ββ...... πππ....... ββ
π± _ * Android smartphone locked? Do not worry ... use this trick! * _
βͺ A memory card and an extra smartphone are required if you forget the smartphone's password or password. Insert this memory card into another smartphone.
βͺ Download Aroma File Manager from this smartphone later, move it to the application memory card, then insert this memory card into your locked smartphone.
βͺ Open Recovery Mode by pressing the power key and Volume up key of your locked smartphone simultaneously. (The Key Combination of each phone is different to open Recovery Mode.)
βͺ After switching to this Recovery Mode, select Install Zip from SD Card, then select Install Zip from SD Card, then select the path of the Aroma File Manager from the SD card and install it.
βͺ Once the Aroma File Manager application is installed, it will be re-opened in Recovery mode.
βͺ Go to Settings from this Aroma File Manager, in which you will see the option Automount all devices on start. Click on this option and exit.
βͺ Re-Install Zip from SD Card, select the Install Zip from SD Card option and select the path of the Aroma File Manager from the SD card and install it. Once the Aroma File Manager application is installed, it will be re-opened in Recovery Mode.
Now go to the System Folder option in the "Data Folder" option, delete any of the gesture.key or password.key, and reboot your smartphone after exit.
βͺ After reboot, your smartphone will start and enter a new pattern lock or password, your Android smartphone will start.
π± _ * Android smartphone locked? Do not worry ... use this trick! * _
βͺ A memory card and an extra smartphone are required if you forget the smartphone's password or password. Insert this memory card into another smartphone.
βͺ Download Aroma File Manager from this smartphone later, move it to the application memory card, then insert this memory card into your locked smartphone.
βͺ Open Recovery Mode by pressing the power key and Volume up key of your locked smartphone simultaneously. (The Key Combination of each phone is different to open Recovery Mode.)
βͺ After switching to this Recovery Mode, select Install Zip from SD Card, then select Install Zip from SD Card, then select the path of the Aroma File Manager from the SD card and install it.
βͺ Once the Aroma File Manager application is installed, it will be re-opened in Recovery mode.
βͺ Go to Settings from this Aroma File Manager, in which you will see the option Automount all devices on start. Click on this option and exit.
βͺ Re-Install Zip from SD Card, select the Install Zip from SD Card option and select the path of the Aroma File Manager from the SD card and install it. Once the Aroma File Manager application is installed, it will be re-opened in Recovery Mode.
Now go to the System Folder option in the "Data Folder" option, delete any of the gesture.key or password.key, and reboot your smartphone after exit.
βͺ After reboot, your smartphone will start and enter a new pattern lock or password, your Android smartphone will start.
ββ...... πππ...... ββ
Different types of Computer Port?
Port:- Port is a connecting socket outside the system into which different type of cables are plugged. It is place
where device are physically connected. There are many type of ports used in computer system. These ports are:-
π Serial Port
π Parallel Port
π USB Port (Universal serial bus)
π SCSI Port (Small Computer system Interface).
πο· Serial Port:- Serial port transmits one bit of a byte, one at a time as a single stream of bits. It is used for
transmitting slow data over long distances. E.g Dialup modem, serial mice use serial ports.
πο· Parallel Port:- A Parallel port transmit 8 bit of byte of data in parallel. It is used for transmitting fast data
over short distances. It is used to connect printer, monitor, projector etc.
πο· USB Port:- A USB port can connect up to 127 peripheral devices such as a mouse, digital camera, scanners,
speakers etc. It also permit to connect plug and play device.
πο· Small computer System Interface (SCSI Port):- SCSI port allows data to be transmitted in a daisy chain to
up to 7 devices at a higher speed (32 bit at a time). It is fast data transmitting device is used to connect HDD
(Hard disk drive, CD-ROM drives etc with the computer.
Different types of Computer Port?
Port:- Port is a connecting socket outside the system into which different type of cables are plugged. It is place
where device are physically connected. There are many type of ports used in computer system. These ports are:-
π Serial Port
π Parallel Port
π USB Port (Universal serial bus)
π SCSI Port (Small Computer system Interface).
πο· Serial Port:- Serial port transmits one bit of a byte, one at a time as a single stream of bits. It is used for
transmitting slow data over long distances. E.g Dialup modem, serial mice use serial ports.
πο· Parallel Port:- A Parallel port transmit 8 bit of byte of data in parallel. It is used for transmitting fast data
over short distances. It is used to connect printer, monitor, projector etc.
πο· USB Port:- A USB port can connect up to 127 peripheral devices such as a mouse, digital camera, scanners,
speakers etc. It also permit to connect plug and play device.
πο· Small computer System Interface (SCSI Port):- SCSI port allows data to be transmitted in a daisy chain to
up to 7 devices at a higher speed (32 bit at a time). It is fast data transmitting device is used to connect HDD
(Hard disk drive, CD-ROM drives etc with the computer.
