Computer GK Objective Q&A

Computer GK


1. Which of the following groups consist of only input devices ?

(A)
Mouse, Keyboard, Moniter

(B)
Mouse, Keyboard, Printer

(C)
Mouse, Keyboard, Plotter

(D)
Mouse, Keyboard, Scanner

(E)
None of these

Answer: (D) Mouse, Keyboard, Scanner



2. A menu contains a list of

(A)
commands

(B)
data

(C)
objects

(D)
reports

(E)
None of these

Answer: (A) Commands



3. What is output ?

(A)
What the processor takes from the user

(B)
What the user gives to the processor

(C)
What the processor gets from the user

(D)
What the processor gives to the user

(E)
None of these

Answer: (D) What the processor gives to the user



4. An error is also known as

(A)
bug

(B)
debug

(C)
cursor

(D)
icon

(E)
None of these

Answer: (A) bug



5. Computer —————– is whatever is typed, submitted, or transmitted to a computer system

(A)
input

(B)
output

(C)
data

(D)
circuitry

(E)
None of these

Answer: (A) input



6. Which process checks to ensure the components of the computer are operating and connected properly ?

(A)
Booting

(B)
Processing

(C)
Saving

(D)
Editing

(E)
None of these

Answer: (A) Booting



7. Unsolicted commerical email is commonly known as

(A)
sapm

(B)
junk

(C)
hoaxes

(D)
hypertext

(E)
None of these

Answer: (A) sapm



8. —————- is processed by the computer into information

(A)
numbers

(B)
processor

(C)
input

(D)
data

(E)
None of these

Answer: (D) data



9. A web site address is a unique name that identifies a specific ————- on the web

(A)
web browser

(B)
web site

(C)
PDA

(D)
link

(E)
None of these

Answer: (B) web site



10. A device that connects to a network without the use of cables is said to be

(A)
distributed

(B)
centralised

(C)
open source

(D)
wireless

(E)
None of these

Answer: (D) wireless



11. Editing document consists of reading through the documentyou’ve creaated, then

(A)
correcting your errors

(B)
printing it

(C)
saving it

(D)
deleting it

(E)
None of these

Answer: (A) correcting your errors



12. The Internet allows you to

(A)
send electronic mail

(B)
view web page

(C)
connect to servers all around the world

(D)
All of these

(E)
None of these

Answer: (D) All of these



13. Most mail programs automatically complete the following two parts in an e-mail

(A)
From : and Body :

(B)
From : and Date :

(C)
From : and To :

(D)
From : and Subject :

(E)
None of these

Answer: (B) From : and Date :



14. Where is the disk put in a computer ?

(A)
in the modem

(B)
in the hard drive

(C)
into the CPU

(D)
in the disk drive

(E)
None of these

Answer: (D) in the disk drive



15. The name a user assigns to a document is called a(n)

(A)
filename

(B)
program

(C)
record

(D)
data

(E)
None of these

Answer: (A) filename



16. An e-mail address typically consists of a User ID follwed by the ———— sign and the name of the e-mail server that manages the user’s electronic post office box

(A)
@

(B)
#

(C)
&

(D)
*

(E)
None of these

Answer: (A) @



17. A personal computer is designed to meet the computing needs of a(n)

(A)
individual

(B)
department

(C)
company

(D)
city

(E)
None of these

Answer: (A) individual



18. Cirl,shift and alt are called ——— keys

(A)
adjustment

(B)
function

(C)
modifier

(D)
alphanumeric

(E)
None of these

Answer: (B) function



19. File ——– shrinks the sice of a file so it requires less storage space

(A)
scanning

(B)
synthesizing

(C)
defragmenting

(D)
compression

(E)
None of these

Answer: (D) compression



20. In addition to the basic typing keys, desktop and notebook computer keyboards include a(n) ——– keypad to efficiently move the screen- based insertion point

