Page 12 - modular4.0
P. 12
Chapter Profile Chapter Profile
Clickipedia
The speed of a CPU is measured in Megahertz. Higher the value, faster is the information
processed by the CPU.
OUTPUT DEVICES
The output devices are used to display the information and result of computation to the
user. Some of the output devices are:
Monitor
The monitor is one of the most familiar output device. It is called the
Visual Display Unit (VDU). The images that you see on the monitor are
made up of tiny dots called pixels. The clarity of the images depends
on the number of dots/pixels on the screen per inch.
Monitor
Printer
A printer is an output device that allows you to print the work done on the computer on a Exercise
sheet of paper. The most commonly used printers are: Dot matrix printers, Inkjet Printers
and Laser Printers. A. Tick (3) the correct option.
Dot matrix printers work like typewriters. The printer head strikes the paper and ink 1. Which printers work similarly to typewriters?
ribbon to print a character.
a. Inkjet b. Laser
The Inkjet printer prints line-by-line by spraying ink on a sheet of paper.
c. Dot matrix d. Drum
The Laser printer uses a laser beam to print on the paper.
2. Which input device is used to play games on the computer?
a. Touchscreen b. Joystick
c. Microphone d. Graphic Tablet
Dot matrix printer Inkjet printer Laser printer 3. Which component of CPU stores data and instructions?
Plotters a. ALU b. CU
Plotters are just like printers but are much bigger in size. There are mainly two types of c. Memory Unit d. Storage Unit
plotters: Drum Plotter and Flatbed Plotter.
4. Which input device would you choose for entering words and numbers?
a. Keyboard b. Mouse
c. Scanner d. Microphone
Flatbed Plotter Drum Plotter
10
10 Modular (Ver. 4.0)-III(Ver. 4.0)-IV
Modular