1) An email feature, which is used to send a copy of an email to one or many other people at the same time that you are sending it to the main recipient/s is called
A.) CC
B.) BCC
C.) To
D.) None of these
Answer: Option 'A'
A.) CC
B.) BCC
C.) To
D.) None of these
Answer: Option 'A'
ββ...... πππ...... ββ
2) A dynamic website that is Ragini Mms Returns 2 database driven and which enables the owner/user to manage the content of their own website without needing to know any coding at all is known as _
A.) Content Management System (CMS)
B.) ASP
C.) DNS
D.) None of these
Show Answer
Answer: Option 'A'**
2) A dynamic website that is Ragini Mms Returns 2 database driven and which enables the owner/user to manage the content of their own website without needing to know any coding at all is known as _
A.) Content Management System (CMS)
B.) ASP
C.) DNS
D.) None of these
Show Answer
Answer: Option 'A'**
ββ...... πππ...... ββ
3)The process of analyzing large data sets in search of new, previously undiscovered relationships is known as __
A.) data mining
B.) data marting
C.) data maintenance
D.) data warehousing
Show Answer
Answer: Option 'A'
3)The process of analyzing large data sets in search of new, previously undiscovered relationships is known as __
A.) data mining
B.) data marting
C.) data maintenance
D.) data warehousing
Show Answer
Answer: Option 'A'
ββ...... πππ...... ββ
4)A repository of data that is designed to serve a particular community of knowledge workers is called _____
A.) data mart
B.) data warehousing
C.) data maintenance
D.) None of these
Show Answer
Answer: Option 'A'
4)A repository of data that is designed to serve a particular community of knowledge workers is called _____
A.) data mart
B.) data warehousing
C.) data maintenance
D.) None of these
Show Answer
Answer: Option 'A'
1).A graph prepared by a computer
A. is the piece of information to use
B. is a hard copy
C. is its output
D. all of the above
Ans. D
A. is the piece of information to use
B. is a hard copy
C. is its output
D. all of the above
Ans. D
1.UNIVAC is
a. Universal Automatic Computer
b. Universal Array Computer
c. Unique Automatic Computer
d. Unvalued Automatic Computer
2. CD-ROM stands for
a. Compactable Read Only Memory
b. Compact Data Read Only Memory
c. Compactable Disk Read Only Memory
d. Compact Disk Read Only Memory
3. ALU is
a. Arithmetic Logic Unit
b. Array Logic Unit
c. Application Logic Unit
d. None of above
4. VGA is
a. Video Graphics Array
b. Visual Graphics Array
c. Volatile Graphics Array
d. Video Graphics Adapter
5. IBM 1401 is
a. First Generation Computer
b. Second Generation Computer
c. Third Generation Computer
d. Fourth Generation Computer
6. MSI stands for
a. Medium Scale Integrated Circuits
b. Medium System Integrated Circuits
c. Medium Scale Intelligent Circuit
d. Medium System Intelligent Circuit
7. The capacity of 3.5 inch floppy disk is
a. 1.40 MB
b. 1.44 GB
c. 1.40 GB
d. 1.44 MB
8. The first computer introduced in Nepal was
a. IBM 1400
b. IBM 1401
c. IBM 1402
d. IBM1402
9. WAN stands for
a. Wap Area Network
b. Wide Area Network
c. Wide Array Net
d. Wireless Area Network
10. MICR stands for
a. Magnetic Ink Character Reader
b. Magnetic Ink Code Reader
c. Magnetic Ink Cases Reader
d. None
ππππππππππ
Answers
1. UNIVAC is
Correct Answer: a. Universal Automatic Computer
Explanation: There are no computers with the name as in other options. UNIVAC was the first general purpose electronic digital computer designed for commercial use, produced by Universal Accounting Company of John Mauchly and J.P.Eckert in 1951.
2. CD-ROM stands for
Correct Answer: d. Compact Disk Read Only Memory
Explanation: There are no objects with the name as in other options. CD-ROM is a non-volatile optical data storage medium using the same physical format as audio compact disk, readable by a computer with a CD-ROM drive. The standard 12 cm diameter CD-ROM store about 660 megabytes.
3. ALU is
Correct Answer: a. Arithmetic Logic Unit
Explanation: ALU is a unit in Central Processing Unit in a computer system that is responsible for arithmetic calculations and logical operations. Apart from ALU, the CPU contains MU (Memory Unit) and CU (Control Unit).
4. VGA is
Correct Answer: a. Video Graphics Array
Explanation: VGA is a type of Graphics Adapter. Graphic Adapter is an electronic board that controls the display of a monitor. This device helps the motherboard to work with the monitor and in VGA and SVGA the last letter βAβ stands for βArrayβ whereas in MDA, CGA, MCGA the last letter βAβ stands for βAdapterβ.
5. IBM 1401 is
Correct Answer: b. Second Generation Computer
Explanation: IBM 1401 is a Second Generation Computer and is the first computer to enter Nepal in 2028 BS for census. Government of Nepal had brought this computer on rent and later purchased for data processing in Bureau of Statistics. After this computer, another ICL 2950/10, a British computer, was purchased by the fund of UNDP and UNFPA for the census of 2038 BS is second computer in Nepal.
