Cambridge IGCSE and O level Computer Science, 2nd Edition by David Watson, Helen Williams PDF free download

Topics: Digital Logic Circuit Analysis, Digital Logic Circuit Design, computing, digital systems, number systems, positional notation, arithmetic, binary arithmetic, octal arithmetic, hexadecimal arithmetic, base conversions, signed number representation, computer codes, numeric codes, error detection codes, correction codes, Boolean algebra, Venn diagram, Duality, switching functions, truth tables, switching circuits, electronic logic gates, combinational circuits, algebraic methods, combinational logic circuits, computer aided design, design cycle, digital circuit modelling, design synthesis, logic simulation, Karnaugh maps, Quine-McCluskey tabular minimization method, Petrick's algorithm, computer aided minimization of switching functions. Modular combinational logic, Decodes, encoders, decoder circuit structures, encoders, multiplexers, demultiplexers, data distributors, adder circuits, comparators, semi custom logic devices, logic array circuits, field-programmable logic arrays, programmable read-only memory, programmable array logic, sequential devices, sequential circuits, memory devices, latches, flip-flops, timing circuits, modular sequential logic shift registers, counters, serial adder unit, serial accumulators, parallel accumulators, multiple-sequence counters, digital fractional rate multipliers, synchronous sequential circuit models, synchronous sequential circuits, registered programmable logic device, programmable gate arrays, sequential circuit design, logic circuit testing, digital logic circuit testing, combinational logic circuit testing, sequential logic circuit testing, electronic slot machine, keyless auto entry system

Topics: Database Systems, database environment, database languages, data definition language, data models conceptual modeling, database architectures, Multi-user DBMS Architectures, teleprocessing, Distributed DBMSs, data warehousing, cloud computing, Oracle Architecture, relational models, relational calculus, SQL, writing SQL commands, data manipulation, advanced SQL, object-relational DBMs, Database System Development Lifecycle, database analysis, database design, database planning, Entity–Relationship Modeling, Enhanced Entity–Relationship Modeling, normalization, Data Redundancy, Advanced Normalization, database security, data administration, database administration, concurrency control, database recovery, query processing, query optimization, distributed DBMs, Distributed Transaction Management, Distributed Concurrency Control, Distributed Deadlock Management, Distributed Database Recovery, data replication, data Replication Architecture, data Replication Schemes, object oriented DBMs, Scripting Languages, web, Common Gateway Interface, HTTP cookies, Microsoft’s Web Platform, JAVA, Oracle Internet Platform, Semi structured Data, XML, XML schema, XML Query Languages, Data Warehouse Architecture, Data Warehousing Tools, Data Warehousing Technologies, Data Warehousing Using Oracle, data mart, Data Warehousing Design, Online Analytical Processing, data mining, oracle data mining

Topics: Programming, computer programming, computer languages, programming process, compilation, coding, debugging, syntax, Programming languages, low-Programming languages, high-Programming languages, Modular Programming Languages, Structured Programming Language, Business Oriented Language, Object oriented programming language, Visual Programming Languages, Algorithm, Problem-Solving, Problem Solving Process, Algorithmic Problem Solving, Pseudo-Codes, Pseudocode, Flowcharts, Flowchart Symbols, Flowcharting, Programming Environment, flowchart, Variables, Reserved Words, operators, Data Types, functions, Data Type, Numbers Manipulation, character manipulation, String Manipulation, Decision-Making, Loops, Conditional Statements, arrays, Computer Files, file input, file output, File Operation Modes

Topics: Cybersecurity, computers, network, computer networks, internet, internet protocols, internet infrastructure, cyberattacks, denial of service, distributed denial of service, man-in-the-middle attacks, cryptojacking, SQL injection, spamming, cyberterrorism, digital property misappropriation, zero-day exploitation, phishing, digital vandalism, cyberstalking, cyber frauds, cyber forgery, Equifax data theft, VPNfilter cyberattack, Wannacry ransom attack, peta cyberattack, US Election manipulation, power grid hacking, shadow network attack, GitHub DDos attack, under armor account hacking, computer malware, virus, trojan horse, rootkit, spyware, worms, adware, scareware, browser hijacker, computer firewall, antivirus software, anti-spyware software, anti-spam software, security updates, social engineering attack, password management, intrusion detection systems, multi-factor authentication, secure sockets layer, virtual private network, wireless network security, LAN vulnerabilities, secure online shopping, internet browsing, secure electronic transactions, web fraud detection systems, mobile security, mobile application management, cybersecurity standards, information security forum standards, payment card industry data security standard

