7/11/2018 SRI CHAITANYA OLYMPIAD SCHOOL JUBILEEHILLS GRADE-7 COMPUTERS CLASS WORK

Transcription

1 7/11/2018 SRI CHAITANYA OLYMPIAD SCHOOL JUBILEEHILLS GRADE-7 COMPUTERS CLASS WORK

2 CHAPTER-1 1. WEB CONCEPTS I FILL IN THE BLANKS 1. G-MAIL, YAHOO MAIL, HOTMAIL 2. INSTANT MESSAGING 3. CHATTING 4. SOCIAL NETWORKING 5. VIDEO CONFERENCING 6. BLOG 7. E-COMMERCE II ABBREVIATIONS 1. B2B: BUSINESS TO BUSINESS 2. C2C: CONSUMER TO CONSUMER 3. B2C: BUSINESS TO CONSUMER 4. B2G: BUSINESS TO GOVERNMENT

3 III TRUE OR FASLSE: 1. F 2. F 3. F 4. T 5. T IV IDENTIFY THE FOLLOWING PICTURES: SOCIAL NETWORKING INSTANT MESSAGING SOCIAL NETWORKING INSTANT MESSAGING

4 V.ANSWER THE FOLLOWING QUESTIONS 1. WRITE THE FEATURES OF E-COMMERCE? ANS) NON-CASH PAYMENT 24X7 SERVICE ADVERTISING 2. DEFINE AN AND WRITE EXAMPLES? ANS) STANDS FOR ELECTRONIC MAIL. EVERY USER WILL HAVE UNIQUE E- MAIL FROM WHICH THEY SEND AND RECEIVE MESSAGES. EXAMPLES:

5 3. DEFINE SOCIAL NETWORKING? NAME POPULAR SOCIAL NETWORKING SITES? ANS) A USER CREATES A PROFILE AND GRANT ACESS TO THE SITE WHERE HE CAN VIEW AND CONNECT WITH THEM POPULAR SOCIAL NETWORKING SITES: ORKUT MYSPACE.COM FACEBOOK TWITTER LINKEDIN 4. DEFINE BLOG AND VIDEO CONFERENCING? ANS)

6 BLOG: A BLOG IS A REGULAR UPDATED WEBSIITE A BLOG MAY CONTAIN TEXT, IMAGES, AUDIO AND VIDEOS THE MESSAGES POSTED IN BLOG ARE CALLED BLOG POSTS BLOGS ARE PUBLIC AND IT CAN BE SEEN BY EVERYONE. EX: yousufvali.blogspot.in VIDEO CONFERENCING: CONDUCTING A MEETING BETWEEN TWO OR MORE PEOPLE WITH DIFFERENT LOCATIONS. EXAMPLES: FACETIME IMO WHATSAPP SKYPE GOOGLE DUO

7 CHAPTER-2 2. ADVANCED QBASIC PROGRAMMING I. BLANKS: 1. LOOP 2. INPUT 3. CONTROL 4. IF THEN ELSEIF 5. ARRAY 6. STRING 7. RIGHT II TRUE OR FALSE: 1. F 2. T 3. F 4. F 5. F 6. T

8 III. ANSWER THE FOLLOWING QUESTIONS? 1. DEFINE CONTTROL STATEMENTS AND EXPLAIN ANY TWO STATEMENTS? CONTROL STATEMENTS: THE STATEMENTS THAT ARE USED TO CONTROL FLOW OF A PROGRAM IS CALLED CONTROL STATEMENTS. IF THEN STATEMENT: IT EXECUTE SET OF INSTRUCTIONS IN THE IF BLOCK WHEN THE CONDITION IS TRUE. IF THEN ELSE STATEMENT: IT EXECUTE SET OF INSTRUCTIONS IN THE IF BLOCK WHEN THE CONDITION IS TRUE. IF THE GIVEN CONDITION IS FALSE THEN IT WILL EXECUTE SET OF INSTRUCTION IN THE ELESE BLOCK 2. EXPLAIN ABOUT LOOPS IN QBASIC? WHEN A SET OF INSTRUCTIONS ARE REPEATEDLY EXECUTED FOR

