Input devices
Input Devices: An input device is a device used to enter information into a computer. Name Picture Description (function and characteristics) Recommended to John Brown (Y/N) Reason Barcode reader Barcodes are different groups of vertical bars that can be read by an optical scanner. Barcodes are printed on nearly every product that you can buy. Shops use them because they are cheap to produce and very durable. No At present, a barcode reader is not one of John Browns requirements. Maybe at a later stage he may decide to purchase one to make it easier to enter product information onto the computer. Keyboard They are the most popular input peripheral. Most computer systems come with one. It is easy to make mistakes when you are using a keyboard. There are some specialist keyboard like a Braille Keyboard which has fewer keys Yes Keyboard comes with the PC and the laptop Mouse This input is small (like a mouse) and has a 'tail' in the form of a wire connecting it to a computer. When it is moved, a pointer or cursor moves on the screen. Yes On the laptop, there is a touch pad; it is used instead of a mouse. A mouse comes with the computer. Roller ball Can be used instead of a mouse, it is like an upside-down mouse. The user rotates the ball with their thumb or the palm of their hand. No John brown did not require a roller ball. maybe if he can require it later,
Using Hardware
Using Hardware I used very basic hardware in my system for the inputs, processors and outputs. I am going to explain the hardware, its advantages and disadvantages of using them and also the alternative hardware devices that I could have used. Backing Store: This consists of the disk drives used to store data when the power is switched off. They also include floppy disks, memory sticks etc. Output Device: These include printers etc. They are used to provide output data in the form of printouts, screen displays, leaflets etc. Input Device: These are used to get the data into the computer. They include scanners, microphones, keyboards etc. CPU (central processing unit): The CPU is the brain of the computer which performs all of the processes that take place in the computer system. Input Devices Devices used and advantages I have decided to use simple but necessary devices to buy and use for my company. This is due to the fact that my company's main task is to store information, book holidays and to write to our customers, therefore we do not need any expensive or over the top devices as we simply do not need it and it only be a waste money. 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