CBSE COMPUTER SCIENCE

DO IT YOURSELF...👆

Python List functions with examples from : https://www.programiz.com/python-programming/list

CLASS TEST-04 (CT0804) Answer the following 01. What is Cloud Computing? (2M) 02. Public and Private Cloud Computing give examples for each(4M) 03. How IaaS differs from SaaS in cloud computing(4M) 04. What is PaaS service of cloud computing (2M) 05. Pros (Merits) and Cons (Demerits) of Cloud Computing(4M) 06. IoT (Network of Networks) give examples for IoT devices (2M) 07. IoT Cloud with example(2M) *********

It is purely based on my own concept...

you can do project based on above journal paper...

My article link is https://www.ijsr.net/search_index_results_paperid.php?id=ART20203991

For Learning online coding classes... https://whjr.co/EDRcr

CLASS TEST-03 (CT0803) Answer the following 01. What is wireless communication and list out various wireless media? (2M) 02. How Blue-Tooth differ from Wi-Fi? (2M) 03. What is the expansion of the following (2M) a) FM b) AM c) PM d) Wi-Fi 04. What is the characteristics of Infrared waves and Microwave? (4M) 05. Describe about advantages and disadvantages of Satellite Communication(4M) 06. What is the Roll of Server and Client in Client-Server architecture? (2M) 07. Advantages of Client-Server Architecture(4M) *********

CLASS TEST-02 (CT0802) Answer the following 01. Give expansions of the following. (4M) a) LAN b) MAN c) WAN d) PAN e) RJ45 f) STP g) UTP h) EMI 02. what is guided media and unguided media(2M) 03. Classification of Transmission Media with neat diagram(2M) 04. How LAN differs from PAN?(4M) 05. How MAN differs from WAN(4M) 06. Advantages and disadvantages of Coaxial Cable and Twisted Pair cable(4M) *********

Computer Science (Std : XII - CT0801) CLASS TEST-01 Answer the following (10 * 2 =20) 01. What is Computer Network. 02. Advantage of Resource Sharing 03. How to reduce communication cost? 04. Difference between Workstation and Server. 05. What is the function of NIC? 06. What is the purpose MAC Address? 07. What is Domain Name? 08. List out Components of Computer Network. 09. What is the role of Sender and Receiver? 10. What is Transmission Medium and Protocols? *********

COMPUTER NETWORKS-I

110 LLL Low Level Language 111 LPT Line Printer 112 MAC Media Access Control 113 MAN Metropolitan Area Network 114 MB Motherboard/ Megabyte 115 MBASIC Microsoft BASIC (Microsoft) 116 MBPS Megabytes Per Second 117 Mbps Megabits Per Second 118 MICR Magnetic Ink Character Recognition 119 MMX Multimedia Extensions 120 MODEM Modulator Demodulator 121 MSCDEX Microsoft Compact Disc Extension 122 MS-DOS Microsoft – Disk Operating System 123 NAT Network Address Translation 124 NTP Network Time Protocol 125 OCR Optical Character Reader 126 OMR Optical Mark Reader 127 OOP Object Oriented Programming 128 OS Operating System 129 P2P Point to Point Protocol 130 PAN Personal Area Network 131 PC Personal Computer 132 PCB Printer Circuit Board 133 PCI Peripheral Component Interconnect 134 PHP Hypertext Preprocessor 135 PIXEL Picture Element 136 PNG Portable Network Graphics 137 PPP Point to Point Protocol 138 PRN Printer 139 PROM Programmable Read Only Memory 140 RAM Random Access Memory 141 RARP Reverse Address Resolution Protocol 142 RDBMS Relational Data Base Management System 143 RIP Routing Information Protocol 144 RISC Reduced Instruction Set Computer 145 ROM Read Only Memory 146 SAM Software Asset Management 147 SAN Storage Area Network 148 SCSI Small Computer System Interface 149 SDRAM Synchronous Dynamic Random Access Memory 150 SFTP Secure File Transfer Protocol 151 SGML Standard Generalized Markup Language 152 SGRAM Synchronous Graphics RAM 153 SIP Session Initiation Protocol 154 SIU Serial Interface Unit 155 SMTP Simple Mail Transfer Protocol 156 SNAP Sub Network Access Protocol 157 SNMP Simple Network Management Protocol 158 SRAM Static Random Access Memory 159 SYSOP System Operator 160 TCP Transmission Control Protocol 161 UI User Interface 162 URL Uniform Resource Locator 163 USB Universal Serial Bus 164 VCD Video Compact Disk 165 VDU Visual Display Unit 166 VIRUS Vital Information Resource Under Siege 167 VRAM Video Random Access Memory 169 VxD Virtual Extended Driver 170 WAN Wide Area Network 171 WAP Wireless Application Protocol 172 WBMP Wireless Bitmap Image 173 WIFI Wireless fidelity 174 WLAN Wireless Local Area Network 175 WML Wireless Markup Language 176 WWW World Wide Web 178 XGA Extended Graphics Array 179 XHTML Extensible Hyper Text Markup Language 180 XMF Extensible Music File 181 XML Extensible Markup Language 182 XMS Extended Memory Specification 183 FORTRAN Formula Translation

