Quitz1

For Practice:

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1. where are programs and data to be used by the computer available? 1 Output 2 Processing unit 3 Input 4 Storage

2. A parallel port is most often used by a - 1 Mouse 2 Monitor 3 Printer 4 External storage device

3. Computer follows a simple principle called GIGO which means: 1 Garbage in garbage out 2 Garbage input good output 3 Good input good output 4 Greater instructions greater output

4. Arrange the following devices in ascending order of the speed: A. RAM B. Hard disk C. Cache D. Floppy 1 ABDC 2 BDAC 3 DBAC 4 BADC

5. What is the commonly used unit for measuring the sped of data transmission? 1 Bits per second 2 Nano seconds 3 Characters per second 4 Mega Hertz

6. Which one among the following is not included in the basic functions of operating system? 1 Job Control 2 Job Scheduling 3 Memory Management 4 Data Management

7. 'Blue tooth' technology allows - 1 Landline phone to mobile phone communication 2 Signal transmission on mobile phones only 3 Wireless communication between equipments 4 Satellite television communication

8. Which of the following statements about the Crime and Criminal Tracking Network System (CCTNS) is/are correct? 1. It will facilitate real time access of classified criminal data to the law enforcement authorities. 2. National Crime Record Bureau is the nodal agency mandated to implement the network in all the states. Select the correct answer using the code given below- 1 1 only 2 2 only 3 Both 1 and 2 4 Neither 1 nor 2

9. One byte consists of 1 four bits 2 one bit 3 ten bit 4 eight bits

10. ENIAC was 1 an electronic computer 2 an engine 3 a memory device 4 an electronic calculator

Answer Key Q.N. Answer 1 4 2 3 3 1 4 3 5 1 6 1 7 3 8 1 9 4 10 1   Objective General Knowledge for Practice 2 1. The primary purpose of an operating system is.... 1 To make the most efficient use of the computer hardware 2 To allow people to use the computer 3 To keep systems programmers employed 4 To make computers easier to use Ans: 1 2. ............ runs on computer hardware and serve as platform for other software's to run on 1 Operting System 2 Application Software 3 System Software 4 All Ans: 1 3. Integrated circuits contained 1 10 to 20 components 2 20 to 30 components 3 25 to 25 components 4 35 to 25 components Ans: 1 4. How many vaccum tubes was used in first analytical engine- 1 10000 2 12000 3 90000 4 14000 Ans: 1 5. EDVAC is 1 Electronic Detected Variable Automatic Computer 2 Electronic Discrete Variable Automatic Computer 3 Electronic Discrete Valuable Automatic Computer 4 Electronic Developed Valuable Automatic Computer Ans: 2 6. ENIAC was the computer of- 1 Storage program concept 2 Processing concept 3 Electronic change concept 4 All Ans: 1 7. IC chips was used in- 1 First generation 2 Second generation 3 Third Generation 4 Fourth generation Ans: 3 8. VLIC (Very Large Integration Circuit) technology was used in which generation ? 1 First generation 2 Second generation 3 Third generation 4 Fourth generation Ans: 4 9. Which electronic component was use in first generation? 1 Vacuum tubes 2 transistors 3 IC chips 4 all above Ans: 1 10. A source program is- 1 a program written in a machine language 2 a program to be translated into machine language 3 a machine language translation of a program 4 none of these  Ans: 2

