260 questions and answers with information technology ........ So, let's get started

259 questions and answers with information technology ........

So, let's get started






1) The smallest unit of information - data

2) The meaning of the word data - fact

3) Making data meaningful in special contexts - Information

4) Information = data + perspective + meaning

5) Associated with information distribution, processing and storage - information technology

6) ICT in Education Program - UNESCO

6) There are innumerable circuits inside the computer

6) Stores, analyzes and produces information - computer

9) Computer does important work - 4

10) Mono FM band was launched in 1947

11) Stereo FM band was introduced in 1970

12) Worldwide FM frequency 88.5-108.0 Hz

13) Broadcasting in Radio Communication System - 3 types

14) Full form of PAL - Phase Alternation by Line

15) There are 41 private channels in the country

16) The world's largest network - the Internet

16) Internet launched - with ARPANET (1989)

16) The US Department of Defense launched ARPANET

19) The term Internet was introduced in 1972

20) TCP / IP was introduced in ARPANET - in 1983

21) NSFNET was established in 1986

22) ARPANET was closed in 1990

23) The Internet was opened to all - in 1989

24) ISOC was established in 1992

25) About 5 crore 22 lakh (32%) internet users in Bangladesh

26) The experimental phase of the Internet 1989-1983

26) TV - One way communication system

26) Inventor of “Global Village” and “The Medium is the Message” - Marshall McLuhan (1911-1970)

29) The Gutenberg: The Making Typographic Man was published in 1962

30) Understanding Media was published in 1984

31. The foundation of Bishwagram - secure exchange of information

32. The backbone of the world - connectivity

33. Mathematical reasoning and decision making can be done with computer

34. The main source of knowledge in the world today - the website

35) Full form of EHR - Electronic Heath Records

36. Automating the overall activities of the office is called - Office Automation

37) IT + Entertainment = Xbox

38) IT + Telecommunication = iPod

39) IT + Consumer Electronics = Vaio

40) There will be artificial intelligence - 5th generation computer

41. Used to apply artificial intelligence - programming language

42. Robot components - Power System, Actuator, Sensor, Manipulation

43. Full form of PCB - Printed Circuit Board

44. Cold temperatures used to treat skin in 2500 BC - Egyptians

45. Napoleon's physician was Dominic J. Larry

46. ​​The first satellite sent into space - Sputnik-1

48. The first man arrives on the moon - July 20, 1989

46. ​​Full form of MRP - Manufacturing Resource Planning

49. UAV capable of flying 100 km. Until

50. Full form of GPS - Global Positioning System

51. Used in person identification - biometric method

52. Hand geometry reader can measure - 31000+ points

53. Iris detection method takes time - 10-15 seconds

54. The first use of the term bioinformatics is Paulien Hogeweg

55. Father of Bioinformatics - Margaret Oakley Dayhaff

57. A set of complete genes is called - genome

58. The first use of the word genetic engineering - Jack Williamson l

57. Recombinant DNA - Paul Berg (1972)

59. The world's first transgenic animal - rat (1974)

60. The world's first genetic engineering company - Genetech (1976).

61. The full form of GMO - Genetically Modified Organism

72. Atomic or molecular level working strategy - Nanotechnology

63. The formation of molecules can be seen - scanning tunneling microscope

64. Instructions of Computer Ethics Institute - 10

65. How to read blind without braille - Screen Magnification / Screen Reading Software

66. Basic elements of communication process - 5

67. Transmission speed is called - Bandwidth

68. Bandwidth is measured - in bps

69. Narrow band speed 45-300 bps

70. The speed of the voice band is 9600 bps

71. Broadband speed - 1 Mbps

72. Character by character transmission - asynchronous

73. 80-132 characters per block in synchronous transmission.