S. No. Computer Abbreviation Full Form 1 AAC Advanced Audio Coding 2 ABR Average Bit Rate 3 ADSL Asymmetric Digital Subscriber Line 4 AGP Advanced Graphics Port 5 AI Artificial Intelligence 6 AIM AOL Instant Messenger 7 ALGOL Algorithmic Language 8 ALU Arithmetic Logic Unit 9 AOL America Online 10 AMD Advanced Micro Devices 11 API Application Program Interface 12 APT Automatically Programmed Tooling 13 ARP Address Resolution Protocol 14 ARPANET Advanced Research Projects Agency Network 15 ARQ Automatic Repeat Request 16 AS Autonomous System 17 ASCII American Standard Code for Information Interchange 18 ASP Active Server Pages 19 ASPI Advanced SCSI Programming Interface 20 ATA Advanced Technology Attachment 21 ATDT Attention Dial Tone 22 AUI Attachment Unit Interface 23 AUTOEXEC Autoexec Automatic Execution file 24 AVI Audio Video Interleave 25 BASIC Beginner’s All-purpose Symbolic Instruction Code 26 BCC Blind Carbon Copy 27 BCD Binary Coded Decimal 28 BCR Bar Code Reader 29 BDSL Broadband DSL 30 BEDO Burst Extended Data Out (RAM) 31 BGP Border Gateway Protocol 32 BHTML Broadcast Hyper Text Markup Language 33 BIOS Basic Input Output System 34 BIPS Billion Instruction Per Second 35 BIU Bus Interface Unit 36 BMP Bitmap 37 BRD Blu-Ray Disc 38 CC Carbon Copy 39 CD Compact Disk 40 CD-R Compact Disk – Recordable 41 CDROM Compact Disk Read Only Memory 42 CDRW Compact Disk Rewritable 43 CD-WO Compact Disk – Write Once 44 CD-XA Compact Disk – Extended Architecture 45 CGI-BIN Common Gateway Interface – Binary (programming for Web forms) 46 CIS CompuServe Information Service 47 CISC Complex Instructions Set Computers 48 CMD Command 49 CMYK Cyan-Magenta-Yellow-Black (color model) 50 CNM Circulatory Network Mode 51 COAX Coaxial Cable (for Ethernet and similar networks) 52 COBOL Common Business Oriented Language 53 COMPUTER Commonly Operated Machine Particularly Used for Trade/Technology, Education, and Research. 54 CPI Clock / Cycle Per Instruction 55 CPU Central Processing Unit 56 CROM Computerized Range of Motion 57 CRT Cathode Ray Tube( standard type computer monitor display 58 CSLIP Compressed Serial Line Interface Protocol (Internet) 59 CSS Cascading Style Sheets 60 CTRL Control (computer keyboard key) 61 CUI Character User Interface 62 DAC Data Acquisition and Control 63 DAT Digital Audio Tape 64 dB Decibel 65 DBMS Data Base Management System 66 DDL Data Definition Language 67 DHTML Dynamics Hyper Text Markup Language 68 DML Data Manipulation Language 69 DNS Domain Name System 70 DOC Data Optimizing Computer 71 Doc Document 72 DOS Disk Operating System 73 DRAM Dynamic Random Access Memory 74 DVD Digital Video/Versatile Disc 75 DVDR Digital Versatile Disk Recordable 76 DVDRW Digital Versatile Disk Rewritable 77 DCE Data Communications Equipment 78 DVI Digital Visual Interface 79 DVR Digital Video Recorder 80 E-Commerce Electronic Commerce 81 EDC Electronic Digital Computer 82 EDI Electronic Data Interchange 83 EDP Electronic Data Processing 84 EEPROM Electronically Erasable Programmable Read Only Memory 85 EFS Encrypted File System 86 EIDE Enhanced Integrated Drive Electronics 87 E-Mail Electronic Mail 88 EPROM Erasable Programmable Read Only Memory 89 EROM Erasable Read Only Memory 90 FDD Floppy Disk Drive 91 GB Giga Byte 92 GDI Graphical Device Interface 93 GUI Graphical User Interface 94 HD Hard Disk 95 HTML Hyper Text Markup Language 96 HTTP Hyper Text Transfer Protocol 97 I/O Input/Output (serial and parallel ports) 98 IC Integrated Circuit 99 IMAP Internet Message Access Protocol 100 INTEL Integrated Electronics 101 IOP Input Output Processor 102 IP Internet Protocol 103 ISDN Integrated Services Digital Network 104 ISP Internet Service Provider 105 IVR Interactive Voice Response 106 KB KILOBYTE 107 Kbps Kilobits/Kilobytes Per Second 108 LAN Local Area Network 109 LED Light Emitting Diode

