmabob and portability of a floppy disk, combined with a 100 Mb capacity. CD-R and CD-RWThe difference being that CD-R disks can only have info saved to them once, While CD-RW can be used in the same(p) manner as other storage devices having data saved to them on a re-usable basis. videodisk (digital versatile disc) using the same basic principles as the CD, DVD packs the data more densely and can store 4.7Gb compared with the CDs 650Mg, can hold 133 minutes of video, with Dolby surround sound. Data pens A new storage device that plugs into the computers USP drive. These are small and compact and have a capacity of 80Mb. Magnetic Tape Convenient and cheap fair for backing up hard disks onto computers. Mostly used for mainframe computers for storing information for a long duration. Magnetic tapes will not be commensurate for a small company like Craven Plc. Data bulwark Craven Plc must compl y with the data protection act in order to hold personal information of customers.The data protection act works in two ways. It gives you certain rights. It also says those who record and use personal information must be open about how the information is used and must follow the eight principles for good handling. The eight principles were put in place to make sure that your information is handled properly. They say that data must be 1. Fairly and lawfully processed. 2. Processed for limited purposes. 3. Adequate, pertinent and not excessive. 4. Accurate. 5. Not kept for longer than is necessary. 6. Processed in describe with your rights. 7. Secure, and 8.Not transferred to countries without adequate protection. Micro computers Micro computers include personal computers and laptop computers, they are usually equipped with hard disk, floppy disk drive, mingled with 1 and 32 megabytes of memory, a keyboard and a VDU unit. Microcomputers will be suitable to fulfil the needfully of Craven Plc. Mainframe Computers These are freehanded systems that can hold vast amounts of data. Mainframe computers occupy a satisfying floor of a fair sized building. These powerful mainframe computers are present in very large companies storing huge amounts of data on to disk.Mainframe computers cost tens of thousands of pounds, therefore they are not suitable for a small business like Craven Plc. File Server This is a specially configured microcomputer to control the exchange of files between interlock users. A file server also has more memory and disk storage than normal microcomputers. These classifications of computers are usually based on material size, speed, processing capabilities, memory size, disc storage, capacities and cost. read and Sequential Access Direct access devices can go directly to the file or record. For example a CD can go directly to track human body 10.Sequential access devices have to run through the file sequentially, for instance, if we involve track 10 on a cassette, The cassette moves from the beginning from track 1 to 9 until it comes to track 10. 4) Proposed purchases and prices of equipment 2x Sony Intel 2. 6GHZ DVD CDRW Laptop 256Mb RAM, 40Gb Hard Drive DVD/CDRW Drive 15 inch TPT screen i 899 each(prenominal) = i 1798 4x Packard Bell 6111 Intel Pentium 42. 8GHZ central processor and 15 TFT admonisher Intel P4 2. 8 GHz processor 512 Mb RAM 160 GHb Hard Drive i 1199 each =i 4796 4x PacKard Bell 5050 and Xp2600+ PC and 17 CRT monitor Athlon Xp 2600 & processor 256Mb RAM.60 Gb hard Drive i 549 each =i 2196 4x Hewlet Packard DJ 9300 A3 Desktop printer i 279 each =i 1116 3x Hewlet Packard scanner i 99 each =i 396 Network- Windows 2000 professional i 3449 Web Designer Approx 3000to4000 Training costs i 2000 Specialist soft ware Sage Accounts i 2000 Web Train Video Conferencing i 1000 Total cost i 22751 5) Proposed method of change over from manual to the new computerised systems Before the change over can book place a n extensive upbringing programme needs to take place. This may take several months to train the current workforce in the condemn operating procedures of the new system.To ensure information will not be lost in transition the old manual method needs to be in place for the first 2 months along fount the new computerised system. In the unlikely case of system collapse information and data will still be on hand. This change over will inevitably endure a small cost of training and staff development. 6) Procedure to transfer the payroll from the old to the new system Payroll is something Craven Plc cannot afford to get wrong. Therefore manual systems need to be in place for 3-4 months along side the new computerised perspicacious accounts system. This will again ensure against loss of data.