Category : 2nd Class
As a result of the processing the information that either the person gets the reservation or is unable to get the reservation is output. The end result is called output. The output may be in the form of a ticket, if seats are available or a message turning down the request. In case the customer is given reservation, his details are stored on the computer. The information regarding availability of seats is displayed on the display unit. Hence, the VDU becomes the output device. If a ticket is to be issued then it is printed on a printer which is also an output device then this forms the output system of the computer. (See Figure 2.3.6)
To get the solution for a problem, computer has to perform certain actions for example:
Input computer needs data for processing
Processing perform various calculation
Output sends the output to output device
Which is the correct sequence to get the result?
(A) Input-output processing
(B) Outputprocessing input
(C) Inputprocessing Output
(D) Processingoutput input
(C) Computer works on the basis of I-P-O cycle. In this cycle first function is input then processing and finally the output. Therefore, option (C) is correct.
(A) Sequence given in option (A) is incorrect.
(B) Sequence given in option (B) is incorrect.
(D) Sequence given in option (D) is incorrect.
Match the following
1. Storage device i. Plotter
2. Print graphs ii. Software
3. LOGO iii. Floppy disk
(A) 1, iii; 2, i; 3, ii
(B) 1, ii; 2, i; 3, iii
(C) 1, i; 2, ii; 3, iii
(D) 1, iii; 2, ii; 3, i
(A) Option (A) is matched correctly. Floppy disk is a storage device, plotis a print graphs and LOGO is software.
Incorrect Options: (B) Option (B) is matched incorrectly.
(C) Option (C) is matched incorrectly.
(D) Option (D) is matched incorrectly.
I - P - O - Input - Process Output
VDU - Visual Display Unit
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