74. Data transmission mode - 3 types

75. On the one hand data transmission - simplex mode

76. Transmit data to both, but not simultaneously - half duplex mode

77. Simultaneous data transmission in both directions - full duplex mode

78. Cable is made by dielectric material

79. Co-axial cable speeds up to 200 Mbps

80. Twisted Pair Cable has 4 pairs

81. Fiber Optic- Transmits light signal

82. Microwave frequency range 300 MHz - 30 GHz

83. Artificial satellites originated in the 1950s

84. Geosynchronous Satellite was established in the 1980s

85. There are artificial satellites 36,000 km from the earth's surface. Up

86. Bluetooth range 10 -100 Meter

87. The full form of Wi-Fi - Wireless Fidelity

88. Wi-Fi speed - 54 Mbps

89. The term WiMax was introduced in 2001

90. Full form of WiMax - Worlwide Interoperability for Microwave Access

91.4th generation technology - WiMax

92. WiMax speed - 75 Mbps

93. FDMA = Frequency Division Multiple Access

94. CDMA = Code Division Multiple Access

95. The main part of the mobile - 3

96. SIM = Subscriber Identity Module

97. GSM = Global System for Mobile Communication

98. GSM was first named in 1972

99. GSM channels - 124 (200 KHz each)

100. Frequency used in GSM - 4 types

101. GSM is used in 216 countries

102. Applicable to GSM 3G

103. The average power consumption in GSM is 2 watts

104.CDMA Discovered by Qualcomm (1995)

105. The frequency range of radio waves is 10 KHz-1GHz

106. Radio wave speed 24Kbps

107. CDMA 3G was launched in 1999

108.CDMA provides data in spread spectrum

109.1G AMPS was launched in 1983 in North America

110. The first prepaid system was introduced in 2G

111. MMS and SMS are launched on 2G

112.3G was launched in 1992

113.3G bandwidth 2MHz

114.3G Mobile first used in Japan's NTT Docomo (2001)

