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khaki EXPECTED ESTIONS MATHEMATICS It the sum of 20% and 30% of a number is 250. Find the 75% of that number? (a) 864 (b) 846 (c) 468 (d) 486 Nl0x'15 = (a) 6N5 (b) 5-v6 (c)N 30 (d) 50 If 3 books are sold for the cost of 4 books then the percentage of irofit is (b) 304% (a) 25% ( (c) :134%

(d) 26-%

A certain sum of simple interest doubles itself in 10 years in how many years of will become 4 times (a) 20 (h) 30 (c) 40 (d) 50 The area of the largest circle that ('an be drawn inside a rectangle , with sides cm by 14 cm is (b) 108 cm (a) 308 cm(c) 154 cm (d) 216 cm2 the size of a brick is 6xl2x24 cm. What is the minimum number of bricks to be used to construct a perfect cube? (d) 12 (a) 4 (b) 6 (c) 8 Find the value of p, if p+q =7, 3p-2 q =11 (a) 2 (b) 6 (c) 5 (d) 7 The average of nine consecutive numbers is 20, the highest of

these numbers is ofx is (a) 16 (h) 18 (c) 36 (d) 24 (b) 160 9. What is 21)% of a number, whose (a) 200% is 360? 1443 (a) 72(b) 36 (c) 52 (d) 144 (d) 169 (c) 10. 110w many (lays are there from 9 15th January 2001 to May 15 17. The wheel of a motor car makes 2001?(Both days including) 1000 revolutions in moving 44Gm (a) 120 (b) 121 (c) 122 (d) 123 The diameter of the wheel is 11. A train running at a speed of (b) 0.14 m (a) 0.44 m 72 km/hr crosses a signal post in (c) 0.24 m (d) 0,34 nt 6 seconds. What is the length of train? 18. The sides of a triangle are in the (b) 90 m (a) 144 m ratio 2:3:4. The perimeter of the (d) 120 m (c) 110 to triangle is 18cm. The area of the12. The price of a commodity rises triangle is from e6 per kg to c7.50 per kg. 9cm2 if the expenditure can't increas36cm2 es, the percentage of reduction : cm2 (c) in consumption is? a) 15 (h) 20 (0) 25 (d) 30 (d) 3Tj cm2 13. Walking at 5 km/hr a student 10. lfr:y = 4:5 then (%r+y): (5.r+3y)= reaches hissehool from his house 3:5 15 minutes early and walking at 5:3 . 3km/hr he is late by 9 minutes. 17:35 What is the distance between his school and his house? 35:17 (b) 8km (a) 5km i20. When 233 is divided by 10, the (d) 2km (c) 3km remainder will be 14. A sum of 12,000/- deposited at (b) 3 (a) 2 compound interest become dou(d) 8 (c) 4 ble after S yeam. After 20 years it will become (a) c48,000 (b) 96,O00 ANSWERS (d) 1,92,000 1(d) (c) 1,90,000 __________ 15. if NO.3 xO.3xa = 0.3 x 0.3 A. 20%+30% = 50% = 324 1% = 324 then the value of a/b is 50 (a) 0.009 (b) 0.03 (d) 0.08 (c) 0.09 '% = 324 x75 50 then the value 16. It' 'Ji+.j_ = 162x1486

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Januai l5-Januai 31 17 days February =28 days March =31 days April =30 (lays May =15 days 121 days

= = 3. (c) Profit percentage = 33 1% : fl () 100 = 1 100 72kns/hr=77s 5 =2Gm/s 1 3 3

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169

.i 169 x - 160 99 x=160 17. b Distance covered bywhel s one hour equal to the circursiferanci' of wheel 2nrxn=440 2x 22 xrxl000=440

