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Monday, April 25, 2016

Computer Test

1. Cipher is a key–pad that can be used to ––––
1) Control access into areas 
2) Work for all 
3) Control specific task
4) All of the above 
5) None of these

2. What is the primary goal of a computer system ?
1) To utilize the stored data 
2) To start the application
3) To turn data into information 
4) All of the above 
5) None of these

3. An organized collection of data about a single entity is called ––––
1) Directory 
2) File 
3) Sub–directory 
4) Database 
5) None of these

4. User–friendly means –––
1) Easy to use, operate and understand etc.
2) Understood by means of straight forward guide.
3) Process that makes it easier for novice to use a computer.
4) All of the above
5) None of these

5.Which is not a functions of firewall ?
1) To block websites from being able to access your computer.
2) To regulate some of the flow of traffic between computers networks of different trust level.
3) It stops anyone on the outside from establishing a connection with a computer in your private network.
4) Only 2 and 3
5) None of these

6. The Process of analyzing the data stored with the back office staff is known as ––––
1) Data mining 
2) Data migration 
3) Data entry 
4) Data interpretation 
5) Data warehousing

7.What term is used for the occurrence of values for data elements more than once ?
1) Concurrency 
2) Redundancy 
3) Enumeration 
4) Iteration 
5) None of these

8. Which of the following is a high level language ?
1) Java script 
2) Php 
3) C# 
4) C 
5) All of the above

9. CUI stands for –––
1) Character User Interface 
2) Central User Intercom
3) Common User Interface 
4) Control User Interface 
5) None of these

10. 1024 MB = ?
1) 1 YB 
2) 1 KB 
3) 1 PB 
4) 1 ZB 
5) None of these

11. What is a shortcut key to print the current page or document ?
1) Alt + P 
2) Ctrl + V 
3) Ctrl + P 
4) Shift + P 
5) None of these

12. .jpeg stands for –––
1) Joint Photographic Experts Group 
2) JPEG image file
3) Power point presentation 
4) Multiple network graphic
5) None of these

13.Who was the inventor of world wide web ?
1) Marks Zuckerberg 
2) Tim Berners Lee 
3) Thomas Reardon 
4) Ray Tomlinson 
5) Henery A Rowland

14. Logo of amazon.com indicates that ––––
1) Look at the top
2) Save your time and money
3) You can get everything from A to Z
4) Best deal on amazon
5) None of these

15. The first spam email was sent by –––
1) Gary Thuerk 
2) Adi Shamir 
3) Alan Kay 
4) Charles Thomas 
5) Henry Phillips

Answers:
1. 1 
2. 3 
3. 2 
4. 4 
5. 5
6. 1 
7. 2 
8. 5 
9. 1 
10. 5
11. 3 
12. 1 
13. 2 
14. 3 
15. 1

Monday, April 11, 2016

Computer Awareness Test

1. What is the term for unsolicited e-mail ?
(1) newsgroup
(2) Usenet
(3) backbone
(4) spam 
(5) flaming

2. The code for a Web page is written using ——
(1) a fifth generation language
(2) Hypertext Markup Language
(3) Win Zip        
(4) Perl
(5) URL 

3. Internet uses
(1) Telex switching
(2) Circuit switching
(3) Telephone switching
(4) Packet switching  
(5) None of these

4. When the pointer is positioned on a ______ , it is shaped like a hand.
(1) hyperlink
(2) grammar error
(3) screen tip
(4) spelling error
(5) formatting error 

5. Internet is
(1) a local computer network
(2) a world wide network of computers
(3) a world wide interconnected network of computers which use a common protocol to communicate with one another
(4) an interconnected network of computers
(5) None of these

6. Which facilities is/are available on the internet are 
(i) electronic mail
(ii) remote login
(iii) file transfer
(iv) word processing

(1) i,ii
(2) ii, iii and iv
(3) i.ii.iv 
(4) i, ii.iii 
(5) None of these

7.  Internet requires
(1) an international agreement to connect computers
(2) a commonly agreed set of rules to communicate between computers
(3) a local area network
(4) a LAN wire
(5) None of these

