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

How do you configure hardware and software

Extracts from this document...

Introduction

How do you configure hardware and software A computer system is made up from various components, some of which are inside the "system unit", some of which are outside, and some of which are used to communicate with the user (see also User Interfaces, and Chapters 32 and 33 of Heathcote). Peripherals Peripherals are hardware devices attached to the computer system that expand the capabilities of the system. They are attached via an electrical connection (e.g. they are plugged into one of the ports at the back of the computer), and generally require some software running on the computer to control or "drive" them (see Drivers). Examples of peripherals are things such as: * Printers * Plotters * Scanners * Barcode readers Storage Devices Computers need to store information, in order that it can be retrieved, searched, sorted, etc. There are two types of storage used by computers: Primary Storage: This is the computers "main memory", or RAM (Random Access Memory). RAM is so-called because the information can be accessed by the processor in any order, unlike the information on, say, a tape, which always comes in sequence. When we say that the computers in the school have 16Mb (mega-bytes) of memory, it is the primary storage we are talking about. The programs you are currently running, and in most cases the data they are using (e.g. ...read more.

Middle

Daisy wheel printers are limited to only one font (unless you change the wheel) and are not capable of producing text in different orientations (e.g. landscape), or graphics. The two most common types of printer are ink jet (or "Bubble Jet") and laser printers. These are both non-impact methods. Ink jet printers effectively spray the ink onto the page; this can make the output quite wet if large areas are covered (e.g. a picture is printed). They can also be quite fussy about the sort of paper used; if it is too absorbent, then the ink will spread like in blotting paper, and if the paper isn't absorbent enough, then the ink will set on the surface and take longer to dry, therefore being prone to smudging. Laser printers don't use ink at all, but a black powder called toner, which is melted onto the paper by a hot roller. This means that you need to be careful when using transparencies and labels as they can melt (in the case of labels, the adhesive backing can melt and the labels can come off and stick on the roller). Laser printers are generally faster, but more expensive (especially if you want colour) than ink jet printers. Ink jet and laser printers are described in more detail in Heathcote, page 149. Display Devices The computer's output is normally displayed on a monitor, or Visual Display Unit (VDU). ...read more.

Conclusion

You will not be able to use certain fonts that a printer may support, for example, if the word processor you are using will not let you select that font, or if you are printing from, say, Notepad. Also, there is no point in you being able to scan things in 24-bit colour (i.e. 16 million colours) if your monitor cannot display that many, or you need to save the image as a GIF (GIFs only support 256 colours; if you want more colours than that, save your picture as a jpeg). Some modern printer drivers are applications in their own right, and have minimum hardware requirements specified. The drivers for my printer at home, for example, will not run on a 386. Examination Questions When installing or configuring a particular word processing package, the documentation states that the correct printer driver must also be installed. What is a printer driver, and why is it necessary? (1997) A company sells a range of health foods at five different shops. It also sells directly to the home from a number of vehicles. There are hundreds of different items of stock and many items are seasonal, so items in stock are constantly changing. Customers purchase goods and pay by cash, cheque or credit card. The company is considering a computerised system to help manage sales and stock control. Discuss the capabilities and limitations of current * communications devices, * input devices, * output devices and * storage devices appropriate for establishing a computerised system for this company. (1997) ...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. Control Unit, Memory Unit, and Arithmetic Logic Unit. The CPU or Central Processing ...

    -ROM is used to store the bootstrap program. -ROM is used because when the computer is initially switched on there must be a program present that can be used to load up the rest of the operating system from secondary storage. This program must not be altered because without it the computer cannot start to work.

  2. Business blue print document for the implementation of SAP R/3 (4.6B) payroll at Mastek ...

    > Anthem Health provides both Medical and Dental insurance for MSI employees and their dependents. LIFE INSURANCE > MSI provides life death and dismemberment insurance coverage for all of its employees through UNUM Life Insurance Company effective from the date of joining MSI.

  1. Primary or Secondary Storage.

    a wordprocessor ; (b) the operating system or the part of the operating system needed to start up the computer; utility programs, including anti-virus programs and disk management programs. NOTE: The contents of ROM cannot be changed in any way (hence read only) not even when the computer is turned off.

  2. System I designed in order to produce a promotion package for her newly formed ...

    My e-mail is very slow or not working correctly. � To use WordMail as your e-mail editor, you should have at least 12 megabytes of memory available. � Before using WordMail, close any Word dialog boxes that are open. � Programs that work in the background, such as virus-scanning programs, may slow down WordMail and Word in general.

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

    Laser printers come in black and white as well as colour and give a very high quality print, which is suitable for producing business letters and reports as well as graphics. I would say the disadvantages of this type of printer are its size and also the price.

  2. Infernowear is a new company run by a self-employed creative designer aiming to producing ...

    The third indicator was for any customer to have more than one order line. This has not been a problem at all, I have made of 50 order lines for one customer and it still let me add more. This performance indicator has been easily met.

  1. Programming Techniques

    (any statements can be placed in the loop) end This will display Line 1 Line 2 Etc as count is automatically incremented Subroutines and Parameters Top-down design is a method of solving a problem by breaking it down into tasks and then into gradually smaller and smaller tasks.

  2. Describe the hardware and software used to create and edit graphic images and compare ...

    This means there is always risk of losing data. There is also a lot of time wasted loading an operating system. You load the same things each time you push the power on. It would be better if the RAM was non-volatile and kept the data in memory all the time without having to load it.

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