4.(b) Length= 20x6=120in Years = 10(4-i) = 10x3 = 30 12. b Increase percentage in expenditure 5. (c) The diameter of the circle is 14, = 7.50-6 xlOO= 25% 6 therefore its radius is 7 percent reduction in expenditure x 7x7 = 154cm2 Area = nr2 = 22 r= 7x440 =0.07nit 7 25 x1OO= 20% , 2x22x 1000 125 6.(c) Diameter of wheel= 2r Side of the Cube is the LCM of 13. c =2407=0 l41nt Let the distnce hetween school 6, 12, 24, is 24. 18. d and house be,r km Volume of Cube = 24x24x24 The ratio of sides of trian1e 2:3:4 .r x 15+9 Volunie of one brick = 6x12x24 .4f Perimeter= 18cm Number of bricks = 24x24x24 '- _24 Half perimeter= 4+6+8 6x12x24 =8 15 - 60 Areaof triangle 7(c) Zx 24 p+q = 7 .........(1) =s's(s-a)(s-b)(s-c) - 60 3p - 2q =11 ....... (2) =9-4)(9.6)(9-8) 4_3 From eq. (1), q = 7-P 2x60 Putting the value in the eq. (2) = = 5cni = 14. d \Ve get 3p -2 (7_p) = 11 Sum would be 16 times after 20 19. C - 14.2p = 11 !x=4,y=5 years 12000x16= 1,92,000 Sp = 11+14 = 25, p 5 y 5 8. (d) 15.c : ±L 3x4+5 0.3x0.3xa=(0.3x0.3xJ) The numbers are 16, 17, 18, 19, 5x4+3x5 35 ö, -+'i 20,21,22,23,24 0.Gxa= (0.09xb 20. a highest number is 24 a 2"- power of 2 is odd 009 9. (b) b = - ' 2'= 2 which is smaller han 10 200% = 360, 100% = 180 16.b 2= 8 which is smaller Jhan 10 20 : 180 x = 36 \jT_ 13 100 2= 32 gives as remainder 2 when .. h divided by 10

INFORMATION TECHNOLOth AND CYBER LAWS 1 M.K. Gupthan

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Charles Babbage - Father of Computer (He invented the first Computer, 'Mechanical Difference Engine and Analytical Engine'). Claude Shanon - Father of Information Technolov Eugene Paul Curtis . Father of Binary Code. * Binary numbers were first described in Chandashutram written by Pingala in 100BC The first Mechanical Adding Machine was invented by Blaise Pascal Augusta Ada Byron (Ada Lovelace) - World's first Computer Programmer. Alan Turing - Father of Computer Science. ,John McCarthy - Father of Artificial intelligence. Father of Free Software Movement - Richard Stailman Ralph Baer is known as the Father of Video Games. The invention of the slide rule is attributed to -William Oughtred Van Neumann designed the first electronic computer. ENIAC Douglas Engelbart - Father of Computer Mouse * John Vincent- Father of Electronic Digital Computer. John Von Neumann is -Theoretical father of computer virologr. • The Czech writer Karcl Capek coined the term 'Robot' in his play Rossum's Universal Robots. Seymour Cray is known as the

iiiark reader, Bar code reader, Father of Super computer. Keyboard Optical character Dr.S'ijay P. Bhatkar is known as the reader, QR reader etc are Father of Indian Super computer examples for input devices. Rajiv Gandhi - Father of Indian Printer, Monitor, Projector, Plotter, Information Technolo'. Speakers etc are examples for Shakaintala Devi is known as human Output devices. computer (Famous book of Modem, Network card, Touch Shakuntala Devi- Joy of Screen etc are examples for input Numbers). &swell as Output devices. Mathematics employed in computer is called Boolean Types of Booting-Cold, Wanu Various types of Memory and Algebra Storage devices. The Advanced Research Projects Agency Network (ARPANET, the RAM, ROM, HDD, ODD, FDD etc initiative of US Defence Error in software is known as Bug, Departnient)was the world's first The process of eliminating errors in programs is called Debugglag. operational packet switching The memory unit stores all network and the forerunner of instructions and data forthe CPU. global internet. Itismainlyclassified into Primary The Gopher protocol is TCP/IP memory and Secondary memory. application layer protocol Primary memory is known as the designed for distributing, main memory. It is cla.ssified into searching, and retrieving RAM (Random Access Memory) documents over the internet. and ROM (Read Only Memory). Central Processing Unit (CPU) is RAM is a volatile memory and called the brain of a computer. ROM is a non-volatile memory. The Arithmetic logic unit (ALU) PROM (Programmable Read Only and the control unit (CU) are the Memory), EPROM (Erasable two typical components ofa CPU. Programmable Read Only (ALU performs arithmetic and logical Memory), EEPROM (Electrically operations. CU extracts Erasable Programmable Read instructions from memory and Only Memory) are the 3 decodes and executes them, categories of ROM. calling on the ALU when Secondary memory is known as the necessary.) external memory. Flash drives, The speed at which a Magnetic tape, Floppy disk, executes microprocessor Optical disk, Hard disk etc. are instructions is called clock speed examples for secondary memoy it is expressed in megahertz Cyber Crime is unlawful acts where (Mhz) or gigahertz (GHz) in the computer is either a tool or Mouse, Web Camera, Light pen, a target or both. We can Magnetic ink character Reader, categorize cyber crime in two Scanner, Microphone, Optical

