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WorksheetsICT revision
Total questions: 18
Worksheet time: 9mins
A printer is a type of
Processor
Input device
Software
Output device
Which of these devices is not used to control a screen pointer?
A mouse
A trackpad
A webcam
A joystick
Which type of computer is most portable?
Supercomputer
Desktop
Mainframe
Tablet
A biometric scanner controls access to a secure warehouse. One advantage is
No one can get into warehouse
No need to carry swipe card
Biometric scanner always recognize banned user
Identity theft is difficult
.....................................is used when computer programs are turned on. It is cleared once the machine is shut off.
The network interface
The optical disk
Random Access Memory (RAM)
Read Only Memory (ROM)
_____ is used to plug peripherals into the system unit.
A flash drive
USB port
A video card
An audio card
Which are the impact of the following new technologies?
AI bio metrics
Quantum cryptography
Mainframe computer
Virtual reality
This device is made up of a matrix of filled in dark squares on a light background.
OMR
OCR
Bar code reader
QR codes
* This device are used where low noise is required
* It fast, high quality, high volume printing is required
* Toner cartridge last for a long time
Based on the descriptions, what the type of printer it is?
Inkjet printer
Laser printer
3D printer
Dot matrix printer
What is this device?
Contactless card reader
Chip and pin reader
Magnetic stripe reader
RFID reader
Which one is the use of this device?
selecting objects on CRTscreen
having a conversation while chatting online
enable video conferencing to take place
Used to produce drawings,computer graphic,etc
Which is the input device?
Which is the disadvantage of hard disk drives?
Can be used as backup system to prevent loss of data
easily damaged
Very slow access times
Their read or operation can be quite noisy
What is the advantage of Blue ray discs?
Fast data transfer rate
Expensive
compact and portable media
lower storage capacity
Choose which are the direct data entry and associated devices?
RFID
Optical Mark Reader
Optical Character Reader
Cathode Ray Tube Monitor
What are disadvantages of this device?
Less secure than chip and pin method
It is easier for thieves to copy details of the card
Fraudulent machines can copy card details
The pin could be read by some one watching or use of mirrors
This device are part of the control process--digital signals are sent by the computer to this device to affect or control the real world. What is this device?
Speakers
Sensors
Actuators
Joystick
What is the difference between inkjet printer and laser printer?
inkjet printer - are used when low output volumes
Laser printer- are used when high output volumes
inkjet printer - slow printing
Laser printer - faster printing
Inkjet printer- more expensive to buy
Laser printer - cheaper
Inkjet printer-high quality printing
Laser printer - cheap high quality printing
