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BCSWritten
BCS written syllabus
General and technical cadres · 235 pages
Compulsory subjects and post-related subjects for professional and technical cadres. Confirm the applicable subject code in the recruitment notice.
Published by BPSC. Collected 2026-11-14. Confirm the edition and subject against your recruitment notice before studying.
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SYLLABUS FOR BCS (WRITTEN) EXAMINATION
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Communication Theory:
Overview of communica tion systems: Basic principles, fundamental elements, system limitations,
message source, bandwidth requirements, transmission media types, bandwidth and transmission
capacity. Noise: characteristics of various types of noise and signal to noise ratio. Inf ormation theory:
Measure of information, source encoding, error free communication over a noisy channel, channel
capacity of a continuous system and channel capacity of discrete memory less system. Communication
systems, Analog and digital, Continuous wave modulation, Transmission types-base band transmission,
carrier transmission, amplitude modulation introduction, double side band, single side band, vestigial
side band, Quadrature: spectral analysis of each type, envelope and synchronous detection, angle
modulation instantaneous frequency, frequency modulation (FM) and phase modulation (PM). spectral
analysis, demodulation of FM and PM. Pulse modulation: Sampling: sampling theorem, Nyquist
cirterion, aliasing, instantaneous and natural sampling, pulse amp litude modulation-principle, bandwidth
reuirements; pulse code modulation (PCM) -quantization principle, quantization noise, non -uniform
quantization, signal to quantization error ratio, differential PCM, demodulation of PCM; delta
modulation (DM)-principle, adaptive DM, line coding-formats and bandwidths, digital modulation.
Amplitude-shift keying-principle, on-off keying, bandwidth requirements, detection, noise performance,
phase-shift keying (PSK) -principle, bandwidth requirements, detection, differenti al PSK. quadrature
PSK, noise performance, frequency shift Keying (FSK) - principle, continuous and discontinuous phase,
FSK, minimum -shift keying, bandwidth requirements, detection of FSK. Multiplexing: Time -division
multiplexing (TDM)- principle, receiver synchronization, frame synchronization, TDM of multiple bit
rate systems; frequency division multiplexing principle, de -multiplexing; wavelength -division
multiplexing, multiple -access network -time-division multiple -access, frequency -division multiple -
access; code -division multiple -access (CDMA) - spread spectrum multiplexing, coding techniques and
constraints of CDMA. Communication system design: Design parameters, channel selection criteria and
performance simulation.
Microprocessor and Interfacing
Introduction to microprocessors. Intel 8086 microprocessor, Architecture, addressing modes, instruction
sets, assembly language programming, system design and interrupt. Interfacing: programmable
peripheral interface, programmable timer, serial communication int erface; programmable interrupt
controller, direct memory access, keyboard and display interface, introduction to micro-controllers.