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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.
Tick ( ) if you know this.
PDA is a handheld computer that has a touchscreen and allows us to organise our daily routine
work.
Output refers to the result that has been processed by the CPU.
Projector
A projector projects or displays data from a computer screen onto a large
screen or surface for the audience.
Hashtag
#Barcode: A printed horizontal strip of vertical bars that is used for identifying specific items
#Embedded Computer: Combination of hardware and software designed for specific functions
REVISIT
Analog computer refers to devices that operate by 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 that involve 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

