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BASIC IT: ASSIGNMENT 1
1. What are the type of computer? Explain.
The type of computer are:
a) Personal computer it is a single user computer system having moderating powerful
micro processor.
b) Workstation, it is also a single user computer system similar to personal computer
however has more powerful micro processor
c) Mini computer, it is a multi user computer system capable of supporting hundreds of
user simultaneously
d) main frame, it is a multi user computer system, capable of supporting hundred of users
simultaneously, main frame execute many programs concurrently and supports many
simultaneously execution of programs.
e) Super computer are one of the fastest computers currently available. They are very
expensive and are employed for specialized application that require immense amount of
mathematical calculation, example : scientific, electronic design.
2. What are the characteristics of a computer and elaborate?
a) Speed: typically, a computer can carry out 3 to 4 million instruction for second
b) Accuracy: computers exhibit a very higher degree of accuracy
c) Reliability: computer can carry out some type of work repeatedly without throwing up
errors due to tiredness or boredom
d) Versatility: computers can carry out wide range of work from data entry and ticket
booking to complex mathematical calculation and continuous astronomical observations
e) Storage capacity: computer can store very large amount of data at a fraction of cost of
traditional storage of file.
3. List of the 5 generation computer and devices used for
manufacturing?
First generation (1946-1959)
Manufacturing devices: vacuum tube based
Second generation (1959-1965)
Manufacturing devices: transistor based
Third generation (1965-1971)
Manufacturing devices: integrated circuit based
Fourth generation (1971-1980)
Manufacturing devices: VLSI microprocessor based
Fifth generation (1980 onwards)
Manufacturing devices: ULSI micro processor based
4. List out the limitation of computer?
a) Depends on users input
b) Computers have no imagination
c) Cannot detect error in logic
d) Only expert user can work on it
e) Can not take its own decision
5. Describe the first generation of computer
The computer of first generation used vacuum tubes, has the basic components for memory
and circuits for CPU (central processing unit). Those, tubes like electric bulbs, produced a lot
of heat and the installation use of fuse frequently. They were very expensive and only large
organization were able to afford it. In this generation mainly batch processing operating
system was used. Punch cards, paper tape and magnetic tape was used as input devices.
The computers used machine codes as the programming language.
6.List out the 10 shortcut keys used in word file and their function?
1) CTRL+A selected all contents of the page
2 CTRL +B bold highlighted selection
3) CTRL+C copy selected text
4) CTRL+N open new / blank document window
5 )CTRL+O open option
6) CTRL+P open the print
7) CTRL+F open find box
8) CTRL+H find and replace options
9) CTRL+M intent the paragraph
10)CTRL+K insert link
7 .List out the 10 shortcut key used in browser?
1. Ctrl + D bookmark a page
2. Ctrl + shift +delete open the clear browsing data options
3. Ctrl+ shift + b display or hide the bookmarks bar
4. Alt +f display the browser menu
5. F5 refresh the current page
6. Ctrl +j open the downloads page in a new page
7. Ctrl +shift +o load the bookmarks manager
8. Shift + esc open the browser task manager
9. Ctrl+ shift + n to enter incognito mode
10.Alt + space then N minimize the current window
8. List out the calculation machine, name and their developer name and
year (before first generation)
1 Leibniz
1646-1716
Wilhelm Von Leibniz
2. Abacus
3000B.C
Tim Cranmer
3. Napier’s Bone
1617
John Napier
4. Pascale’s Adding Machine
1642-1644
Blaise Pascal
5. Babbage’s Analytical Engine
1823
Charles Babbage
6. Hollerith’s Machine
1990
Herman Hollerith
9. Describe the second generation of computer?
The period of second generation was from 1959-1965.In this generation, transistors were
used that were cheaper, consumed less power, more compact in size, more reliable and
faster than first generation machines made of vacuum tubes. In this primary memory and
magnetic type and magnetic disks as secondary storage devices.
In this generation, assembly language and high-level programming language like fortran,
cobol were used. The computers used batch processing and multiprogramming
operating system.
10. List out the name of application of computer
a) Business
b) Banking
c) Insurance
d) Education
e) Marketing
F) Healthcare
g) Engineering Design
h) Military
i) Communication
j) Government