NEW
Font size
WorksheetsI/O DEVICES
Total questions: 20
Worksheet time: 9mins
The term used to define all input and output devices in a computer system is ________
Monitor
Software
Hardware
Shared resources
Which of the following is not an output device?
Plotter
Scanner
Printer
Monitor
Devices that let the computer communicate with you
Input
Output
Printer
Type
________ printers are the printers that print one character at a time.
Laser
Drum
Chain
Dot Matrix
What is the meaning of CRT?
Cathode Reaction Tube
Cathode Ray Timer
Complete Ray Tube
Cathode Ray Tube
Which of the following devices gives the paper a positive charge?
The laser
The print drum
The registration rollers
The transfer corona wire
Why is the print drum in a laser printer given a negative charge?
To attract the toner to every area of the drum
To attract the toner to the areas of the drum that have a stronger negative charge
To attract the toner to the areas of the drum that have a weaker negative charge
To attract the positively charged paper to the print drum
Why are both the developer drum and the print drum in a laser printer charged with –600Vdc?
So the paper is attracted to neither
So the toner is attracted to neither
So the toner creates a fusion cloud between the two rollers and the paper
So the toner is attracted only to weakly charged areas of the print drum
At what voltage is the paper in a laser printer charged?
+600Vdc
+100Vdc
–100Vdc
–600Vdc
What best describes how an inkjet printer prints an image?
One dot at a time to form a character
Spray painting a character
Striking an inked ribbon
ropping ink onto the paper
What is another name for a dot-matrix printer
Page printer
Spray printer
USB
impact printer
What is the recommended maximum length for a parallel cable?
10 feet
20 feet
25 feet
50 feet
What printer cable uses a male DB-25 connector to attach to the PC?
Serial
parallel
USB
Network
Why is a serial port called serial?
The pins in a serial port are all in one line.
The printer is addressed as a serial number.
Data for the printer is sent serially,one bit at a time
The serial ports are assigned serial numbers by the IEEE
What is the maximum length for a serial cable?
10 feet
25 feet
30 feet
50 feet
How fast is a USB port?
10Mbps
12Mbps
75Mbps
100Mbps
A computer monitor is also called a ----
VDT
VDU
CRT
None of above
Wireless mouse connects to the computer through----
Infrared light
Radio waves
Both of above
None of above
Text and images are displayed on monitor by individual dots are called ----
Cursor
Pixel
CRT
LED