(A)
editing

(B)
number

(C)
locked

(D)
docked

(E)
None of these

Answer: (B) number

Objective questions for railway exam

Objective questions for railway exam

1.The great law provider in ancient India was

(A)
Panini

(B)
Manu

(C)
Kautilya

(D)
None of thse

Answer: (B) Manu



2. Lord Buddha got Nirvana at

(A)
Bodh Gaya

(B)
Sarnath

(C)
Kushinagar

(D)
Lumbini

Answer: (A) Bodh Gaya



3. The main capital in Sarnath was under the suzerainty of

(A)
Chandragupta

(B)
Ashoka

(C)
Kanishk

(D)
Harsha

Answer: (A) Chandragupta



4. Which of the following temples was built by Cholas ?

(A)
Shore temple – Mahabalipuram

(B)
Brihadeshwar temple – Thanjavur

(C)
Sun temple – Konark

(D)
Meenakshi temple – Madurai

Answer: (B) Brihadeshwar temple – Thanjavur



5. Who built Mahabodhi temple in Bodh Gaya ?

(A)
Gopal

(B)
Devpal

(C)
Dharma Pal

(D)
Ashoka

Answer: (D) Ashoka



6. Two chief cities under the rule of Chauhan, were

(A)
Delhi and Mevar

(B)
Mevar and Kannauj

(C)
Indraprastha and Kannauj

(D)
None of these

Answer:(A) Delhi and Mevar



7. Who was the only muslim lady to occupy the throne of Delhi ?

(A)
Nurjahan

(B)
Raziya Sultan

(C)
Mumtaj Mahal

(D)
Hamidabanu Begum

Answer: (B) Raziya Sultan



8. Nurjahan was the queen of which famous king of Mughal empire ?

(A)
Akabar

(B)
Aurangzeb

(C)
Shanjahan

(D)
Jahangir

Answer: (D) Jahangir



9. In 1498 Vasco de Gama landed at

(A)
Mumbai

(B)
Kochin

(C)
Calicut

(D)
Goa

Answer: (C) Calicut



10. The East India Company was formed in

(A)
1580

(B)
1600

(C)
1620

(D)
1606

Answer: (B) 1600



11. The Political Guru of the father of nation was

(A)
Madan Mohan Malviya

(B)
Gopal Krishna Gokhale

(C)
Dadabhai Naoroji

(D)
None of these

Answer: (B) Gopal Krishna Gokhale



12. At the death of Gandhiji who said, “Light has gone from our lives’ ?

(A)
Dr. Rajendra Prasad

(B)
Pt. Jawaharalal Nehru

(C)
Dr. S. Radhakrishnan

(D)
Lord Mountbaten

Answer: (B) Pt. Jawaharalal Nehru



13. Who wrote ‘Poverty and Un-British Rule in India ‘ ?

(A)
R. C. Dutta

(B)
Dadabhai Naoroji

(C)
D. R. Gadgil

(D)
B. N. Ganguly

Answer: (B) Dadabhai Naoroji



14. Who is responsible for coining the concept of democratic government ?

(A)
Greek

(B)
British

(C)
Frensh

(D)
American

Answer: (D) American



15. In which of the following states, Panchayati Raj was first inplemented ?

(A)
Rajasthan

(B)
Gujarat

(C)
Uttar Pradesh

(D)
Bihar

Answer: (A) Rajasthan



16. The second tier of Panchayati Raj system is called

(A)
Zila Parishad

(B)
Taluka Panchayat

(C)
Panchayat Samiti

(D)
Gram Sabha

Answer: (C) Panchayat Samiti



17. The Chief Justice of High Courts and other justices are appointed by

(A)
President

(B)
Chief Justice of Supreme Court

(C)
Governor of the state concerned

(D)
Chief Minister of the state concerned

Answer: (A) President



18. The Chief Justice of Supreme Court is administered the oath of office by

(A)
Union Law Minister

(B)
Chief Justice of India

(C)
President

(D)
Prime Minister

Answer: (C) President



19. The earth’s axis of rotation is inclined at an angle of ——— with the plane of the orbit of the earth around sun

(A)
66 1/2°

(B)
23 1/2°

(C)
90°

(D)
47°

Answer: (A) 66 1/2°



20. Days and nights are caused by

(A)
rotation of earth on its axis

(B)
revolution of earth

(C)
rotation and revolution of earth

(D)
None of these

Answer: (A) rotation of earth on its axis

Silicon

Silicon

Silicon is a chemical element with the symbol Si and atomic number 14. It is a tetravalent metalloid, less reactive than its chemical analog carbon, the nonmetal directly above it in the periodic table, but more reactive than germanium, the metalloid directly below it in the table. Controversy about silicon's character dates to its discovery; it was first prepared and characterized in pure form in 1823. In 1808, it was given the name silicium (from Latin: silex, hard stone or flint), with an -ium word-ending to suggest a metal, a name which the element retains in several non-English languages. However, its final English name, first suggested in 1817, reflects the more physically similar elements carbon and boron.
Silicon is the eighth most common element in the universe by mass, but very rarely occurs as the pure free element in nature. It is most widely distributed in dusts, sands, planetoids, and planets as various forms of silicon dioxide (silica) or silicates. Over 90% of the Earth's crust is composed of silicate minerals, making silicon the second most abundant element in the Earth's crust (about 28% by mass) after oxygen.