6. MSI stands for
Correct Answer: a. Medium Scale Integrated Circuits
Explanation: After the invention of IC chips the development of computers plunged into next phase. Small Scale Integration and Medium Scale Integration (SSI and MSI) were used in third generation of computers and Large Scale Integration and Very Large Scale Integration (LSI and VLSI) are being used in fourth generation of computers. People are now expecting ULSI (Ultra Large Scale Integration) Circuits to be used for fifth generation computers.
7. The capacity of 3.5 inch floppy disk is
Correct Answer: d. 1.44 MB
Explanation: Microfloppy disks (3.5 inch) if it is high density (MF2HD) can store 1.44 MB and if it is low density (MF2DD), it can store 720 KB. Mini Floppy disks (5.25 inch) if it is high density (MD2HD) can store 1.2 MB and low density (MD2DD) stores 360 KB of data.
8. The first computer introduced in Nepal was
Correct Answer: b. IBM 1401
Explanation: IBM 1401, a second generation computer was brought in Nepal by
1. Who invented Compact Disc?
Ans : James T Russel
2. Which day is celebrated as world Computer Literacy Day?
Ans : December 2
3. Who invented Java?
Ans : James A Gosling
4. Longhorn was the code name of ?
Ans : Windows Vista
5. Who is known as the Human Computer of India?
Ans : Shakunthala Devi
6. What is mean by Liveware?
Ans : People who work with the computer
7. Which computer engineer got Nobel Prize for literature in 2003?
J.M. Coetzee
8. 'Weaving The Web' was written by.....
Ans : Tim Burners Lee
9. What is Beta Test?
Ans : Trial test of a computer or software before the commercial launch
10. 'Do no evil' is tag line of ......
Ans : Google
11. First Indian cinema released through internet is .....
Ans : Vivah
12. Rediff.com was founded by.....
Ans : Ajith Balakrishnan and Manish Agarwal
13. What is the extension of PDF?
Ans : Portable document format
14. Mows is a type of mouse for ........ people
Ans : Physically handicapped people
15. Expand RDBMS?
Ans : Relational Data Base Management System
16. Difference engine was developed by.....
Ans : Charles Babbage
17. Orkut.com is now owned by ......
Ans : Google
18. World's first microprocessor is .....
Ans : Intel 4004
19. What is SQL?
Ans : Structured Query Language
20. What is the expansion of COBOL?
Ans : Common Business Oriented Language
21. What is the expansion of SMS?
Ans : Short Message Service
22. Which IT company's nickname is ' The Big Blue ' ?
Ans : IBM
23. What is the full form of IEEE?
Ans : Institute of Electric and Electronic Engineers
24. Who developed COBOL?
Ans : Grace Murry Hopper
25. Email was developed by......
Ans : Raymond Samuel Tomlinson (Ray Tomlinson)
26. Green dam is ......
Ans : Web Filter
27. What is the expanded form of CMOS ?
Ans : Complementary Metal Oxide Semoconductor
28. Who is Netizen ?
Ans : Net Citizen (Citizen who uses internet)
29. What is Scareware?
Ans : Fake antivirus softwares
30. When was the first smart phone launched?
Ans : 1992 (IBM Simon)
Computer GK : Computer Questions and Answers
1. Which Penguin is the mascot of Linux Operating system?
Ans : TUX
2. i pad is manufactured by
Ans : Apple
3. Which IT company got name from Sanfrancisco?
Ans : CISCO
4. "Connecting people" is the tagline of ....
Ans : Nokia
5. What is IMEI?
Ans : International Mobile Equipment Identity.
6. What is e-zine?
Ans : Electronic Magazines.
7. What is the expansion of ASCII?
Ans : American Standard Code for Information Interchange.
8. Who developed first portable computer?
Ans : Adam Osborne
9. What is NIC?
Ans : Network Interface Card
10. Whose motto is "wisdom of mass principle?
Ans : Wikipedia
11. Who is the father of computer ethics?
Ans : Norbetweiner.
12. Which Indian state implemented 'Cyber Grameen' ?
Ans : Andhra Pradesh
13. What is a blog?
Ans : Online journals and diaries.
14. What is NISG?
Ans : National Institute of Smart Governance
15. Tic-Tac-Toe is .....
Ans : 1st graphical game
16. "Oruma" is Linux based software development by?
Ans : Kerala State Electricity Board.
17. ABC (computer) was developed by ?
Ans : Atanasoff Berry (ABC means Atanasoff Berry Computer)
18. GPS was developed by?
Ans : US Army
19. Expand SUN in sun Micrsystem.
Ans : Stanford University Network
20. 'Being digital' is a famous book written by ?
Ans : Nicholars Negroponte.
21. What is Blue Brain project?
Ans : Cloning of human brain.
22. Which famous web site was found by Jeffry Bezos?
Ans : Amazon.com
23. What is Cyber bulling?
Ans : Threatening through internet
24. Cyber-check is software developed by .....
C-DAC
25. What is pod slumping?
Ans : Information theft by portable devices.
26. In which year the first legalized personal computer sold in Cuba?
Ans : 2008(May)
27. What is three finger salutes?
Ans : Pressing Ctrl + Alt + Del
28. In which year Microsoft Office was launched?
Ans : 1989
29. What is meant by Mouse potato?
Ans : It means a person who spends too much time in front of a computer.