8.  Each computer connected to the internet must
(1) be an IBM PC
(2) be internet compatible
(3) have a unique IP address
(4) have a modem connection
(5) None of these

9.  IP address is currently
(1) None of these
(2) available in plenty
(3) 6 bytes long
(4) not assigned as it is all used up
(5) 4 bytes long

10. IP addresses are converted to
(1) a binary string
(2) a hierarchy of domain names
(3) alphanumeric string
(4) a hexadecimal string
(5) None of these

Answers
1.   4
2.   2
3.   4
4.   1
5.   3
6.   4
7.   2
8.   3
9.   5

Saturday, April 2, 2016

Computer practice questions

                                                         Computer Test

1. To change selected text to all capital letters, click the change case button, then click
1) Uppercase
2) Upper all
3) Capslock
4) Lock Upper
5) Large Size

2. A person who uses his or her expertise to gain access to other people’s computers to get information illegally or do damage is a
1) hacker
2) analyst
3) instant messenger
4) programmer
5) spammer

3. A device that connects to a network without the use of cables is said to be
1) distributed
2) free
3) centralized
4) open source
5) None of these

4. Reusable optical storage will typically have the acronym
1) CD
2) DVD
3) ROM
4) RW
5) ROS

5. The most common type of storage devices are
1) persistent
2) optical
3) magnetic
4) flash
5) steel

6. Codes consisting of lines of varying widths or lengths that are computer readable are known as
1) an ASCII code
2) a magnetic tape
3) a bar code
4) an OCR scanner
5) None of these

7. A Web site’s main page is called its
1) Homepage
2) Browser page
3) Search Page
4) Bookmark
5) None of these

8. Part number, part description, and number of parts ordered are examples of
1) control
2) output
3) processing
4) feedback
5) input

9. To access properties of an object, the mouse technique to use is
1) dragging
2) dropping
3) right-clicking
4) shift-clicking
5) None of these

10. Computers use the ________ number system to store data and perform calculations.
1) binary
2) octal
3) decimal
4) hexadecimal
5) None of these

11. ________ are attempts by individuals to obtain confidential information from you by falsifying their identity.
1) Phishing trips
2) Computer viruses
3) Spyware scams
4) Viruses
5) Phishing scams

12. Why is it unethical to share copyrighted files with your friends?
1) It is not unethical, because it is legal.
2) It is unethical because the files are being given for free.
3) Sharing copyrighted files without permission breaks copyright laws.
4) It is not unethical because the files are being given for free.
5) It is not unethical - anyone can access a computer

13. Which of the following can be used to select the entire document?
1) CTRL + A
2) ALT + F5
3) SHIFT + A
4) CTRL + K
5) CTRL + H

14. To instruct Word to fit the width of a column to the contents of a table automatically, click the________ button and then point to AutoFit Contents.
1) Fit to Form
2) Format
3) Auto-size
4) Contents
5) Auto Fit

15. The simultaneous processing of two or more programs by multiple processors is
1) multiprogramming
2) multitasking
3) time-sharing
4) multiprocessing
5) None of these

Answers..
1. 1  2. 1   3. 5   4. 4   5. 3   6. 3   7. 1  8. 5   9. 3   10. 1    11. 1   12. 3   13. 1   14. 5  15. 4


Tuesday, January 5, 2016

The Greatest Person in Computer Science


Ali Aydar

Ali Aydar
Ali Aydar is a computer scientist and Internet entrepreneur. He is the chief executive officer at Sporcle. He is best known as an early employee and key technical contributor at the original Napster. Aydar bought Fanning his first book on programming in C++, the language he would use two years later to build the Napster file-sharing software.

Anita Borg

Anita Borg
Anita Borg (January 17, 1949 – April 6, 2003) was an American computer scientist. She founded the Institute for Women and Technology (now the Anita Borg Institute for Women and Technology). While at Digital Equipment, she developed and patented a method for generating complete address traces for analyzing and designing high-speed memory systems.