9 CERTAIN NUMBER OF TIMES IS CALLED LOOP. DIFFERENT TYPES OF LOOP IN Q BASIC 1. FOR NEXT 2. DO WHILE LOOP 3. WHILE WEND Q3. DEFINE ARRAY? WRITE SHORT NOTES ON TYPES OF ARRAY? ARRAY HOLD LIST OF VARIABLES OF SAME DATATYPE. ARRAYS ARE TWO TYPES ONE DIMENSIONAL ARRAY AND TWO DIMENSIONAL ARRAY ARRAY THAT USED TO STORE DATA IN A LINEAR FORM IS CALLED 1DIMENSIONAL ARRAY ARRAY THAT USED TO STORE DATA IN A TABUAR FORM IS CALLED 2DIMENSIONAL ARRAY

10 Q4. EXPLAIN LEFT$, RIGHT$, MID$ WITH EXAMPLES? LEFT$: THIS IS USED TO EXTRACT SPECIFIED NUMBER OF CHARACTERS FROM LEFTSIDE OF A STRING EX: MACHINE$= COMPUTER PRINT LEFT$(MACHINE$, 3) OUTPUT: COM RIGHT$: THIS IS USED TO EXTRACT SPECIFIED NUMBER OF CHARACTERS FROM RIGHTSIDE OF A STRING EX: MACHINE$= COMPUTER PRINT RIGHT$(MACHINE$, 3) OUTPUT: TER MID$: THIS IS USED TO EXTRACT MID PORTION OF CHARACTERS FROM THE STRING EX: MACHINE$= COMPUTER PRINT MID$(MACHINE$, 3,4) OUTPUT: MPUT

11 HERE, 3 DENOTES THE LOCATION FROM WHERE EXTRACTION SHOULD START AND 4 DENOTES NUMBER OF CHARACTERS SHOULD BE EXTRACTED CHAPTER-3 3. MS-ACCESS I. BLANKS: 1. DATABASE 2. INTER RELATED 3. CONCURENT 4. CREATE AND RETRIEVE II TRUE OR FALSE: 1. F 2. T 3. T 4. F 5. F

12 III.ANSWER THE FOLLOWING QUESTIONS 1. WHAT IS DBMS? WRITE FUNCTIONS OF DBMS? A) DBMS: DATABASE MANAGEMENT SYSTEM. FUNCTIONS OF DBMS: CONCURENCY SECURITY BACKUP & RECOVER Q2) WHAT IS MS-ACCESS? EXPLAIN ABOUT COMPONENTS? A) MS-ACCESS: IT IS USED TO CREATE, STORE AND RETRIEVE LARGE AMOUNT OF DATA MS-ACCESS COMPONENTS: TABLES QUERIES FORMS REPORTS

13 Q3) WRITE THE STEPS TO CREATE A TABLE USING DESIGN VIEW? A) STEP-1: RIGHT CLICK ON TABLE STEP-2: SELECT DESIGN VIEW STEP-3: ENTER THE FIELD NAMES AND DATATYPES STEP-4: RIGHT CLICK ON TABLE NAME AND SAVE. CHAPTER-4 4. NETWORK TOPOLOGY I.TRUE OR FALSE 1. F 2. T 3. T

14 II.QUESTION AND ANSWERS Q1) WHAT IS BLUETOOTH? ANS) THE BLUETOOTH TECHNOLOGY IS AN INBUILT TECHNOLOGY IN ELECTRONIC GADGET. IT ALLOWS US TO SHARE INFORMATION WIRELESSLY. Q2) EXPLAIN WIFI AND IT S ADVANTAGES? ANS) WIFI STANDS FOR WIRELESS FIDILITY. IT IS A POPULAR WIRELESS NETWORK.IT USES RADIO WAVES TECHNOLOGY AND PROVIDES HIGHSPEED WIRELESS INTERNET CONNECTION. ADVANTAGES OF WIFI: SHARE YOUR INTERNET ACCESS YOUR FILES STREAM VIDEO