30. Who wrote 'Just for fun' ?
Ans : Linus Torvalds. ( Just for Fun : The Story of an Accidental Revolutionary is a humorous autobiography of Linus Torvalds, the creator of the Linux kernel)
1. Which Penguin is the mascot of Linux Operating system?
Ans : TUX
2. i pad is manufactured by
Ans : Apple
3. Which IT company got name from Sanfrancisco?
Ans : CISCO
4. "Connecting people" is the tagline of ....
Ans : Nokia
5. What is IMEI?
Ans : International Mobile Equipment Identity.
6. What is e-zine?
Ans : Electronic Magazines.
7. What is the expansion of ASCII?
Ans : American Standard Code for Information Interchange.
8. Who developed first portable computer?
Ans : Adam Osborne
9. What is NIC?
Ans : Network Interface Card
10. Whose motto is "wisdom of mass principle?
Ans : Wikipedia
11. Who is the father of computer ethics?
Ans : Norbetweiner.
12. Which Indian state implemented 'Cyber Grameen' ?
Ans : Andhra Pradesh
13. What is a blog?
Ans : Online journals and diaries.
14. What is NISG?
Ans : National Institute of Smart Governance
15. Tic-Tac-Toe is .....
Ans : 1st graphical game
16. "Oruma" is Linux based software development by?
Ans : Kerala State Electricity Board.
17. ABC (computer) was developed by ?
Ans : Atanasoff Berry (ABC means Atanasoff Berry Computer)
18. GPS was developed by?
Ans : US Army
19. Expand SUN in sun Micrsystem.
Ans : Stanford University Network
20. 'Being digital' is a famous book written by ?
Ans : Nicholars Negroponte.
21. What is Blue Brain project?
Ans : Cloning of human brain.
22. Which famous web site was found by Jeffry Bezos?
Ans : Amazon.com
23. What is Cyber bulling?
Ans : Threatening through internet
24. Cyber-check is software developed by .....
C-DAC
25. What is pod slumping?
Ans : Information theft by portable devices.
26. In which year the first legalized personal computer sold in Cuba?
Ans : 2008(May)
27. What is three finger salutes?
Ans : Pressing Ctrl + Alt + Del
28. In which year Microsoft Office was launched?
Ans : 1989
29. What is meant by Mouse potato?
Ans : It means a person who spends too much time in front of a computer.
30. Who wrote 'Just for fun' ?
Ans : Linus Torvalds. ( Just for Fun : The Story of an Accidental Revolutionary is a humorous autobiography of Linus Torvalds, the creator of the Linux kernel)
SECI - Solar Energy Corporation of India
CIIL- Central Institute of Indian Languages
PMIS- Project Management & Information System
CIL - Coal India Limited
MWCD - Ministry of Women & Child Development
IWMS - Integrated Waste Management System
AIRF - All India Railwaymenβs Federation
ITBA- Income Tax Business Application
NEET - National Eligibility cum Entrance Test
NDAA - National Defence Authorization Act
FTII - Films & Television Institute of India
BCAS - Bureau of Civil Aviation Security
NPCC - National Projects Construction Corporation Ltd.
FRBM - Fiscal Responsibilty& Budget Management
SWF - Sovereign Wealth Fund
NIIF - National Infrastructure & Investment Fund
OPIC - Overseas Private Investment Corporation
SATF - South African Tamil Federation
CHF - Chemical Heritage Foundation
NIVH - National Institute for the Visually Handicapped
RISE - Rashtriya Institute of Skill & Education
List of Computer Hardware with Their Inventors
πKeyboard:- Herman Hollerith(1930's)
πTransistor:-John Bardeen,Walter Brattain and Wiliam Shockley(1947-1948)
πRAM:-An Wang and Jay Forrester(1951)
πTrackball:-Tom Cranston and Fred Longstaff(1952)
πHard Disk:- IBM ,The IBM model 350 Disk file(1956)
πIntegrated Circuit :- Jack Kilby and Robert Noyce(1958)
πScanner :- Rudolph Hell in germany(1963)
πMouse:-Douglas Engelbart(1964)
πCD-ROM :-James Russell(1965)
πLaser Printer:-Gray Starkweather at XEROX in 1969
πFloppy Disk :- Alan Shugart and IBM (1970)
πMicroprocessor:-Faggin Hoff and Mazor-INTEL4004(1971)
πKeyboard:- Herman Hollerith(1930's)
πTransistor:-John Bardeen,Walter Brattain and Wiliam Shockley(1947-1948)
πRAM:-An Wang and Jay Forrester(1951)
πTrackball:-Tom Cranston and Fred Longstaff(1952)
πHard Disk:- IBM ,The IBM model 350 Disk file(1956)
πIntegrated Circuit :- Jack Kilby and Robert Noyce(1958)
πScanner :- Rudolph Hell in germany(1963)
πMouse:-Douglas Engelbart(1964)
πCD-ROM :-James Russell(1965)
πLaser Printer:-Gray Starkweather at XEROX in 1969
πFloppy Disk :- Alan Shugart and IBM (1970)
πMicroprocessor:-Faggin Hoff and Mazor-INTEL4004(1971)
The Great Inventors in Computer Field
------------------------------------------------------------------------------------------------------
Charles Babbage: The Analytical Engine(1822)
Alan Turing: The Turing Machine
The English mathematician and computer scientist- provided a platform for formulating the basic concept of algorithm and destined the Turing machine, that was able to test the intelligence of a machine.