The main feature of 115.4G is the use of IP based network

The speed of 116.4G is 50 times faster than 3G

The actual bandwidth of 116.4G is 10Mbps

118. There are two types of terminals

119. Geographically computer network - 4 types

120. PAN limited within 10 meters

121. Thomas Zimmerman gave the idea of ​​PAN

122. LAN is limited to 10 kilometers

123. Co-axial cable is used in LN

124. Cable TV Network - MAN

125. NIC = Network Interface Card

128. The number of bits in the code of NIC card is -48

128. There are two types of modems

128. Hub is a repeater with more than two ports

129. Renowned router company - Cisco

130. There are mainly 3 types of bridges

131. The point at which a PC is connected to a network is called a node.

132. Used in Office Management - Tree Topology

133. Started Cloud Computing Commercially - Amazon (2006)

134. Features of Cloud Computing - 3

135. Symbol of number system - Mathematics

138. There are two types of number system

138. Positional number system requires 3 data

136. Numbers are divided into integers and fractions by Radix Point

139. Full form of Bit - Binary Digit

140. The basic unit of digital computer - Bit

141. The simplest calculation method - binary method

142. Logic level of “O”: from 0 Volt to +0.8 Volt

143. Logic level of “1”: From +2 Volt to +5 Volt

144. Digital device works - in binary mode

The value of 145.n bit is 2 ^ n

148.BCD Code = Binary Coded Decimal Code

146.ASCII = American Standard Code for Information Interchange

146. Invented by ASCII - Robert Beamer (1985)

149. Number of bits in ASCII code - 6

150. EBCDIC = Extended Binary Coded Decimal Information Code

151. Unicode was invented by Apple and Xerox Corporation (1991).

152. Unicode bit number- 2 Byte

153. Unicode 1st 256 codes are similar to ASCII code

154. Unicode symbols - 85,536 (2 ^ 10)

155. Number of bits of ASCII - 1 Byte

156. Inventor of Boolean algebra - George Bully (1847)

157. Boolean Yoga is called Logical Addition

158. Adheres to Dual Principle - “and” and “OR”

159. There is one or more variables in Logic Function

160. Different values ​​of variable in Logic Function - Input

161. Value or Output of Logic Function - Output

162. Boolean theorem can be proved with truth table

163. Digital Electronic Circuit is - Logic Gate

164. Basic Logic Gate - 3 (OR, AND, NOT)

165. Public Gates - 2 (NAND, NOR)

166. Special gate- X-OR, X-NOR

167. Encoder has 2 2 n inputs to n outputs

168.Decoder gives 2 ^ n outputs from n inputs

169. Half Adder has Sum and Carry

170. Full Adder has 1 Sum and 2 Carry

171. A bunch of flip-flops is the registrar

172.Input pulse can count- Counter

173.Web page is created by HTML

174. Image file-. jpg / .jpeg / .bmp

175.Video file- .mov / .mpeg / mp4

176. Audio file-mp3

177. Used to beautify the website - .css

178. Currently on - IPV4

179. Requires IPV4 release - 32bit

180. Alphanumeric address of IP address- DNS

181. Controls domain names worldwide - InterNIC

182. Generic type domain - Top level domain

183. http = hyper text transfer protocol

184. URL = Uniform Resource Locator

155. Discovered HTML - Tim Berner Lee (1990)

186. W3C creates HTML

187. The main task of web design is to create templates

188. Programming language - 5 levels

189. Machine Language (1G) -1945

190. Assembling Language (2G) -1950

191. High Level Language (3G) -1960

192.Very High Level Language (4G) -1970

193.Natural Language (5G) -1980

194. Low level vaSha-1G, 2G

195. There are different symbolic addresses - at the level

196.C Language was created by Dennis Ritchie (1970).

197. C ++ by Bijarne Stroustrup (1970)

198. Visual Basic was last published in 1998

199. Designed by Java - Sun Micro System

200. AlGOL was invented in 1956

Fortran was created by John Bacas (1950).

201. Python was created by Guido van Rosam (1991).

Language of 203.4G - Intellect, SQL

202. Pseudo Code- Pseudo Code

203. Visual Programming- Event Driven

204.C Language comes from BCPL

205. Turbo C is made by Borland Company

Useful Header File in 206.C Language - stdio.h

Essential part of 209.C - main () Function

206. Supports ANSI C language - 4 classes of data

207. Keywords in ANCI C-47

208. Keywords in ANSI C ++ - 63

209. Database base field

210. Gives the idea of ​​Database Model - E.F.Codd (1970)

211. The most popular Query- Selec Query

212.SQL = Structured Query Language

213. Creating SQL - IBM (1984)

214.ERP = Enterprise Resource Planning

219. Bangladesh is connected to submarine cable - May 21, 2006

220.MIS = Management Information System

221. Fake mail submission location - Spam

222.CD = Compact Disk

223. MS Excel is Spreadsheet Software

224. Internet was introduced in Bangladesh in 1998

225. The world's first computer - ENIAC

226. Laptop first came in the market in 1971

227. ROM = Read Only Memory

228. Current Generation - 4G

229. The father of Twitter - Jack Dorsey

230 In MODEM - Modulator + Demodulator

231. UNIX is the operating system

232. CPU = Central Processing Unit

The first computer made with 233.IC - IBM360

234. 100% accuracy of digital computer

235.1st Programmer - Lady Augusta

237.1 Programming Language - ADA

236. Unnecessary information given on computer - Gibarish

236. Computer virus came in 1950

240. Name the computer virus - Fred Cohen

241. Mother of All Virus-CIH

242. VIRUS = Vital Information Resources Under Seize

243. The most difficult language for programming is machine language

244. NORTON - an antivirus

245. Murata Boy-Japanese Robot

246. 1nm = 10 ^ (- 9) m

247. Atom size of gold - 0.3nm

248. Isocronus transmission takes zero seconds

249. Core diameter of optical fiber - 8-10 microns

250.1 Wireless - Guglielimo Marconi (1901)

251. The first 3bit of ASCII-7 code is called a zone and the last 4bit is numeric

252. According to ASCII table,

0-3 & 127 = Control Character

32-64 = Special Character

65-96 = Capital Letters & Some Signs

97-127 = Small Letters & Some Signs

253. In the EBCDIC code-

0-9 = 1111

A-Z = 1100,1101,1110

Special Signs = 0100,0101,0110,0111

254. The EBCDIC code has 256 letters, symbols and numbers

255. EBCDIC code is used in IBM Mainframe Computer and Mini Computer.

256. Improves Unicode - Unicode Consortium

256. Insulators used to make fiber optic cables - Silicon Dioxide and Muli Component Glass (Soda Boro Silicet, NaOH Silicet etc.)

257. Isochronous is more used in Data Transfer of Real Time Application

258. Radio Wave's Data Transmission Speed ​​- 24 Kbps

259. The fastest version of Wifi - IEEE