15 Q3) WHAT IS WIRELESS TECHNOLOGY? ANS) IN WIRED NETWORK ONE NEEDS DIFFERENT TYPES OF CABLES.THE WIRELESS COMMUNICATION USES RADIO SIGNALS OR INFRARED SIGNALS. IT ALSO USES WIRELESS ADAPTOR WHICH WORKS LIKE ETHERNET ADAPTOR. NETWORK TOPOLOGY I.BLANKS 1. FULL MESH AND PARTIAL MESH 2. TOPOLOGY 3. BUS 4. TWISTED PAIR CABLES 5. BUS TOPOLOGY AND STAR TOPOLOGY II.TRUE OR FALSE 1. T 2. F 3. T 4. F 5. T

16 III.QUESTION AND ANSWERS Q1) WHAT IS TOPOLOGY? WRITE THE TYPES OF TOPOLOGY? ANS) TOPOLOGY REFERS TO THE ARRANGEMENT OF COMPUTERSCONNECTED ON A LAN NETWORK. TYPES OF TOPOLOGIS: 1. BUS TOPOLOGY 2. STAR TOPOLOGY 3. RING TOPOLOGY 4. MESH TOPOLOGY 5. TREE TOPOLOGY Q2) WRITE SHHORT NOTES ON BUS AND RING TOPOLOGY? ANS) BUS TOPOLOGY: IN THE BUS NETWORK TOPLOGY, EVERY WORKSTATION IS CONNECTED TO MAIN CABLE CALLED AS BUS. RING TOPOLOGY: IN THE RING TOPOLOGY,THE WORKSTATIONS ARE CONNECTED IN THE FORM OF RING WITH THE HELP OF TWISTED PAIR CABLES.

17 Q3) WHAT IS TREE TOPOLOGY? ANS) THE TREE NETWORK TOPOLOGY USES TWO OR MORE STAR NETWORKS CONNECTED TOGETHER. THE CENTRAL NETWORKS OF STAR NETWORK IS CONNECTED TO MAIN BUS. Q4) WRITE SHORT NOTES ABOUT MESH TOPOLOGIES? ANS) THE MESH NETWORK TOPOLOGY CONTAINS TWO TYPES: FULL AND PARTIAL MESH IN FULL MESH TOPOLOGY,EACH WORKSTATION IS CONNECTED DIRECTLY TO EACH OTHER IN PARTIAL MESH TOPOLOGY SOME WORKSTATIONS ARE CONNECTED TO ALL OTHERS.

18 OSI MODEL PAGE NO: 74 ACTIVITY ARRANGE THE OSI MODEL LAYERS IN SEQUENCE ORDER 1. PHYSICAL LAYER 2. DATALINK LAYER 3. NETWORK LAYER 4. TRANSPORT LAYER 5. SESSION LAYER 6. PRESENTATION LAYER 7. APPLICATION LAYER CHAPTER-5 5. WORKING WITH HTML I.BLANKS 1. HYPER TEXT MARKUP LANGUAGE 2. HEAD AND BODY 3. SIX 4. CENTER 5. LINE BREAK II.QUESTION AND ANSWERS

19 Q1) WHAT IS HTML? EXPLAIN STRUCTURE OF HTML DOCUMENT? ANS) HTML STANDS FOR HYPER TEXT MARKUP LANGUAGE. IT IS MADEUP OF TAGS THAT ARE USED AS INSTRUCTUIN TO TELL THE BROWSER WHAT SHOULD BE APPEAR ON A WEBPAGE STRUCTURE OF HTML: <HTML> <HEAD> <TITLE>. </TITLE> </HEAD> <BODY>.. </BODY> </HTML> Q2) EXPLAIN HTML ELEMENTS? ANS) ELEMENTS ARE USED TO CREATE STRUCTURE OF HTML DOCUMENTS. IT HELPS