Konrad Zuse: The Z Series Computers
The German engineer, Konrad Zuse, in 1936, invented the first electrical binary programmable computer - the Z1. Z2 and Z3 were also introduced by Zuse in 1939 and 1941 respectively.
John Vincent Atanasoff & Clifford Berry: Atanasoff-Berry Computer (ABC)
Developed in the war phase of 1942, Atanasoff-Berry Computer (ABC) was the world's first fully electronic digital computer.
The US Army: ENIAC -Financed by the US army and developed by scientists John Presper Eckert & John W. Mauchly, in 1946, the Electronic Numerical Integrator and Computer (ENIAC) is considered to be the first mainstream digital computer ever made.
Father of the personal computer - Henry Edward Roberts released Altair 8800 on December 19, 1974
The first laptop or portable computer - IBM 5100 (1975)
The first Apple computer - Steve Wozniak designed the first Apple known as the Apple I (1976)
Inventors in computer programming and development
Dennis Ritchie : He created the C programming language
Brian Kernighan : contributed to the development of Unix, He is also coauthor of the AWK and AMPL programming languages.
Bjarne Stroustrup : developed C++ programming language.
Niklaus Wirth : developed PASCAL programming language
James Gosling : Father of the Java programming language.
Larry Wall : Developed Perl programming language in 1987.
Guido van Rossum : Author of the Python programming language.
Richard Matthew Stallman : foundi Free Software Foundation, developing the GNU Compiler Collection and GNU Emacs, and writing the GNU General Public License.
Bill Joy: co-founder of Sun Microsystems in 1982 along with Vinod Khosla, Scott McNealy and Andy Bechtolsheim.
Philippe Kahn : who is credited with creating the first camera phone sharing pictures instantly on public networks.
Important founders in the field of Computer Technology
Paul Allen : Co-founder of Microsoft Corporation along with Bill Gates, a leading developer of personal-computer software systems and applications.
Bill Gates : William Henry "Bill" Gates III is an American business magnate and philanthropist. Gates is the former chief executive and current chairman of Microsoft, the worldβs largest personal-computer software company, which he co-founded with Paul Allen.
Larry Ellison : Lawrence Joseph "Larry" Ellison is an American business magnate, co-founder and chief executive of Oracle Corporation, one of the world's leading enterprise software companies.
Larry Page : Lawrence "Larry" Page is an American computer scientist and internet entrepreneur who, with Sergey Brin, is best known as the co-founder of Google. On April 4, 2011, he took on the role of chief executive officer of Google, replacing Eric Schmidt.
Sergey Brin : Sergey Mikhaylovich Brin is a Soviet-born American computer scientist and Internet entrepreneur who, with Larry Page, co-founded Google, one of the most profitable Internet companies. As of 2012, his personal wealth is estimated to be $20.3 billion.
Steve Jobs : Steven Paul "Steve" Jobs was an American entrepreneur. He is best known as the co-founder, chairman, and chief executive officer of Apple Inc
Robert Taylor :Robert William Taylor, known as Bob Taylor, is an Internet pioneer, who led teams that made major contributions to the personal computer, and other related technologies.
Paul Baran : Paul Baran was a Polish American engineer who was a pioneer in the development of computer networks
Vint Cerf : Vinton Gray "Vint" Cerf is an American computer scientist, who is recogni
------------------------------------------------------------------------------------------------------
Charles Babbage: The Analytical Engine(1822)
Alan Turing: The Turing Machine
The English mathematician and computer scientist- provided a platform for formulating the basic concept of algorithm and destined the Turing machine, that was able to test the intelligence of a machine.
Konrad Zuse: The Z Series Computers
The German engineer, Konrad Zuse, in 1936, invented the first electrical binary programmable computer - the Z1. Z2 and Z3 were also introduced by Zuse in 1939 and 1941 respectively.
John Vincent Atanasoff & Clifford Berry: Atanasoff-Berry Computer (ABC)
Developed in the war phase of 1942, Atanasoff-Berry Computer (ABC) was the world's first fully electronic digital computer.
The US Army: ENIAC -Financed by the US army and developed by scientists John Presper Eckert & John W. Mauchly, in 1946, the Electronic Numerical Integrator and Computer (ENIAC) is considered to be the first mainstream digital computer ever made.
Father of the personal computer - Henry Edward Roberts released Altair 8800 on December 19, 1974
The first laptop or portable computer - IBM 5100 (1975)
The first Apple computer - Steve Wozniak designed the first Apple known as the Apple I (1976)
Inventors in computer programming and development
Dennis Ritchie : He created the C programming language
Brian Kernighan : contributed to the development of Unix, He is also coauthor of the AWK and AMPL programming languages.
