ICT - IGCSE
TEST SERIES 1 (Chapter 1,2)
TEST 1
Student’s Name :
Marks : 110
Q.1
Magnetic Ink Character Reader
Barcodes Reader
Optical Mark Recognition
Numeric Keypad
2
3
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4
Prosthetic Limbs
5
Ram is much more expensive per byte than ROM. Ram operates at very fast data transfer and
access speeds. Ram is volatile memory where as ROM is not. ROM is read-only memory where
as RAM is random access memory.
6
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7
Touchpad
Trackerball
mouse
Keyboard
Bar Code Reader
8
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9
Dot Matrix Printer
Graph Plotter
Laser Printer
10 Compare and contrast between CLI and GUI. [8]
Ans ---------------------------------------------------------------------------------------------------------------------------------------------A GUI is much more beginner freindly where as CLI is much more difficult for beginners to use.
----------------------------------------------------------------------------------------------------------------------------------------------A GUI uses WIMP whereas CLI does not. A CLI provides direct communication with the computer where
----------------------------------------------------------------------------------------------------------------------------------------------as only limited commands can be given with GUI. A CLI is much faster than a GUI. A CLI demands programs
---------------------------------------------------------------------------------------------------------------------------------------------to be keyed in where as a GUI uses just a click of button. CLI is much more time consuming where as
---------------------------------------------------------------------------------------------------------------------------------------------GUI is less time consuming. Simple tasks are much more complex in a CLI than in a GUI.
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11
Bar Code
Magnetic Stripe
DVD ROM
Laser Printer
12
Advantages of using RFID instead of bar codes are as follows: RFID requires no human intervention
unlike in a barcode which requires humans to scan it. This also decreases chances of error.
It can be less time consuming as barcodes require manually scanning each barcode
unlike in a RFID tag which is a automatic process and detects if a book has been check-out.
RFID tags are also a fool proof technology has they cannot be peeled away by customers
unlike in a Bar code .
13
Sensor
Remote Control
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14
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15
Hardware are the physical components which perform a specific task
based on the
used to build a computer.
Touch Screen
Camera
Operating System
Device Driver
16
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17
A keyboard and mouse may not be beginner freindly which is not a problem for a touch screen.
A touch screen takes up less desk space compared to a keyboard and mouse and monitor.
A touch screen may be too small for people with eyesight issues or glasses as everything
will appear small. Typing on a physical keyboard would be much easier than typing on a
small on screen keyboard.
18
A chip reader
Optical Character Recognition
A bar code reader
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19
The benefits and drawbacks of using a contactless card system rather than cash for
pupils is as follows. Using a contactless card system would make transactions much
faster. It would also make it easier for students as managing cash and taking care of
it so it does not get damaged or torn might be challenging. However money in the card
can only be used at the cafeteria and not in any other cases. Students may also have to
pay extra fees such as maintenance fees ,etc. Using a contactless card would cause
fewer pupil losing their money or getting it stolen as a card is a very safe technology.
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20
Advantages
Faster registration as pupils do not need to fill in OMR forms.
More accurate because there is no need to manually read or process marked forms.
Reduces paperwork and printing costs.
Disadvantages
Expensive to install and maintain cameras, software, and hardware.
May fail to recognise pupils if lighting is poor or their appearance changes (e.g., glasses, hairstyle, masks).
System failures or power/network outages could prevent registration.
21
What are the differences between Li-Fi and Wi-Fi? [2]
Ans ---------------------------------------------------------------------------------------------------------------------------------------------The internet will be disconnected if there is anything blocking the both or the light in li-fi unlike in a
---------------------------------------------------------------------------------------------------------------------------------------------wi-fi. A li-fi uses light unlike in a wi-fi
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List the advantages of biometrics for attendance in the school compare to manual work. [6]
Ans ----------------------------------------------------------------------------------------------------------------------------------------------It would much quicker than manual entry. It would also be fool proof as it requires no human intervention
----------------------------------------------------------------------------------------------------------------------------------------------unlike in manual work. It would increase security as every students biometrics are stored. Students also
---------------------------------------------------------------------------------------------------------------------------------------------cannot mark false attendance for their freinds. Data can be easily accessed as its in electronic form.
---------------------------------------------------------------------------------------------------------------------------------------------Attendance records can also be made much quicker.
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Write the differences between tablet and laptop. [6]
Ans ---------------------------------------------------------------------------------------------------------------------------------------------A tablet uses a touch screen where as a laptop does not. A laptop has a keyboard in-built where as a
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tablet uses a on-screen keyboard. A laptop is much bigger in size compared to a tablet. A tablet is much
----------------------------------------------------------------------------------------------------------------------------------------------more portable than a laptop.
A tablet can be used for calling where as a laptop cannot be.
---------------------------------------------------------------------------------------------------------------------------------------------A laptop is much more expensive than a tablet. A tablet is much likely to be stolen or lost as its more
---------------------------------------------------------------------------------------------------------------------------------------------portable.
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List three tasks performed by spreadsheet. [3]
Ans --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Perform calculations using formulas and functions.
Store and organize data in rows and columns.
----------------------------------------------------------------------------------------------------------------------------------------------Create charts and graphs to present data visually.
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Write the differences between dialogue base interface vs. gesture base interface.[6]
Ans ----------------------------------------------------------------------------------------------------------------------------------------------A dialogue based interface uses voice whereas a gesture based interface uses body language .
----------------------------------------------------------------------------------------------------------------------------------------------A gesture
based interface cannot be used in dark or low light conditions whereas a dialogue
based
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interface can be. A dialogue interface can be. can be used by people with mobility issues unlike a gesture
----------------------------------------------------------------------------------------------------------------------------------------------based interface. A person with a lisp or speech impediment's command may not be interpreted correctly
----------------------------------------------------------------------------------------------------------------------------------------------by the dialogue based interface which is not a problem for the gesture based interface.
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----------------------------------------------------------------------------------------------------------------------------------------------Learning all the commands in a gesture based interface can be very difficult to learn and memorise
----------------------------------------------------------------------------------------------------------------------------------------------unlike in a dialogue based interface.
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List four areas where augmented reality is used. [4] ---------------------------------------------------------------------------------------------------------------------------------It is used in surgical training ,military drills ,for entertainment and to provide training for tasks
----------------------------------------------------------------------------------------------------------------------------------such as bomb defusing or in fire safety drills.
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