Basic Knowledge About Information and communication technology(ICT): Fundamentals: Byte is a combination of Eight bits. A standard keyboard has a total of 104 keys. Combination of four bits is Nibble A Command is a kind of coded message. Word is the combination of two or more than two bytes. Binary code is a term which describes a way of counting. A, Binary digit, or bit for short is a number. It is either or. Data is a plural word which means facts or information. A Floppy disk is a part of a computer and it stores data and programes. A Hard disk stores information inside some kinds of computer. Input is information which flows into a computer. A mouse is a part of Computer A random access memory (RAM) is a part of a Computer A read-only memory, or ROM for short, is a part of a Computer Software, programs and data that are used by Computers A general collection of data shared by a variety of users is Database Firmware is defined as software embedded into the hardware. A Keyboard is a part of a computer; it has rows of buttons, called keys. Logic is a set of rules which controls the way in which computers work. A Laser is a device which produces a beam of very bright and powerful light. A Byte is a number, it carries instructions or information inside computers. A Mainframe computer is the largest and most powerful kind of computer. A Megabyte is a unit of measurement which measures an amount of data or the size of the memory in a computer. A Modem is a part of computers which connects a computer to a telephone line. A postprocessor is a Computer which uses a special kind of program. Words are typed on a keyboard and they appear on the screen of a visual display unit. A programme which converts assembly language programme into Machine language programme. Zero and one in their endless combination constitute binary I system on which Computers are based. Bit is the basic unit of Inverters. It can have two values one and zero only. Boolean algebra was developed to deal with binary numbers. Under the binary system all ordinary Arithmetical operations are reduced to their simplest form. Compiler is a programme which translates a high-level language programme into Machine language. The term given to the machinery itself and to me various individual pieces of equipment is Hardware. A set of instructions given to the computer in a particular sequence for solving a given problem is Programme. A collection of programmes writ- ten to bring the hardware of a computer system into operation is Software. The Operating system is an organised collection of routines and procedures for operating a computer. Time Sharing is the concurrent use of a single computer system by Many independent users. A central processing (pit (CPU), is a part of a Computer, it uses a program to change data that pass through it. A Computer is an electronic machine which can solve problems very quickly. Hard copy is the information which is printed onto paper. The information usually comes from a computer or from a fax machine. A Kilobyte is a unit of measurement which measures an amount of data or the size of the memory in a computer. Web Related: The ARPANET was shut down in 1990 The WWW uses the HTTP protocol. In the URL:// www.google.co.in/, http part denotes the protocol A website is a collection of HTML Pages, Graphic files, Audio and Video files. DARPA stands for Defense Advanced Research project. In the URL http://www.google.com/, www.google.com part denotes the path of the website. A Gateway is a device that helps connect networks that are using different protocols. TCP/IP stands for Transmission Control Protocol/Internet Protocol. Some popular ISPs of India are Tata Communication Ltd., MTNL, Airtel. Internet Architecture Board, Internet Engineering Task Force, Inter NIC are the main organization that play crucial role in the management of the Internet. Web browser software runs on a user’s computer and is used to make a request for and display information in the form of a Web page. Digital information is converted into a analog information by the modern at Source computer Exchange Information with friends and colleagues, Access picture, sounds video clips and other media elements, Find diverse perspective on issue from a global audience.activities can you perform on the internet. J.C.R Licklider was the first person to propose the development of a global network of computer. The ARAPNET project was sponsored by The US department of defense. J.C.R Licklider proposed the development of a global network of computers in 1962 An Internet Backbone is the point where one or more network is connected. A Gateway is a network point that acts as an entrance for another network. The first network was ARPANET TCP/IP of the following is a protocol suite for the Internet. The Combination of multimedia and hyperlinks is known as Hypertext. ARPANET stands for Advanced Research Project Agency Network ARPANET was introduced in 1969. Network + internet NSFnet was development by NSF in 1985-86. TCP/IP is responsible for Sending and receiving information from one computer to another and Breaking the information into data packets. An application that can access and render www content is known as Web browser. IRC protocols enable you to exchange text message among users on the Internet. Another name for the Web is www. POP protocol is used for text and binary files that are arranged in a menu structure. Identifies the domain name in the http://www.yahoo.com URL yahoo. ISP stands for Internet service Provider. You can subscribe for an Internet connection to an ISP. LAN of the following is not a method of connecting to the Internet. PSTN stands for Public Switched Telephone Network. A dial-up connection is established with the help of a Modern. A Dial-up connection is a temporary connection that uses the public switched telephone network (PSTN) to connect to the Internet. TCP part of eh TCP/IP protocol is used to divide a message into packets at the source computer. Com domain extension specifies a commercial website. Types of network are the main components of a URL Protocol. Mozilla Firefox is a Web Browser. Lynx is an example of a text-based browser, which provides access to the Internet in the text-only mode. When you place the mouse pointer on a hyperlink the shape of the mouse pointer change to a Hand. IAB refers to the Advisory group that is responsible for the technical aspects o the Internet. IETF stands for Internet Engineering Task Force. IETF is responsible for developing and promoting Internet standards: Registration services to the Internet community are provided by InterNIC. There are 5 types of web browsers. Database Related Knowledge In a flat-file database, all the data is stored in a single table in a Sequential manner. The duplication of data is known as data Redundancy. A primary key cell does not contain NULL value. A foreign key is a reference of the Primary key in another table. A query is used to retrieve Specific data from a table. In a table, column represents to a Field. Data redundancy means duplication of Data. In a database, a Form helps in viewing, adding and editing data. In a database, a relationship is developed on the basis of Common fields. Different and conflicting version of the same data appearing in different place is known as Data inconsistency. In a table, a row is also known as a Record. A Report allows you to represent data retrieved from one or more tables so that it can be analyzed and printed, if required. In a database, you can retrieve particular records by using a Query. In DBMS, sharing of data means that the data in the database can be used by multiple users. The full form of RDBMS is Relational Database management System. You can add one record at a time by using the Form element of a database.