Bjarne Stroustrup : developed C++ programming language.
Niklaus Wirth : developed PASCAL programming language
James Gosling : Father of the Java programming language.
Larry Wall : Developed Perl programming language in 1987.
Guido van Rossum : Author of the Python programming language.
Richard Matthew Stallman : foundi Free Software Foundation, developing the GNU Compiler Collection and GNU Emacs, and writing the GNU General Public License.
Bill Joy: co-founder of Sun Microsystems in 1982 along with Vinod Khosla, Scott McNealy and Andy Bechtolsheim.
Philippe Kahn : who is credited with creating the first camera phone sharing pictures instantly on public networks.
Important founders in the field of Computer Technology
Paul Allen : Co-founder of Microsoft Corporation along with Bill Gates, a leading developer of personal-computer software systems and applications.
Bill Gates : William Henry "Bill" Gates III is an American business magnate and philanthropist. Gates is the former chief executive and current chairman of Microsoft, the worldβs largest personal-computer software company, which he co-founded with Paul Allen.
Larry Ellison : Lawrence Joseph "Larry" Ellison is an American business magnate, co-founder and chief executive of Oracle Corporation, one of the world's leading enterprise software companies.
Larry Page : Lawrence "Larry" Page is an American computer scientist and internet entrepreneur who, with Sergey Brin, is best known as the co-founder of Google. On April 4, 2011, he took on the role of chief executive officer of Google, replacing Eric Schmidt.
Sergey Brin : Sergey Mikhaylovich Brin is a Soviet-born American computer scientist and Internet entrepreneur who, with Larry Page, co-founded Google, one of the most profitable Internet companies. As of 2012, his personal wealth is estimated to be $20.3 billion.
Steve Jobs : Steven Paul "Steve" Jobs was an American entrepreneur. He is best known as the co-founder, chairman, and chief executive officer of Apple Inc
Robert Taylor :Robert William Taylor, known as Bob Taylor, is an Internet pioneer, who led teams that made major contributions to the personal computer, and other related technologies.
Paul Baran : Paul Baran was a Polish American engineer who was a pioneer in the development of computer networks
Vint Cerf : Vinton Gray "Vint" Cerf is an American computer scientist, who is recogni
zed as one of "the fathers of the Internet", sharing this title with American computer scientist Bob Kahn.
Robert E. Kahn : Robert Elliot "Bob" Kahn is an American Internet pioneer, engineer and computer scientist, who, along with Vinton G. Cerf, invented the Transmission Control Protocol and the Internet Protocol.
Inventors of Computer Hardware
(1) Key board β Herman Hollerith, first keypunch device in 1930βs
(2) Transistor β John Bardeen, Walter Brattain & Wiliam Shockley (1947 - 1948)
(3) RAM β An Wang and Jay Forrester (1951)
(4) Trackball β Tom Cranston and Fred Longstaff (1952)
(5) Hard Disk β IBM , The IBM Model 350 Disk File (1956 )
(6) Integrated Circuitβ Jack Kilby & Robert Noyce (1958)
(7) Computer Mouse β Douglas Engelbart (1964)
(8) Laser printerβ Gary Stark weather at XEROX in (1969)
(9) Floppy Diskβ Alan Shugart & IBM( 1970)
(10) Microprocessor β Faggin, Hoff&Mazor β Intel 4004
Robert E. Kahn : Robert Elliot "Bob" Kahn is an American Internet pioneer, engineer and computer scientist, who, along with Vinton G. Cerf, invented the Transmission Control Protocol and the Internet Protocol.
Inventors of Computer Hardware
(1) Key board β Herman Hollerith, first keypunch device in 1930βs
(2) Transistor β John Bardeen, Walter Brattain & Wiliam Shockley (1947 - 1948)
(3) RAM β An Wang and Jay Forrester (1951)
(4) Trackball β Tom Cranston and Fred Longstaff (1952)
(5) Hard Disk β IBM , The IBM Model 350 Disk File (1956 )
(6) Integrated Circuitβ Jack Kilby & Robert Noyce (1958)
(7) Computer Mouse β Douglas Engelbart (1964)
(8) Laser printerβ Gary Stark weather at XEROX in (1969)
(9) Floppy Diskβ Alan Shugart & IBM( 1970)
(10) Microprocessor β Faggin, Hoff&Mazor β Intel 4004
List of Computer Hardware with Their Inventors
πKeyboard:- Herman Hollerith(1930's)
πTransistor:-John Bardeen,Walter Brattain and Wiliam Shockley(1947-1948)
πRAM:-An Wang and Jay Forrester(1951)
πTrackball:-Tom Cranston and Fred Longstaff(1952)
πHard Disk:- IBM ,The IBM model 350 Disk file(1956)
πIntegrated Circuit :- Jack Kilby and Robert Noyce(1958)
πScanner :- Rudolph Hell in germany(1963)
πMouse:-Douglas Engelbart(1964)
πCD-ROM :-James Russell(1965)
πLaser Printer:-Gray Starkweather at XEROX in 1969
πFloppy Disk :- Alan Shugart and IBM (1970)
πMicroprocessor:-Faggin Hoff and Mazor-INTEL4004(1971)
πKeyboard:- Herman Hollerith(1930's)
πTransistor:-John Bardeen,Walter Brattain and Wiliam Shockley(1947-1948)
πRAM:-An Wang and Jay Forrester(1951)
πTrackball:-Tom Cranston and Fred Longstaff(1952)
πHard Disk:- IBM ,The IBM model 350 Disk file(1956)
πIntegrated Circuit :- Jack Kilby and Robert Noyce(1958)
πScanner :- Rudolph Hell in germany(1963)
πMouse:-Douglas Engelbart(1964)
πCD-ROM :-James Russell(1965)
πLaser Printer:-Gray Starkweather at XEROX in 1969
πFloppy Disk :- Alan Shugart and IBM (1970)
πMicroprocessor:-Faggin Hoff and Mazor-INTEL4004(1971)