Most silicon is used commercially without being separated, and indeed often with little processing of compounds from nature. These include direct industrial building-use of clays, silica sand and stone. Silica is used in ceramic brick. Silicate goes into Portland cement for mortar and stucco, and when combined with silica sand and gravel, to make concrete. Silicates are also in whiteware ceramics such as porcelain, and in traditional quartz-based soda-lime glass. More modern silicon compounds such as silicon carbide form abrasives and high-strength ceramics. Silicon is the basis of the ubiquitous synthetic silicon-based polymers called silicones.
Elemental silicon also has a large impact on the modern world economy. Although most free silicon is used in the steel refining, aluminum-casting, and fine chemical industries (often to make fumed silica), the relatively small portion of very highly purified silicon that is used in semiconductor electronics (< 10%) is perhaps even more critical. Because of wide use of silicon in integrated circuits, the basis of most computers, a great deal of modern technology depends on it.

Silicon is an essential element in biology, although only tiny traces of it appear to be required by animals.However, various sea sponges as well as microorganisms like diatoms need silicon in order to have structure. It is much more important to the metabolism of plants, particularly many grasses.

Silicon सिलिकॉन

Silicon सिलिकॉन

सिलिकॉन (Silicon) ; प्रतीक : Si) एक भौतिक तत्त्व है। यह पृथ्वी पर ऑक्सीजन के बाद सबसे अधिक पाया जाने वाला तत्व है। सिलिकॉन के यौगिक एलेक्ट्रॉनिक अवयव, साबुन, शीशे एवं कंप्यूटर चिप्स में इस्तेमाल किए जाते हैं। सिलिकॉन की खोज १८२४ में स्वीडन के रसायनशास्त्री जोंस जकब बज्रेलियस ने की थी। आवर्त सारिणी में इसे १४वें स्थान पर रखा गया है।

उपयोग

सिलिकॉन यौगिकों, जैसे सिलिकॉन कारबाइड (SiC) को उनकी अनोखी विशेषताओं के लिए इस्तेमाल किया जाता है। कठोरता में यह तत्व हीरे की बराबरी करता है। जब सिलिकॉन को अन्य तत्वों के साथ मिलाया जाता है तो उस यौगिक को सिलिकेट कहते हैं। सिलिकेट्स को अनेक औद्योगिक कार्यो के लिए इस्तेमाल में लाया जाता है। इनकी अन्य रासायनिक यौगिकों के साथ क्रिया कराई जाती है ताकि यह अपने सिलिकॉन तत्व अलग करें या अन्य तत्वों के साथ विभिन्न कार्यों के लिए क्रिया कर सकें। बेकरी के नॉन-स्टिक उपकरण, बिजली उत्पादों के शील्ड सिलिकॉन से बनते हैं।

सिलिकॉन का इलेक्ट्रॉनिक्स क्षेत्र में अधिकाधिक प्रयोग होने के कारण अमेरिका की कंप्यूटर जगत के केंद्र को सिलिकॉन वैली का नाम दिया गया है।

Satya Nadella

Satya Nadella

Satya Nadella born Nadella Satya Narayana is the Chief Executive Officer of Microsoft. He was appointed CEO on February 4, 2014, succeeding Steve Ballmer. Previously, he was executive vice president of Microsoft’s Cloud and Enterprise group, responsible for building and running the company’s computing platforms, developer tools and cloud services.

Early life

Nadella was born in Hyderabad, Andhra Pradesh. to an IAS officer, B. N. Yugandhar, hailing from Krishna District of Andhra Pradesh, India. who was a member of the Planning Commission during 2004–2009 under Prime Minister Manmohan Singh. Satya attended the Hyderabad Public School in Begumpet before attaining a bachelor of engineering in electronics and communication degree from Manipal Institute of Technology, Manipal, Karnataka. though on the Microsoft site, it has his institution listed as Mangalore University.

After moving to the US, Nadella earned an MS in Computer Science from the University of Wisconsin–Milwaukee and an MBA from the University of Chicago Booth School of Business.

