குதிரை யுத்தநாளுக்கு ஆயத்தமாக்கப்படும்; ஜெயமோ கர்த்தரால் வரும். நீதிமொழிகள் 21:31
Public Sector Undertakings
NIELIT Scientist Exam
About NIELIT

National Institute of Electronics & Information Technology (NIELIT), erstwhile known as the DOEACC Society, is an autonomous scientific society under the administrative control of Ministry of Electronics and Information Technology of the Government of India. The Society is registered under the Societies Registration Act, 1860. The NIELIT (National Institute of Electronic and Information Technology) Scheme, jointly developed by AICTE and MeitY, was launched in 1990 after detailed deliberations in a National Working Group. The objective of the scheme is to generate high quality man-power in the computer software and allied fields by utilising the expertise and facilities available with various institutions in the non-formal sector. NIELIT is one of the National Examination Body in India, which accredits Computer courses in 'O' , 'A' , 'B' & 'C' level approving institutes / organizations for conducting particular course, specializing in the non-formal sector of IT education and training.

Over the last two decades, NIELIT has acquired very good expertise in IT training, through its wide repertoire of causes, ranging from ‘O’ Level (Foundation), ‘A’ Level (Advance Diploma), ‘B’ Level (MCA equivalent), ‘C’ Level (M-Tech level), IT literacy courses such as CCC (Course on Computer Concept), BCC (Basic Computer Course) and other such long term and short term course in the non formal sector like courses on Information Security, ITeS-BPO(Customer Care/Banking), Computer Hardware Maintenance (CHM-O/A level), Bio-Informatics(BI-O/A/B level), ESDM etc, besides, high end courses offered by NIELIT Centres at Post-Graduate level (M.Tech) in Electronics Design & Technology, Embedded Systems etc. which are not normally offered by Universities/Institutions in the formal sector, in association with the respective state Universities.

Syllabus
UNIT 1:ENGINEERING MATHEMATICS
Mathematical Logic: Propositional Logic; First Order Logic Probability: Conditional Probability; Mean, Median, Mode and Standard Deviation; Random Variables; Distributions; uniforms, normal, exponential, Poisson, Binomial. Set Theory & Algebra: Sets, Relations, Functions, Groups, Partial Orders, Lattice, Boolean Algebra. Combinatorics: Permutations, Combinations, Counting, Summation, generating functions, recurrence relations, asymptotics. Graph Theory: Connectivity, spanning trees, Cut vertices & edges, covering, matching, independent sets, Colouring, Planarity, Isomorphism. Linear Algebra: Algebra of Matrices, determinants, systems of linear equations, Eigen values and Eigen vectors. Numerical Methods: LU decomposition for systems of linear equations, numerical solutions of non-linear algebraic equations by Secant, Bisection and Newton-Raphson Methods; Numerical integration by trapezoidal and Simpson’s rules. Calculus: Limit, Continuity & differentiability, Mean value Theorems, Theorems of integral calculus, evaluation of definite & improper integrals, Partial derivatives, Total derivatives, Maxima & Minima.
UNIT 2:DIGITAL LOGIC
Logic functions, Minimization, Design and synthesis of combinational and sequential circuits, Number representation and computer arithmetic (fixed and floating point).
UNIT 3:COMPUTER ORGANIZATION AND ARCHITECTURE
Machine instructions and addressing modes, ALU and data-path, CPU control design, Memory interface, I/O interface (Interrupt and DMA mode), Instruction pipelining, Cache and main memory, Secondary storage.
UNIT 4:ANALOG AND DIGITAL COMMUNICATION
Autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems, amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, Super heterodyne receivers, circuits for analog communications, Information theory, entropy, mutual information and channel capacity theorem, Digital communications, PCM, DPCM, digital modulation schemes, amplitude, phase and frequency shift keying (ASK, PSK, FSK), QAM, MAP and ML decoding, matched filter receiver, calculation of bandwidth, SNR and BER for digital modulation; Fundamentals of error correction, Hamming codes; Timing and frequency synchronization, inter- symbol interference and its mitigation; Basics of TDMA, FDMA and CDMA.
UNIT 5:PROGRAMMING AND DATA STRUCTURES
Programming in C, Functions, Recursion, Parameter passing, Scope, Binding, Abstract data types Arrays, Stacks, Queues, Linked Lists, Trees, Binary search trees, Binary heaps, Object Oriented Programming Concepts- Object, Class, Inheritance, Polymorphism, Abstraction and Encapsulation.
UNIT 6:ALGORITHMS
Analysis, Asymptotic, notation, Notions of space and time complexity, Worst and average case analysis, Design; Greedy approach, Dynamic programming, Divide-and-conquer, Tree and graph traversals, Connected competent, Spanning trees, Shortest paths; Hashing, Sorting, Searching, Asymptotic analysis (best, worst, average cases) of time and space, upper and lower bounds, Basic concept of complexity classes –P, NP, NP-hard, NP-complete.
UNIT 7:THEORY OF COMPUTATION
Regular languages and finite automata, Context free languages and Push-down automata, Recursively enumerable sets and Turing machines, Undecidability.
UNIT 8:COMPILER DESIGN
Lexical analysis, Parsing, Syntax directed translation, Runtime environments, Intermediate and target code generation, Basics of code optimization.
UNIT 9:OPERATING SYSTEM
Processes, Threads, Inter-Process communication, Concurrency, Synchronization, Deadlock, CPU scheduling, Memory management and virtual memory, File systems, I/O systems, Protection and security.
UNIT 10:DATABASES
ER-model, Relational Model (relational algebra, tuple calculus), Database design (integrity constraints, normal forms), Query languages (SQL), File structures (sequential files, indexing, B and B+ trees), Transactions and concurrency control.
UNIT 11:INFORMATION SYSTEMS AND SOFTWARE ENGINEERING
Information gathering, requirement and feasibility analysis, data flow diagrams, process specifications, input/output design, process life cycle, planning and managing the project, design, coding, testing, implementation, maintenance.
UNIT 12:COMPUTER NETWORKS
ISO/OSI stack, LAN technologies, Flow and error control techniques, Routing algorithms, Congestion control, TCP/UDP and sockets, IP(v4), IP(v6), Application layer protocols, (ICMP, DNS, SMTP, POP, FTP, HTTP), Basic concepts of hubs, switches, gateways, and routers. Wireless technologies, Network security – basic concepts of public key and private key cryptography, digital signature, firewalls.
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