Question 4
A professional photographer uses analogue cameras and a computer system for his business. The computer is used to prepare documents and keep records of clients’ accounts. Copies of these documents are stored in CD-ROMs and Floppy disks. The photographer now plans to innovate by using digital cameras and the computer for taking, editing and printing photographs.
- State two hardware changes required on the photographer’s computer to achieve the planned innovation.
- Give one reason:
- for each of the changes in 4(a).
- why the photographer should use external hard disk instead of floppy disk to store data.
(c) State two advantages of switching from analogue to digital camera.
Observation
The question tested the candidates’ knowledge on computer application as it applies to real life situation. It was reported that most of the candidates who attempted this question demonstrated poor knowledge of computer application to solve real life problems.
The expected answer is:
(a) Hardware changes on the photographer’s computer to achieve the planned innovation
- Hard Disk size
- Higher processor/ processor speed
- Increase RAM size
- Install Graphic Adaptor/Card
- Digital Camera
- Printer
- Multiport Adapter
- DVD writer/Drive
- Docking port / USB cable interface for the camera
- Card Reader
- SD Card
- Monitor with higher resolution.
(b)(i) Reasons for the changes
- Increase hard device size will accommodate more storage capacity.
- A higher processor will ensure efficiency in processing of tasks
- Increased RAM size will improve performance of the computer.
- Docking point/ USB cable interface/ Multiport Adapter for the camera will ensure easy transfer of images from the camera to the computer.
- Increased monitor resolution will enable the photographers to properly edit the images and give a good output
- Graphic adaptor to connect graphic display to enhance the graphical capabilities of the system.
- Printer to print copies of photographs.
- Card Reader to transfer photographs to and from SD Card to the computer/camera
- DVD writer/Drive to transfer photographs to CD-ROM
(b) (ii) Reasons for using external hard disk
- More durable
- More Storage Space/ Capacity
- Usable on Multimedia devices
- Faster access time
- Robust storage media
(c) Advantages of switching from analogue to digital camera
- Better resolution
- Faster processing
- Long term cost effectiveness
- Instantaneous satisfactory
- Multiple functions
- Video camera
- Easy to share
- Smaller and lighter
- Easy editing
- Massive storage space for photos