Alfred Aho

Alfred Aho
Alfred Aho (born August 9, 1941) is a Canadian computer scientist best known for his work on programming languages, compilers, and related algorithms, and his textbooks on the art and science of computer programming. Aho received a B.A.Sc. in Engineering Physics from the University of Toronto.

Bjarne Stroustrup

Bjarne Stroustrup
Bjarne Stroustrup (born 30 December 1950) is a Danish computer scientist, most notable for the creation and development of the widely used C++ programming language. He is a Distinguished Research Professor and holds the College of Engineering Chair in Computer Science.

Bill Gates

Bill Gates
Bill Gates (born October 28, 1955) is an American business magnate, philanthropist, investor, computer programmer, and inventor. Gates is the former chief executive and chairman of Microsoft, the world’s largest personal-computer software company, which he co-founded with Paul Allen.

Bruce Arden

Bruce Arden
Bruce Arden (born in 1927 in Minneapolis, Minnesota) is an American computer scientist. He graduated from Purdue University with a BS(EE) in 1949 and started his computing career in 1950 with the wiring and programming of IBM's hybrid (mechanical and electronic) Card Programmed Computer/Calculator at the Allison Division of General Motors.

Brendan Eich

Brendan Eich
Brendan Eich (born 1960 or 1961)is an American technologist and creator of the JavaScript scripting language. He cofounded the Mozilla project, the Mozilla Foundation and the Mozilla Corporation, and served as the Mozilla Corporation's chief technical officer and briefly its chief executive officer.

Barry Boehm

Barry Boehm
Barry Boehm (born 1935) is an American software engineer, Distinguished Professor of Computer Science, Industrial and Systems Engineering, the TRW Professor of Software Engineering. He is known for his many contributions to the area of software engineering.

Bert Bos

Bert Bos
Bert Bos (born 10 November 1963, The Hague, Netherlands) is a computer scientist. He studied mathematics at the University of Groningen, and wrote his PhD thesis on Rapid user interface development with the script language Gist. In 1996, he joined the World Wide Web Consortium (W3C) to work on Cascading Style Sheets (CSS).

Bryan Cantrill

Bryan Cantrill
Bryan Cantrill (born 1973) is an American Software Engineer who worked at Sun Microsystems and later at Oracle Corporation following its acquisition of Sun. Cantrill was included in the TR35 list for his development of DTrace, a function of the OS Solaris 10 that provides a non-invasive means for real-time tracing and diagnosis of software. He is currently Chief Technology Officer at Joyent.

Charles Babbage

Charles Babbage
Charles Babbage FRS (26 December 1791 – 18 October 1871) was an English polymath. He was a mathematician, philosopher, inventor and mechanical engineer, who is best remembered now for originating the concept of a programmable computer.

Dennis Ritchie

Dennis Ritchie
Dennis Ritchie(September 9, 1941 – c. October 12, 2011) was an American computer scientist. He created the C programming language and, with long-time colleague Ken Thompson, the Unix operating system. Ritchie and Thompson received the Turing Award from the ACM in 1983.

David J. Brown

David J. Brown
David J. Brown is an American computer scientist. He was one of a small group that helped to develop the system at Stanford that later resulted in Sun Microsystems, and later was a founder Silicon Graphics in 1982. He define the application binary interface for Solaris, Sun's principal system software product.

Edgar F. Codd

Edgar F. Codd
Edgar F. Codd (August 19, 1923 – April 18, 2003) was an English computer scientist who, while working for IBM, invented the relational model for database management, the theoretical basis for relational databases. He made other valuable contributions to computer science.

Frances Allen

Frances Allen
Frances Allen (born August 4, 1932) is an American computer scientist and pioneer in the field of optimizing compilers. Her achievements include seminal work in compilers, code optimization, and parallelization. She also had a role in intelligence work on programming languages.