Nadella played cricket competitively growing up, and cites it as one of his hobbies today. Nadella has said, "I think playing cricket taught me more about working in teams and leadership that has stayed with me throughout my career."
Nadella said he "always wanted to build things." He knew that computer science was what he wanted to pursue. But that emphasis was not available when he attended Manipal University in Karnataka, where he got a bachelor's degree in electrical engineering. “And so it was a great way for me to go discover what turned out to become a passion,” he says.

Career

Nadella worked with Sun Microsystems, as a member of its technology staff, prior to joining Microsoft in 1992

Satya Nadella सत्य नडेला

Satya Nadella सत्य नडेला

माइक्रोसॉफ्ट ने भारतीय मूल के सत्य नडेला (Satya Nadella) को कंपनी का नया CEO बना दिया है।
माइक्रोसॉफ्ट के को-फाउंडर बिल गेट्स ने कहा कि आज के इस बदलते दौर में सत्य नडेला से अच्छा कोई व्यक्ति नहीं हो सकता जो माइक्रोसॉफ्ट का नेतृत्व कर सके।

उनका कहना है कि सत्य में अच्छी इंजीनियरिंग स्किल्स के साथ-साथ एक लीडर होने की सारी खूबियां हैं। उनमें लोगों को साथ लाने का हुनर और अच्छा बिजनेस विजन है। नडेला का टेक्नोलॉजी के इस्तेमाल का विजन बिल्कुल वैसा ही है जैसा कि माइक्रोसॉफ्ट कंपनी को चाहिए।

1967 में आंध्र प्रदेश के कृष्णानगर जिले में पैदा हुए सत्य का पूरा नाम सत्य नारायण नडेला है। सत्य 1992 में मजह 25 साल की उम्र में ही माइक्रोसॉफ्ट से जुड़ गए थे। पिछले 22 सालों से लगातार माइक्रोसॉफ्ट से जुड़े सत्य इसके तीसरे CEO हैं। इनकी सैलरी 4.75 अरब रुपए है।

भारत रत्न से पुरस्कृत महान विभूतियों की सूची

अब तक भारत रत्न से पुरस्कृत महान विभूतियों की सूची

1. डॉ. सर्वपल्ली राधाकृष्णन (1954)
2. डॉ. चंद्रशेखर वेंकट रमन (1954)
3. चक्त्रवर्ती राजगोपालाचारी (1954)
4. मोक्षगुन्दम विवेस्वरया (1955)
5. जवाहरलाल नेहरू (1955)
6. डॉ. भगवान दास (1955)
7. पं. गोविंद वल्लभ पंत (1957)
8. धोंडे केशव कर्वे (1958)
9. पुरुषोत्तम दास टंडन (1961)
10. डॉ. बिधान चन्द्र रॉय (1961)
11. डॉ. राजेंद्र प्रसाद (1962)
12. डॉ. जाकिर हुसैन (1963)
13. पांडुरंग वामन केन (1963)
14. लाल बहादुर शास्त्री (1966)
15. इंदिरा गांधी (1971)
16. वराहगिरी वेंकट गिरि (1975)
17. कुमारस्वामी कामराज (1976)
18. मदर टेरेसा (1980)
19. आचार्य विनोबा भावे (1983)
20. खान अब्दुल गफ्फार खान (1987)
21. सिल्विया मरुदुर रामचंद्रन (1988)
22. नेल्सन मंडेला (1990)
23. डॉ. भीमराव अंबेडकर (1990)
24. सरदार वल्लभभाई पटेल (1991)
25. राजीव गांधी (1991)
26. मोरारजी देसाई (1991)
27. सत्यजीत रे (1992)
28. मौलाना अबुल कलाम आजाद (1992)
29. जहांगीर रतनजी दादाभाई टाटा (1992)
30. गुलजारी लाल नंदा (1997)
31. अरुणा आसफ अली (1997)
32. डॉ. एपीजे अब्दुल कलाम (1997)
33. शंमुखावादिवु सुब्बुलक्ष्मी मदुरै (1998)
34. चिदम्बरम सुब्रमण्यम (1998)
35. पंडित रविशंकर (1999)
36. जयप्रकाश नारायण (1999)
37. गोपीनाथ बोरदोलोई (1999)
38. प्रोफेसर अम‌र्त्य सेन (1999)
39. उस्ताद बिस्मिल्ला खान (2001)
40. लता मंगेशकर (2001)
41. पंडित भीमसेन जोशी (2009)
42. सीएनआर राव (2014)
43. सचिन तेंदुलकर (2014)