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WorksheetsOCR J275 Hardware Part B
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Why are input devices needed?
a)
To show the results of processing.
b)
To convert analogue data into a digital form the computer can understand.
2.
Why are output devices needed?
a)
To show the results of processing.
b)
To convert analogue data into a digital form the computer can understand.
3.
Which input device is commonly used for gaming?
a)
Keyboard
b)
Mouse
c)
Joystick
d)
Barcode Scanner
4.
Which input devices inputs letters, numbers, symbols and special characters into a computer?
a)
Microphone
b)
Tracker Ball
c)
Mouse
d)
Keyboard
5.
Which input device would you use to capture sound?
a)
Web cam
b)
Microphone
c)
Speakers
d)
Monitor
6.
Which input device would you use to capture video in real-time?
a)
Web cam
b)
Sip and puff switch
c)
Microphone
d)
Monitor
7.
Which output device produces a hard copy?
a)
Speakers
b)
Printer
c)
Keyboard
d)
Monitor
8.
Which output device is used to produce a display?
a)
Printer
b)
Speakers
c)
Web cam
d)
Monitor
9.
How does an inkjet printer work?
a)
Ink is in the form of a toner that is sealed onto the page by heated rollers.
b)
Sprays ink onto the page.
10.
How does a laser printer work?
a)
Sprays ink onto the page.
b)
Ink is in the form of a toner that is sealed onto the page by heated rollers.
11.
How does a dot matrix printer work?
a)
Sprays ink onto the page.
b)
Ink is in the form of a toner that is sealed onto the page by heated rollers.
c)
A print head strikes the paper through an ink ribbon.
12.
Which of the following Input/Devices does a supermarket not use?
a)
Bar code scanner
b)
Chip and pin reader
c)
Touch Screen
d)
All 3 are used.
13.
What sensors would be used to monitor patients in hospital?
a)
Light, heat and sound.
b)
Heart rate, blood pressure and temperature
14.
Why is data in a computer represented in computer systems in binary form?
a)
Because they have circuits which are either on or off, which gives them two states to work from to make calculations and run processes
b)
Because it is easier for them to understand.
15.
Which logic diagram does the image represent?
a)
AND
b)
OR
c)
NOT
16.
Which logic diagram does the image represent?
a)
AND
b)
OR
c)
NOT
17.
Which logic diagram does the image represent?
a)
AND
b)
OR
c)
NOT
18.
The _____ gate only outputs a 1 if both inputs are 1. If any of the inputs is 0, the output is 0.
a)
AND
b)
OR
c)
NOT
19.
The ____ gate outputs a 1 if either of the inputs is 1. If both inputs are 0, the output is 0.
a)
AND
b)
OR
c)
NOT
20.
The _______ gate gives the opposite output of the input. E.g. if the input is 0, the output is 1 and if the input is 1, the output is 0.
a)
AND
b)
OR
c)
NOT
Reset
