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Computer Hardware
Answers are in red. I've also written some extra notes in green to help you understand & to remind you of key
learning.
Here are some related past paper questions to try:
1) Identify 2 features of laptop computers that make them portable & light. [2]
Two answers…

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Graphics tablet/scanner/digital To draw/obtain/create images for the web pages.
camera/DV camera
Web-enabled keyboard So can use shortcut/programmable keys when using the
internet
Mouse with scroll wheel For scrolling up/down web pages.
Microphone For recording of sounds to go on websites
5) A user selects a computer file but cannot open…

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Speakers So the whole audience can hear any sound on the
presentation.
Digital projector To project the presentation onto a big screen so that it is big
enough for the whole audience to see
Remote control OR cordless mouse So the salesperson can interact with the presentation e.g. so
he…

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DVDs hold a lot more than CDs so he will be able to store more
work on a DVD than on a CD. However, a CD will still probably be
big enough (have enough storage capacity) as they are usually
either 650MB or 700MB and he is unlikely to need…

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to scan the work in whereas he
can open a file on a USB
memory stick very quickly.
10) A computer based task is to be given to a group of students. One of the students is visually impaired. Explain
two different adaptations that could be made to the computer…

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Wider range of software (lot more programs) is available for desktop computers compared to palmtops. The
software on palmtops is also often simplified version of the full version that runs on a desktop computer.
12) Most supermarkets have Point-of-Sale (POS) terminals (in other words the checkouts) which use bar code…

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CD drive//DVD drive/hard drive/memory stick to store and allow access to the presentation.
Electronic white board to view, and possibly control and add to the presentation as it is running.
Large amount of RAM [1] to enable the computer to respond quickly to the requirements of the presentation while
it…

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Examples of valid points and expansions:
Point Expansion
Use a credit or debit card To save customers having to carry lots of cash around
To save the shopkeeper having to keep lots of cash in his store, so he
won't need to go to the bank to pay in cash…

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Barcodes used Items scanned by barcode reader every time they sold to count how
many items are being sold
Electronic tagging of items For security ­ the electronic tags are removed at the checkout when
the customer pays. If the customer attempts to steal the item the tag
will set…

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May accidentally share the wrong picture with the wrong person
Cameras on phones are often have fewer megapixels (not as good quality) than a separate digital camera so the
pictures don't look as good when they are printed
Some establishments ban use of mobile phones
Some people may see it…

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