ways. The Computer as a target. using a computer to attack other computers eg. Hacking. Virus/worm attacks, DOS attack ,Spamniing, Spooling, Phishing etc. The computer as a weapon, using a computer to commit real world crimes. eg. Cyber Terrorism, IPR Violations, Credit card frauds, EFT frauds, Pornography etc. Cyber crime regulated by Cyber Laws or Internet Laws. Mozilla Firefox ,Google Chronic, Opera, Safari, Internet Explorer. Epic (Indian Browser), Torch Maxthon, Sea Monkey, Avant Browser, Deepnet Explorer, Zen mate, Netscape Browser, KMeleon, Comodo Dragon, Flying Fish etc are examples for browsers (The softwares used for viewingwebsites). 1 PB (Peta Byte) 1024 TB lTBeraByte) - 1024GB 1GB(GigaByte) -1024MB 1MB (MegaByte) - 1024 KB 1 KB(KiloByte) -1024Byte . 8bits 1 Byte lNibble - 4bits

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*

The logo of Linux-a Penguin named Thx Ubumstu

(Named after the Southern African philosophy of ubuntu translated as 'humanity towards others') is a Debianbased Linux operating system a ['nix-like computer GNU operating system developed by the GNU Project. It is composed

of free softisare. It based on the GNU Hurd kernel and is intended to be a 'complete softwars' Unix-compatible wholls

The number of functional keys in a keyboard. -12 * The top most bar in anyapplication which displays window is the the name of the document er application. -Title bar When the mouse pointer is it is positioned on a shaped like ahaiid. -Hyperlink * The pictorial representation of a program or algorithm is called,......,,,,,,. -Flow Chart ___________ are capable of capturing video and transfer it directly to the computer. -Webcanss ________ is the set of programs necessary to carry out operations for a specified application. -Application Software World Computer Security Day is celebrated on -November30 * World Computer Literacy Day is celebrated on -Dec ember 2. is the process of dividing the disk into tracks & sectors. -Formatting are a bundle of exclusive rights over creations of the mind, both artistic and commercial.

ssstern.WW. is recursive acronym for "GNU'sNofb'ni.r!'. Richard Stallman is the founder of the GNU project

-Intellectual Property Rights * The attempt toacquire information such as usernanles, passwords, and credit card details by maquerading as a trustworthy entity in an electronic communicated is termed. -Phishing In cyber law ternibuOogr 'DoS' means -Denial of service ___________ is characterized by abusers repeatedly snding an identical email messkge to a particular address. -E-mail Bombing By hacking web sever taking control on another perstns website called as web -Hijacking The use of the interiet or other electronic means to stalk or harass an individual, a group of individuals, or an organization is termed. -Cytier stalking A.sian School of Cyber Laws is at -Pune The first Bank to get Online Banking facility is -HDFC is the first bankstartedits Malayalam website. -SBT The explicit portrayal of sexual subject matter is termed. -Pornography