Gordon Bell

Gordon Bell
Gordon Bell (born August 19, 1934) is an American electrical engineer and manager. An early employee of Digital Equipment Corporation (DEC) 1960–1966, Bell designed several of their PDP machines and later became Vice President of Engineering 1972-1983, overseeing the development of the VAX.

Gregory Chaitin

Gregory Chaitin
Gregory Chaitin (born 15th. November, 1947 in Argentina) is an Argentine-American mathematician and computer scientist. Beginning in the late 1960s, Chaitin made contributions to algorithmic information theory and metamathematics, in particular an computer-theoretic result equivalent to Godel's incompleteness theorem.

James Gosling

James Gosling
James Gosling OC (born May 19, 1955) is a Canadian computer scientist, best known as the father of the Java programming language. In 1977, Gosling received a Bachelor of Science in Computer Science from the University of Calgary.

John Backus

John Backus
John Backus (December 3, 1924 – March 17, 2007) was an American computer scientist. He directed the team that invented the first widely used high-level programming language (FORTRAN) and was the inventor of the Backus-Naur form (BNF), a widely used notation to define formal language syntax.

Jon Crowcroft

Jon Crowcroft
John Crowcroft (born 23 November 1957) is the Marconi Professor of Communications Systems in the Computer Laboratory of the University of Cambridge. Professor Jon Crowcroft is distinguished for his many seminal contributions to the development of the Internet. His work on satellite link interconnection techniques in the 1980s paved the way for rural broadband.

Larry Page

Larry Page
Larry Page (born March 26, 1973) is an American business magnate and computer scientist who is the co-founder of Google, alongside Sergey Brin. On April 4, 2011, Page succeeded Eric Schmidt as the chief executive officer of Google. As of 2014, Page's personal wealth is estimated to be US$32. 3 billion, ranking him #19 on the Forbes list of billionaires.

Larry Wall

Larry Wall
Larry Wall (born September 27, 1954) is a computer programmer and author, most widely known as the creator of the Perl programming language and Camelia, the spunky spokesbug for Perl 6. Wall grew up in south Los Angeles and then Bremerton, Washington, before starting higher education at Seattle Pacific University in 1976.

Linus Torvalds

Linus Torvalds
Linus Benedict Torvalds (born December 28, 1969) is a Finnish American software engineer, and he is well known for the architect and development of the Linux kernel. He was honored, along with Shinya Yamanaka, with the 2012 Millennium Technology Prize by the Technology Academy Finland "in recognition of his creation of a new open source operating system for computers leading to the widely used Linux kernel.

Luis Von Ahn

Luis Von Ahn
Luis Von Ahn (born 1979) is a Guatemalan entrepreneur and an associate professor in the Computer Science Department at Carnegie Mellon University. He is known as one of the pioneers of crowdsourcing. He is the founder of the company reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo, a popular language-learning platform.

Luca Cardelli

Luca Cardelli
Luca Cardelli FRS is an Italian computer scientist who is an Assistant Director at Microsoft Research in Cambridge, UK. Cardelli is well known for his research in type theory and operational semantics. Among other contributions, he helped design Modula-3, implemented the first compiler for the (non-pure) functional programming language ML.

Michael Dell

Michael Dell
Michael Dell (born February 23, 1965) is an American business magnate, investor, philanthropist, and author. He is known as the founder and CEO of Dell Inc., one of the world’s leading sellers of personal computers (PCs).

Michael Dertouzos

Michael Dertouzos
Michael Dertouzos (November 5, 1936 - August 27, 2001) was a Professor at the Massachusetts Institute of Technology and Director of the M.I.T. Laboratory for Computer Science (LCS) from 1974 to 2001. During Dertouzos's term, LCS innovated in a variety of areas, including RSA encryption, the spreadsheet, the NuBus, the X Window System, and the Internet.

Maurice Vincent Wilkes

Maurice Vincent Wilkes
Maurice Vincent Wilkes (26 June 1913 – 29 November 2010) was a British computer scientist credited with several important developments in computing. At the time of his death, Wilkes was an Emeritus Professor of the University of Cambridge. He received a number of distinctions.