Computer GK : Computer Questions and Answers
1. Which Penguin is the mascot of Linux Operating system?
Ans : TUX
2. i pad is manufactured by
Ans : Apple
3. Which IT company got name from Sanfrancisco?
Ans : CISCO
4. "Connecting people" is the tagline of ....
Ans : Nokia
5. What is IMEI?
Ans : International Mobile Equipment Identity.
6. What is e-zine?
Ans : Electronic Magazines.
7. What is the expansion of ASCII?
Ans : American Standard Code for Information Interchange.
8. Who developed first portable computer?
Ans : Adam Osborne
9. What is NIC?
Ans : Network Interface Card
10. Whose motto is "wisdom of mass principle?
Ans : Wikipedia
11. Who is the father of computer ethics?
Ans : Norbetweiner.
12. Which Indian state implemented 'Cyber Grameen' ?
Ans : Andhra Pradesh
13. What is a blog?
Ans : Online journals and diaries.
14. What is NISG?
Ans : National Institute of Smart Governance
15. Tic-Tac-Toe is .....
Ans : 1st graphical game
16. "Oruma" is Linux based software development by?
Ans : Kerala State Electricity Board.
17. ABC (computer) was developed by ?
Ans : Atanasoff Berry (ABC means Atanasoff Berry Computer)
18. GPS was developed by?
Ans : US Army
19. Expand SUN in sun Micrsystem.
Ans : Stanford University Network
20. 'Being digital' is a famous book written by ?
Ans : Nicholars Negroponte.
21. What is Blue Brain project?
Ans : Cloning of human brain.
22. Which famous web site was found by Jeffry Bezos?
Ans : Amazon.com
23. What is Cyber bulling?
Ans : Threatening through internet
24. Cyber-check is software developed by .....
C-DAC
25. What is pod slumping?
Ans : Information theft by portable devices.
26. In which year the first legalized personal computer sold in Cuba?
Ans : 2008(May)
27. What is three finger salutes?
Ans : Pressing Ctrl + Alt + Del
28. In which year Microsoft Office was launched?
Ans : 1989
29. What is meant by Mouse potato?
Ans : It means a person who spends too much time in front of a computer.
30. Who wrote 'Just for fun' ?
Ans : Linus Torvalds. ( Just for Fun : The Story of an Accidental Revolutionary is a humorous autobiography of Linus Torvalds, the creator of the Linux kernel)
1. Which Penguin is the mascot of Linux Operating system?
Ans : TUX
2. i pad is manufactured by
Ans : Apple
3. Which IT company got name from Sanfrancisco?
Ans : CISCO
4. "Connecting people" is the tagline of ....
Ans : Nokia
5. What is IMEI?
Ans : International Mobile Equipment Identity.
6. What is e-zine?
Ans : Electronic Magazines.
7. What is the expansion of ASCII?
Ans : American Standard Code for Information Interchange.
8. Who developed first portable computer?
Ans : Adam Osborne
9. What is NIC?
Ans : Network Interface Card
10. Whose motto is "wisdom of mass principle?
Ans : Wikipedia
11. Who is the father of computer ethics?
Ans : Norbetweiner.
12. Which Indian state implemented 'Cyber Grameen' ?
Ans : Andhra Pradesh
13. What is a blog?
Ans : Online journals and diaries.
14. What is NISG?
Ans : National Institute of Smart Governance
15. Tic-Tac-Toe is .....
Ans : 1st graphical game
16. "Oruma" is Linux based software development by?
Ans : Kerala State Electricity Board.
17. ABC (computer) was developed by ?
Ans : Atanasoff Berry (ABC means Atanasoff Berry Computer)
18. GPS was developed by?
Ans : US Army
19. Expand SUN in sun Micrsystem.
Ans : Stanford University Network
20. 'Being digital' is a famous book written by ?
Ans : Nicholars Negroponte.
21. What is Blue Brain project?
Ans : Cloning of human brain.
22. Which famous web site was found by Jeffry Bezos?
Ans : Amazon.com
23. What is Cyber bulling?
Ans : Threatening through internet
24. Cyber-check is software developed by .....
C-DAC
25. What is pod slumping?
Ans : Information theft by portable devices.
