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Use Of Computer In Data Processing And Mapping
What are the main advantages of using a computer.
Advantages of using a computer:
(i) The most powerful computer can perform
billions of calculations or arithmetic operations per second.
(ii) In general computer can process numbers, words, still pictures, moving pictures and sounds.
(iii) Computer has become a source of entertainment. You can play games listen to music, watch a video or movie, read a book or magazine or do may more things.
(iv) Communicating in the modem world has become a lot easier with a computer.
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What is the difference between spatial and non-spatial data ? Explain with example.
What is the three forms of geographical data?
Carry out the following steps using
the given data set:
(a) Enter the given data in a file and store in ‘My Documents' folder
(Name the file as rainfall)
(b) Calculate the standard deviation and mean for the given data set using Function Wizard in Excel spreadsheet
(c) Compute coefficient of variation using the results derived in step (6).
(d) Analyse the results.
Represent the data given below using a suitable technique with the help of a computer and analyse the graph.
Cropping Intensity in India
|
yr_80s |
Cl_80s |
yr_90s |
Cl_90s |
|
1980-81 |
123.3 |
1990-91 |
129.9 |
|
1981-82 |
124.5 |
1991-92 |
128.7 |
|
1962-83 |
123.2 |
1992-93 |
130.1 |
|
1983-84 |
125.7 |
1993-94 |
131.1 |
|
1984-85 |
125.2 |
1994-95 |
131.5 |
|
1985-86 |
126.7 |
1995-96 |
131.8 |
|
1986-87 |
126.4 |
1996-97 |
132.8 |
|
1987-88 |
127.3 |
1997-98 |
134.1 |
|
1988-89 |
128.5 |
1998-99 |
135.4 |
|
1989-90 |
128.1 |
1999-00 |
134.9 |
What is a computer?
What are the types of computer?
Name the hardware units of a computer.
What is software?
Name the operations which take place in digital techniques of mapping.
What are the storage devices in a computer?
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