Page 17 - Trackpad_V1_Book 6_Flipbook
P. 17
Drum Plotter: It uses a drum revolver to move the paper and the pen or the jets of the ink
during the printing process. The paper is placed over the drum which is then rotated. The pen
then moves along in a horizontal or vertical direction to print the output.
Projector
A projector projects or displays data of computer screen on a large screen or
surface for the audience.
Tick ( ) if you know this.
PDA is a handheld computer that has a touchscreen and allows us to organize our daily routine
works.
Output refers to the result that has been processed by the CPU.
Hashtag
#Barcode: A printed horizontal strip of vertical bars which are used for identifying specific items
#Embedded Computer: Combination of hardware and software designed for specific functions
REVISIT
Analog computer refers to the devices which operates on measuring instead of counting.
Digital computer refers to a computer that uses binary digits to generate, process and display data.
Hybrid computers are those devices which involves functionalities of both analog and digital computers.
Microcomputers are made to be used by one person at a time.
Minicomputers are small general-purpose computers having the capability to serve a number of users.
Mainframe computers are very large, fast and powerful computers.
Supercomputers are the largest and fastest of all types of computers and they can process very large amount
of data quickly.
Embedded computer is a type of microprocessor that is developed for performing a specific task.
Handheld computer can easily be stored in our pockets and used by holding it in our hands.
Computer works in three steps: input, process and output.
1. Tick ( ) the correct option.
a. Which of the following is an example of a supercomputer?
(i) PARAM 9000 (ii) HCL Magnum
(iii) VAX7500 (iv) Both (i) & (ii)
Fundamentals of Computer 15