Computer Abbreviations

#Program to create a binary file to store Rollno and name #Search for Rollno and display record if found #otherwise "Roll no. not found" import pickle student=[] f=open('student.dat','wb') ans='y' while ans.lower()=='y': roll = int(input("Enter Roll Number :")) name = input("Enter Name :") marks = int(input("Enter Marks :")) student.append([roll,name,marks]) ans=input("Add More ?(Y)") pickle.dump(student,f) f.close() f=open('student.dat','rb+') student=[] while True: try: student = pickle.load(f) except EOFError: break ans='y' while ans.lower()=='y': found=False r = int(input("Enter Roll number to update :")) for s in student: if s[0]==r: print("## Name is :",s[1], " ##") print("## Current Marks is :",s[2]," ##") m = int(input("Enter new marks :")) s[2]=m print("## After Updating the Mark is ",s[2]," ##") found=True break if not found: print("####Sorry! Roll number not found ####") ans=input("Update more ?(Y) :") f.close()

#Program to create a binary file to store Rollno and name #Search for Rollno and display record if found #otherwise "Roll no. not found" import pickle student=[] #Binary file opened as Append and Write Mode f=open('student.dat','wb') ans='y' while ans.lower()=='y': roll = int(input("Enter Roll Number :")) name = input("Enter Name :") student.append([roll,name]) ans=input("Add More ?(Y)") pickle.dump(student,f) f.close() #Binary file opened as Read Mode f=open('student.dat','rb') student=[] while True: try: student = pickle.load(f) except EOFError: break ans='y' while ans.lower()=='y': found=False r = int(input("Enter Roll number to search :")) for s in student: if s[0]==r: print("## Name is :",s[1], " ##") found=True break if not found: print("####Sorry! Roll number not found ####") ans=input("Search more ?(Y) :") f.close()

#Program to read content of file #and display total number of vowels, consonants, lowercase and uppercase characters f = open("file1.txt") v=0 c=0 u=0 l=0 o=0 data = f.read() vowels=['a','e','i','o','u'] for ch in data: if ch.isalpha(): if ch.lower() in vowels: v+=1 else: c+=1 if ch.isupper(): u+=1 elif ch.islower(): l+=1 elif ch!=' ' and ch!='\n': o+=1 print("Total Vowels in file :",v) print("Total Consonants in file n :",c) print("Total Capital letters in file :",u) print("Total Small letters in file :",l) print("Total Other than letters :",o) f.close()