The GATE Grind

GATE Digital Electronics: Microprocessors and data acquisition – Previous Year Questions

4 GATE previous year questions on Microprocessors and data acquisition (Digital Electronics, Instrumentation Engineering) with answers and explanations, from every paper.

  1. GATE 2021 IN Q21 (1 mark, Multiple select) – A 16-bit microprocessor has 20 address lines A0–A19 and 16 data lines. Its higher eight data lines connect to the eight data lines of a 16 Kbyte…
  2. GATE 2025 IN Q42 (2 marks, Multiple choice) – An 8-bit microprocessor has 16-bit address bus (A15 − A0) where A0 is the LSB. As shown in Figure (a), it has a pre-installed 4 KB ROM whose starting…
  3. GATE 2025 IN Q64 (2 marks, Numerical answer) – A signal V M=5( t/3) V is applied to the shown switch-and-capacitor circuit with C=0.1\ F. Output V x feeds an ADC whose input is 10 MΩ in parallel…
  4. GATE 2026 IN Q56 (2 marks, Multiple select) – A 16-bit processor has 16-bit wide instructions and a few internal registers. Every 16-bit instruction is encoded in a fixed format with one operation…