Topics: Digital Logic Design, Kirchhoff's law, Thevenin's theorem, Norton's theorem, circuit theory, semiconductors, transistors, digital logic, integrated circuits, digital logic gates, logic gates, combinational logic design, logic circuit diagram, truth table, Boolean expression, Boolean Algebra, Karnaugh Maps, Quine-McCluckskey, standard combinational logic circuits, ombinational logic circuits, combinational logic, binary adder, binary subtractor, digital comparator, multiplexer, digital encoder, binary decoder, sequential logic circuit, Flip-Flop, S-R Flip-Flop, JK Flip-Flop, T Flip-Flop, D-type Flip-Flop, registers, counters, computer codes, binary codes, binary-coded decimal, excess-3 code, gray code, error detection, error correction, digital error, parity bit, Hamming codes, Cyclic redundancy check

Topics: Operating System, Computer-System Organization, Computer-System Architecture, Operating-System Operations, Operating-System Structures, Operating-System Services, user interface, operating system interface, distributed systems, kernel data structures, Operating-System Debugging, process management, process scheduling, interprocess communication, Multicore Programming, Multithreading Models, Implicit Threading, CPU Scheduling, Multi-Processor Scheduling, Real-Time CPU Scheduling, Algorithm Evaluation, process synchronization, POSIX Synchronization, dead locks, memory management, Contiguous Memory Allocation, virtual memory, storage management, HDD Scheduling, NVM Scheduling, error detection, storage device management, RAID structure, file system, file-system interface, file-system implementation, file-system structure, file-system operations, directory implementation, Free-Space Management, File-System Internals, File-System Mounting, file sharing, virtual file systems, remote file systems, security, program threats, Cryptography, Role-Based Access Control, access matrix, virtual machines, networks, Distributed File Systems, remote file access, Linux system, Kernel Modules, programmer interface

Topics: computer network, computer network security, security threats, Computer Network Vulnerabilities, cyber crimes, hackers, scripting, web workers, security assessment, security analysis, security assurance, disaster management, access control, authorization, authentication, cryptography, firewall, intrusion detection, intrusion prevention, computer forensics, network forensics, virus filtering, content filtering, computer network security protocol, wireless networks, wireless devices, sensor network, Virtualization Technology, Virtualization security, cloud computing, cloud computing security, mobile systems, Internet of Things

Topics: Computer System, computer history, computer generations, vacuum tubes, transistors, Microprocessors, Integrated Circuits, Artificial Intelligence, computer components, RAM, ROM, control unit, Arithmetic and Logic Unit, Input Hardware, keyboard, mouse, Input Hardware-Pointing devices, Composite input devices, Audio input devices, Imaging devices, Video input devices, output hardware

Topics: Software Project Management, Requirements Engineering, Software Design, Software Development, Configuration Management, Software Inspections, Software Testing, Supplier Selection, Supplier Management, Software Quality Assurance, Software Metrics, Problem-Solving, Software Reliability, Software Dependability, formal methods, formal specification language, unified modelling language, software process improvement, capability maturity model integration, software engineering tools, agile methodology, miscellany of innovation

Topics: DATA MODELING, data, DATABASE MANAGEMENT SYSTEM, Relational Data Retrieval, Relational Database Model, Logical Database Design, Physical Database Design, Object-Oriented Database Management, Data Administration, Database Administration, Data Dictionaries, Database Control Issues, Security, Backup, Recovery, Concurrency, Client Database, Server Database, Distributed Database, Data Warehouse

Topics: Database Environment, Database Architecture, Relational Model, Relational languages, Relational Algebra, Relational Calculus, Data Manipulation, Data Definition, Advanced SQL, SQL, Object-Relational DBMSs, Database Analysis, Database Design, Database System Development Lifecycle, Entity–Relationship Modeling, Enhanced Entity–Relationship Modeling, Normalization, Advanced Normalization, Conceptual Database Design, Logical Database Design, Physical Database Design, Database Issues, Data Management, Transaction Management, Query Processing, Distributed DBMSs, Replication, Mobile Databases, Object-Oriented DBMS, Object DBMSs, Web Technology, Semistructured Data, Business Intelligence, Data Warehousing, Data Warehousing Design, OLAP, Data mining

Topics: Logic Design, number system, Boolean algebra, minterm expansions, maxterm expansions, Karnaugh maps, Quine-McCluskey Method, Multi-Level Gate Circuits, NAND gate, NOR Gate, Combinational Circuit Design, Multiplexers, Decoders, Programmable Logic Devices, Latches, Flip-Flops, VHDL, registers, counters, Clocked Sequential Circuits, Sequential Circuit Design, digital systems, switching circuits, number systems, number conversion, binary arithmetic, Boolean expression, truth tables, De Morgan's laws, Consensus Theorem, Prime Implicant Chart, Petrick’s Method, Three-State Buffers, Read-Only Memories, encoders, Shift Registers

