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| Questão | Responda |
| Give 2 Advantages and Disadvantages of Laser Printers | Cheap to buy, can print on continuous stationary, low repair cost Noisy, Low quality printout, Poor colour printouts |
| State the two types of software, with 3 examples for each | Systems Software : File compression software, defragmentation, OS Applications Software: Word processing, spreadsheet, antivirus, databases, graphics packages etc. |
| Name and give advantages/disadvantages for the two types of monitor | CRT, |
| Give 2 Considerations when choosing a screen | Type of data to be viewed - high resolution required? Space available - CRTs larger Audience viewing - Large audience needs large display |
| How does file compression work? | . |
| Name, with 2 examples for each, the three types of storage medium | Magnetic storage - hard discs, floppy discs, DAT tape Optical storage - DVD, CD etc. Flash storage - SSDs, USB memory sticks, flash memory cards |
| Give 4 considerations when choosing a storage medium | Volume of data, purpose of storage, price, speed of recovery of data, size of device, Transferability required |
| What do both system software and applications software do? | System controls system hardware and components, Applications carry out functional tasks |
| List 3 main functions of system software | Managing RAM, allocation processor time, controlling where data is stored, communicating with input/output devices, handling errors, file permissions |
| Give 4 examples of utility programs (system software) | antivirus, disk clcean up, disk de-frag, recyle bin |
| Give some precautions that can be taken to minimise health and safety risks | well designed, organised work stations 3 point adjustable chairs with backrests Ergonomic devices Screens that can be adjusted and tilt/swivel Well designed software |
| Define validation and verification | Validation is the process of checking if data is sensible or reasonable Verification is checking by comparing to a previous set of data, e.g passwords |
| Give 3 things that need to be considered when evaluating a solution | Does the solution do what it is supposed to do? Does it work as intended? Is it effective? Does it meet the requirements? |
| Give 3 Advantages and Disadvantages of Laser Printers | High quality printouts, Cheap to run, Fast printing, Printouts dry Expensive to buy, large, can't use continuous stationary, expensive to repair |
| Give 3 Health and Safety responsibilities of EMPLOYERS | - Provide Sufficient Training for Employees -Ensure Software used is designed to be less stressful -Provide regular eye tests and pay for glasses - Ensure equipment is positioned where it can be easily accessed - Ensure proper equipment provided, e.g 3 point adjustable chair + backrest |
| What are 4 software related health and safety issues | - Poor Software design - Enough help provided - Easy to use (User interface must not be too complex) - Ensuring colours/text sizes used are suitable (Eye Strain) - All options must be accessible without too many mouse clicks (RSI) |
| What are the differences between a Client, User and Audience | Client = who requests solution User = who will update/manage system Audience = Who the solution is intended to be used by |
| What are the needs for standards when transferring data | - Efficiency: products used often support a range of different standards - |
| What are three different validation/verification checks | Format check - checks data entered is correct format e.g DD/MM/YY Range check Check digit e.g on barcodes Presence Check |
| Give 2 Advantages and Disadvantages of Inkjet Printers | Cheap to buy, can print on high quality photo paper Can be expensive to run, printout has to dry |
| Advantages/Disadvantages of Inkjet Printers | Advantages: Can print on high quality photo paper, cheap to buy, |
| CLEESE | Cultural → Legal → Economic → Environmental → Legal → Ethical |
| A) What are the different data types that can be input into a computer? | A) Text, still images, moving images, numbers and sound. |
| What needs to be considered when choosing an input device? | Type of data, volume of data, user preferences, cost considerations, where the device is to be used. |
| Name some automatic data capture techniques? | Bar codes, OCR, OMR |
| What needs to be considered when choosing a printer? | Type of output- text, graphics, photo Size of media Type of media - e.g continuous paper, photo paper Volume of output – considering speed Cost versus efficiency |
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