Nello Cristianini

Nello Cristianini
Nello Cristianini (born 1968) is a Professor of Artificial Intelligence at the University of Bristol, a recipient of the Royal Society Wolfson Research Merit Award. His research contributions across different areas, such as machine learning, artificial intelligence and bioinformatics. Specifically, his work is concentrated in the statistical analysis of the learning algorithms.

Philip Don Estridge

Philip Don Estridge
Philip Don Estridge (June 23, 1937 - August 2, 1985), known as Don Estridge, led development of the original IBM Personal Computer (PC), and thus is known as "father of the IBM PC". His decisions dramatically changed the computer industry, resulting in a vast increase in the number of personal computers sold and bought.

Philip Matthaus Hahn

Philipp Matthaus Hahn
Philipp November 25, 1739 in Scharnhausen, today part of Ostfildern - May 2, 1790 in Echterdingen, today part of Leinfelden-Echterdingen) was a German priest and inventor. In about 1763 he devised a precision sundial, or heliochronometer that incorporated the correction for the equation of time.

Per Brinch Hansen

Per Brinch Hansen
Per Brinch Hansen (November 13, 1938 – July 31, 2007) was a Danish-American computer scientist known for concurrent programming theory. In 1970, his research in computer science focused on concurrent programming, Inspired by Ole-Johan Dahl and Kristen Nygaard's programming language Simula 67, he invented the monitor concept in 1972.

Rasmus Lerdorf

Rasmus Lerdorf
Rasmus Lerdorf (born 22 November 1968) is a Greenlandic programmer with Canadian citizenship. He created the PHP scripting language, authoring the first two versions of the language and participating in the development of later versions led by a group of developers including Jim Winstead.

Richard Stallman

Richard Stallman
Richard Stallman (born March 16, 1953) is an American is a software freedom activist and computer programmer. He is best known for launching the GNU Project, founding the Free Software Foundation, developing the GNU Compiler Collection and GNU Emacs, and writing the GNU General Public License.

Robert S. Boyer

Robert S. Boyer
Robert S.Boyer is a retired professor of computer science, mathematics, and philosophy at The University of Texas at Austin. He and J Strother Moore invented the Boyer–Moore string search algorithm, a particularly efficient string searching algorithm, in 1977. He and Moore also collaborated on the Boyer–Moore automated theorem prover, Nqthm, in 1992.

Sabeer Bhatia

Sabeer Bhatia
Sabeer Bhatia was born in Chandigarh on 30 December 1968. He grew up in Bangalore and had his early education at the Bishop's School in Pune and then at St Joseph's Boys High School in Bangalore. Sabeer Bhatia is an Indian American entrepreneur who founded the Hotmail email service and Jaxt.

Sergey brin

Sergey brin
Sergey Brin (born August 21, 1973) is an American computer scientist and internet entrepreneur who, with Larry Page, co-founded Google, one of the most profitable Internet companies. As of June 2014, his personal wealth was estimated to be US$ 30 billion. Together, Brin and Page own about 16 percent of the company.

Serge Abiteboul

Serge Abiteboul
Serge Abiteboul is a computer scientist working in the areas of data management, database theory, and finite model theory. He is currently a senior researcher at the Institute national de recherche en informatique et en automatique (INRIA), the French national research institute focussing on computer science and related areas, and has been a professor of the College de France.

Tim Berners Lee

Tim Berners Lee
Tim Berners Lee (born 8 June 1955), also known as "TimBL", is a British computer scientist, best known as the inventor of the World Wide Web. Berners Lee is the director of the World Wide Web Consortium (W3C), which oversees the Web's continued development.

Vint Cerf

Vint Cerf
Vint Cerf ( born June 23, 1943) is an American internet pioneer, who is recognized as one of "the fathers of the Internet", sharing this title with American engineer Bob Kahn. His contributions have been acknowledged and lauded, repeatedly. He was instrumental in the development of the first commercial email system (MCI Mail) connected to the Internet.