Topics: algorithm design, algorithm analysis, Algorithm Efficiency, Algorithm Efficiency analysis, Brute Force, Exhaustive Search, Decrease-and-Conquer, Divide-and-Conquer, Transform-and-Conquer, Space and Time Trade-Offs, Dynamic Programming, Greedy Technique, Iterative Improvement, Algorithm Power, Algorithmic Problem Solving, Nonrecursive Algorithms mathematical analysis, recursive Algorithms mathematical analysis, Selection Sort, Bubble Sort, Sequential Search, Brute-Force String Matching, Closest-Pair Problems, Convex-Hull Problems, depth-First Search, Breadth-First Search, Insertion Sort, Topological Sorting, Variable-Size-Decrease Algorithms, Decrease-by-a-Constant-Factor Algorithms, binary search, Mergesort, quicksort, Binary Tree Traversals, Strassen’s Matrix Multiplication, Gaussian Elimination, presorting, Balanced Search Trees, Heaps, Heapsort, Horner’s Rule, Binary Exponentiation, Problem Reduction, B-Trees, hashing, Knapsack Problem, Optimal Binary Search Trees, Warshall’s Algorithm, Floyd’s Algorithm, Prim’s Algorithm, Kruskal’s Algorithm, Dijkstra’s Algorithm, Huffman Trees, huffman Codes, Simplex Method, Maximum-Flow Problem, Stable Marriage Problem, Lower-Bound Arguments, Decision Trees, Numerical Algorithms, Backtracking, Approximation Algorithms

Topics: computer applications, computer hardware, computer software, computer operations, operating systems, Computer Application Systems, Database Management System, Systems Development Life Cycle, computer networks, internet, computer security, Information Communication Technology, Processing Devices, storage, input Devices output Devices

Topics: digital design, binary numbers, digital system, number-base conversions, octal numbers, hexadecimal numbers, signed binary numbers, binary codes, binary storage, binary logic, Boolean Algebra, logic gates, Boolean functions, logic operations, digital logic gates, integrated circuits, gate level minimization, truth table, combinational logic, decoders, encoders, multiplexers, behavioral modeling, logic simulation, Synchronous Sequential Logic, sequential circuits, flip flops, registers, counters, shift registers, ripple counters, Synchronous Counters, memory, programmable logic, random access memory, memory decoding, error detection, error correction, read only memory, programmable array logic, Sequential Programmable Devices, Algorithmic State Machines, sequential binary multiplier, control logic

Topics: software processes, agile software development, requirements engineering, system modelling, architectural design, design and implementation, software testing, software evolution, system dependability, system security, dependable systems, reliability engineering, safety engineering, security engineering, resilience engineering, advanced software engineering, software reuse, component-based software engineering, distributed software engineering, service-oriented software engineering, systems engineering, systems of systems, real-time software engineering, software management, project management, project planning, quality management, configuration management

Topics: hardware, software, types of computer, input, output, computer monitor, computer storage, history of computer, computer software, problem solving, algorithm, Programming, programming language, BASIC, JAVA, computer networking, networking

Topics: Computer Generations, computer hardware, computer software, computer memory, Random Access Memory, Read Only Memory, storage devices, input devices, output devices, Operating Systems, utility program, Language Translators

Topics: number system, binary number system, octal number system, hexadecimal number system, binary addition, binary subtraction, signed numbers, complement representation, binary multiplication, floating point representation, binary codes, binary coded decimal numbers, weighted codes, self implementing codes, cyclic codes, gray code, error detecting codes, error correcting code, Hamming code, BCD addition, alphanumeric codes, Boolean algebra, logic gates, duality principle, Venn diagram, truth table, Karnaugh map, Quine – McCluskey Method, combinational switching circuits, combinational circuits, half adder, full adder, parallel binary adder, 8421 adder, BCD adder, subtractor, multiplexers, demultiplexers, code converter, encoders, priority encoder, magnitude comparator, parity generator, parity checker, programmable logic devices, Field Programmable Logic Array, Programmable Array Logic, Programmable Read Only Memory, Direct Coupled Transistor Logic, Integrated Injection Logic, transistor transistor logic, CMOS Logic, Flip flop, shift registers, counter, Asynchronous Counters, counter ICs, Digital to Analog Converter, Analog to Digital Converter, digital memory, semiconductor memory, read only memory, random access memory, magnetic memory, magnetic bubble memories, charged coupled devices, compact disk read only memory

Topics: Relational Model, Intermediate SQL, SQL, Advanced SQL, Database Design, E-R Model, Relational Database Design, database design, Complex Data Types, Data Analytics, big data, Physical Storage Systems, Data Storage Structures, Indexing, big data analytics, storage management, Query Processing, Query Optimization, Transactions, Transaction management, Concurrency Control, Recovery System, Database System Architectures, Parallel Storage, Distributed Storage, Parallel database, Distributed database, Parallel Query Processing, Distributed Query Processing, Parallel Transaction Processing, Distributed Transaction Processing, Advanced Indexing Techniques, Indexing Techniques, Blockchain Databases