20 THE BROWSER HOW TO PRESENT HT,L ELEMENTS ON WEBSITE. HTML ELEMENTS ARE OF TWO TYPES: 1. CONTAINER ELEMENT: THE ELEMENTS WHICH HAVE BOTH START AND ENDING TAGSCALLED CONTAINER ELEMENT EX: <HTML> </HTML> 2. EMPTY ELEMENT: THE ELEMENTS WHICH HAVE ONLY START AND DONOT HAVE END TAG ARE CALLED EMPTY ELEMENT. EX: <br>, <img> Q3) WHAT IS THE DIFFERENCE BETWEEN SUERSCRIPT AND SUBSCRIPT? ANS) SUPERSCRIPT: THE SUPERSCRIPT ELEMENT IS USED TO DISPLAY THE TEXT HALF ABOVE THE NORMAL LINE OF TEXT. SYNTAX: <SUP>..</SUP> SUBSCRIPT: IT DISPLAYS THE SPECIFIED TEXT BELOW THE BASELINE. SYNTAX: <SUB> </SUB>

21 CHAPTER-6 6. MORE ON HTML I.BLANKS 1. FONT COLOR 2. FONT FACE 3. MARQUEE 4. SCROLL LIST 5. <IMG> Q1) EXPLAIN ABOUT FONT ELEMENT? ANS) FONT ELEMENT IS USED TO CHANGE THE SIZE, COLOUR AND STYLE. THE FONT ELEMENT IS A CONTAINER ELEMENT IT HAS 3 ATTRIBUTES SIZE,COLOUR,FACE, TO USE THESE ATTRIBUTES WE CAN USE <FONT> TAG Q2) WRITE THE SYNTAX OF MARQUEE TAG ANS) THE MARQUEE TAG IS USED TO SCROLL A PIECE OF TEXT DISPLAYED HORIZONTALLY ON THE WEBPAGE. SYNTAX: <MARQUEE> </MARQUEE>

22 Q3) EXPLAIN ABOUT LIST ELEMENTS? ANS) THE LIST ELEMENTS ARE USED TO ORGANIZE WEBPAGES CREATING LIST ON A WEBPAGE IS SIMILAR TO INSERTING BULLETS AND NUMBERS HTML PROVIDES DIFFERENT TYPES OF LIST ELEMENTS THEY ARE: UN ORDERED LIST ORDERED LIST NESTED LIST CHAPTER-7 7. COMPUTER CODES I.BLANKS 1. FACE VALUE BASE BASE BASE-16

23 III. MULTIPLE CHOICE QUESTIONS 1. C 2. B 3. A 4. C 5. B 6. D PGNO-112 example FIND NUMBER, PLACE, FACE VALUE OF 1784 PLACE VALUE FACE VALUE NUMBERVALUE 1x x x x x100+ 8x10+ 4x =1784

24 1. WRITE THE NUMBER VALUE, PLACE VALUE AND FACE VALUE OF 7654 AND 1784 (7654) 10 PLACE VALUE FACE VALUE NUMBERVALUE 7X X X x10 o 7x100+ 6x100+ 5x10 4x =7654 (1784) 10 PLACE VALUE FACE VALUE NUMBERVALUE 1x x x x x100+ 8x10+ 4x = FIND THE BINARY EQUIVALENT NUMBER FROM (1110) 2 PLACE VALUE FACE VALUE x x x x =14

25 3. FIND THE OCTAL EQUIVALENT NUMBER FROM (3651) 8 PLACE VALUE FACE VALUE x x x x8 0 3x512+ 6x64+ 5x8+ 1x = FIND THE HEXA DECIMAL EQUIVALENT NUMBER FROM (B61A) 16 PLACE VALUE FACE VALUE B A 11X X X X X X256+ 1X16+ 10X =46618 HERE, IN HEXADECIMAL A=10, B=11, C=12, D=13, E=14, F=15

26 I. BLANKS 1. 2, ZERO 2. 8, ZERO 3. 16, ZERO CHAPTER-8 8. CODE CONVERSION