26. In which year the first legalized personal computer sold in Cuba?
Ans : 2008(May)
27. What is three finger salutes?
Ans : Pressing Ctrl + Alt + Del
28. In which year Microsoft Office was launched?
Ans : 1989
29. What is meant by Mouse potato?
Ans : It means a person who spends too much time in front of a computer.
30. Who wrote 'Just for fun' ?
Ans : Linus Torvalds. ( Just for Fun : The Story of an Accidental Revolutionary is a humorous autobiography of Linus Torvalds, the creator of the Linux kernel)
Biggest Computer Knowledge pinned Β«Computer GK : Computer Questions and Answers 1. Which Penguin is the mascot of Linux Operating system? Ans : TUX 2. i pad is manufactured by Ans : Apple 3. Which IT company got name from Sanfrancisco? Ans : CISCO 4. "Connecting people" is the taglineβ¦Β»
1.UNIVAC is
a. Universal Automatic Computer
b. Universal Array Computer
c. Unique Automatic Computer
d. Unvalued Automatic Computer
2. CD-ROM stands for
a. Compactable Read Only Memory
b. Compact Data Read Only Memory
c. Compactable Disk Read Only Memory
d. Compact Disk Read Only Memory
3. ALU is
a. Arithmetic Logic Unit
b. Array Logic Unit
c. Application Logic Unit
d. None of above
4. VGA is
a. Video Graphics Array
b. Visual Graphics Array
c. Volatile Graphics Array
d. Video Graphics Adapter
5. IBM 1401 is
a. First Generation Computer
b. Second Generation Computer
c. Third Generation Computer
d. Fourth Generation Computer
6. MSI stands for
a. Medium Scale Integrated Circuits
b. Medium System Integrated Circuits
c. Medium Scale Intelligent Circuit
d. Medium System Intelligent Circuit
7. The capacity of 3.5 inch floppy disk is
a. 1.40 MB
b. 1.44 GB
c. 1.40 GB
d. 1.44 MB
8. The first computer introduced in Nepal was
a. IBM 1400
b. IBM 1401
c. IBM 1402
d. IBM1402
9. WAN stands for
a. Wap Area Network
b. Wide Area Network
c. Wide Array Net
d. Wireless Area Network
10. MICR stands for
a. Magnetic Ink Character Reader
b. Magnetic Ink Code Reader
c. Magnetic Ink Cases Reader
d. None
ππππππππππ
Answers
1. UNIVAC is
Correct Answer: a. Universal Automatic Computer
Explanation: There are no computers with the name as in other options. UNIVAC was the first general purpose electronic digital computer designed for commercial use, produced by Universal Accounting Company of John Mauchly and J.P.Eckert in 1951.
2. CD-ROM stands for
Correct Answer: d. Compact Disk Read Only Memory
Explanation: There are no objects with the name as in other options. CD-ROM is a non-volatile optical data storage medium using the same physical format as audio compact disk, readable by a computer with a CD-ROM drive. The standard 12 cm diameter CD-ROM store about 660 megabytes.
3. ALU is
Correct Answer: a. Arithmetic Logic Unit
Explanation: ALU is a unit in Central Processing Unit in a computer system that is responsible for arithmetic calculations and logical operations. Apart from ALU, the CPU contains MU (Memory Unit) and CU (Control Unit).
4. VGA is
Correct Answer: a. Video Graphics Array
Explanation: VGA is a type of Graphics Adapter. Graphic Adapter is an electronic board that controls the display of a monitor. This device helps the motherboard to work with the monitor and in VGA and SVGA the last letter βAβ stands for βArrayβ whereas in MDA, CGA, MCGA the last letter βAβ stands for βAdapterβ.
5. IBM 1401 is
Correct Answer: b. Second Generation Computer
Explanation: IBM 1401 is a Second Generation Computer and is the first computer to enter Nepal in 2028 BS for census. Government of Nepal had brought this computer on rent and later purchased for data processing in Bureau of Statistics. After this computer, another ICL 2950/10, a British computer, was purchased by the fund of UNDP and UNFPA for the census of 2038 BS is second computer in Nepal.
6. MSI stands for
Correct Answer: a. Medium Scale Integrated Circuits
Explanation: After the invention of IC chips the development of computers plunged into next phase. Small Scale Integration and Medium Scale Integration (SSI and MSI) were used in third generation of computers and Large Scale Integration and Very Large Scale Integration (LSI and VLSI) are being used in fourth generation of computers. People are now expecting ULSI (Ultra Large Scale Integration) Circuits to be used for fifth generation computers.
7. The capacity of 3.5 inch floppy disk is
Correct Answer: d. 1.44 MB
Explanation: Microfloppy disks (3.5 inch) if it is high density (MF2HD) can store 1.44 MB and if it is low density (MF2DD), it can store 720 KB. Mini Floppy disks (5.25 inch) if it is high density (MD2HD) can store 1.2 MB and low density (MD2DD) stores 360 KB of data.
8. The first computer introduced in Nepal was
Correct Answer: b. IBM 1401
Explanation: IBM 1401, a second generation computer was brought in Nepal by