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GCSE: Hardware

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  • Marked by Teachers essays 1
  • Peer Reviewed essays 4
  1. The keyboard is the most widely used input device and is used to enter data or commands to the computer

    The computer's processor scans the keyboard hundreds of times per second to see if a key has been pressed. When a key is pressed, a digital code is sent to the Central Processing Unit (CPU). This digital code is translated into ASCII code (American Standard Code of Information Interchange). For example, pressing the 'A' key produces the binary code 01100001 representing the lower case letter 'a'. Holding down the shift key at the same time produces the binary code 01000001 representing the upper case letter 'A'.

    • Word count: 2247
  2. Arh hardware and software

    The next click on a selected position or two quick clicks on it causes a particular action to take place on the selected object. For example, in Windows operating systems, it causes a program associated with that object to be started. The second button, on the right, usually provides some less-frequently needed capability. For example, when viewing a Web page, you can click on an image to get a popup menu that, among other things, lets you save the image on your hard disk.

    • Word count: 2652
  3. How ICT Effects A Person With Special Needs.

    Although colour blind, he got his driving licence when he was 22. In 1988 he was registered as Partially Sighted and 2 years later he was registered blind. Being blind, in government terms, means that he is 80% disabled, so this means that he couldn't do many things that he did before, such as drive and do the work that he did before. He became less able to do things in work and found himself being demoted because of his lack of sight.

    • Word count: 2130
  4. PC input devices - advantages and disadvantages.

    It could also cause cramps in the fingers. The mouse is the most common pointing device. People commonly use a mouse on a small mat and the mouse has a small cursor on the computer. This small cursor called a pointer follows your movements on screen. With this pointer you can select options using icons or menus on screen. To select the icons people will have to click on the 2 or 3 buttons on the mouse. The left button is most used out of the 2 or 3 buttons. Most mice have a small ball located underneath it.

    • Word count: 2229
  5. Hardware & Software - User Requirements of Burgers away.

    Keyboard The keyboard is the most commonly used input device and is used to key in data or to enter commands to the computer. The great majority of keyboards follow the standard IBM layout and design. Touching or pressing a key sends an electrical signal to the computer which interprets it as a character or function. The keyboard is divided into four main areas: * Function keys across the top * Letter keys in the main section * A numeric keypad on the right * Cursor movement and editing keys between the main section and the numeric keypad.

    • Word count: 2492
  6. A computer system consists of hardware and software.

    Under the mouse is a ball, which rolls as the mouse is moved. This movement of he ball causes two shafts to rotate inside the mouse; one shaft records the movement in the north-south direction and the other shaft records the east-west movement. When the screen pointer is over a0n icon or menu selection, the mouse button can be clicked, double clicked or dragged to activate a process. Some mice have a small wheel as well as the buttons. The function of the wheel depends on the software being used on the computer; in a document, it can allow the

    • Word count: 2187
  7. What is hardware?

    The standard mouse comprises casing, buttons and base. As technology has developed, the mouse has evolved from its original design and now come in different styles to suit different requirements. Scanner This is an input device that reads words or graphics from a printed page and translates the pattern of light and dark (or colour) into a digital signal the computer can store and manipulate. The most common scanner is the flatbed scanner that works quite like a photocopier. Hand-held scanners are still used but, as flat board scanners are now quite inexpensive, their use is diminishing.

    • Word count: 2766
  8. Hardware analysis.

    Each package is discussed below along with its advantages and disadvantages. Software Advantages Disadvantages Microsoft Word * can be used to insert pictures & video clips * includes graphics and fancy headings * Staff will not need training, as MS Word is very similar to the current software used - MS Works * Cannot be edited with as much ease as a true desktop publishing package. * The cost of the program is an issue Front Page Express * Specifically written for producing web sites, which is accessible from anywhere in the world * Difficult to use - Staff will

    • Word count: 2363
  9. Hardware and software for a hairdressing business.

    Printer Printers are used for making a hard copy for a piece of work. There are different types printers such ink jet printers and laser printers. Keyboard A keyboard is a device that inputs information. It is used to enter data into the computer. On the keyboard there is a set of alphabet keys and a set on number keys. Mouse A mouse is used to navigate on the computer. And appears on the computer as a cursor on the computer screen or a arrow Picture.

    • Word count: 2475

Conclusion analysis

Good conclusions usually refer back to the question or title and address it directly - for example by using key words from the title.
How well do you think these conclusions address the title or question? Answering these questions should help you find out.

  1. Do they use key words from the title or question?
  2. Do they answer the question directly?
  3. Can you work out the question or title just by reading the conclusion?
  • Discuss how hard ware and soft ware of a C.P.U (central processing unit) could help a supermarket like Tesco.

    "3.0 Conclusion In this world of hardware and software it can help a growing chain store like Tesco by: - The checkouts don't just need keyboards to input the information of the products that people purchase you can use sensors or scanners, OMR, OCR and MICR. A supermarket could also use RAM and ROM. They could use the RAM for deals of the day, which are a one-day off, and the ROM to store the prices of the entire product in the shop. At Tesco they would use printers to print the receipt and use speaker to send messages to employees and customers; they can use a monitor/VDU to see the prices of the products that are being purchased. In the3 supermarket the security could use a joystick to move cameras around in the shop. They can use a microphone to tell customers the special deals of the day or week and they could use digi cams to find thieves. The supermarket would use ports on their checkouts to connect the receipt printer and the MICR to the main computer and cables would connect all of these and sometimes they might use USB."

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