ALU, Datapath and Control Unit: GATE CS previous year questions (Computer Organization and Architecture)

GATE CS 2026 Set 1MCQ2 marksMedium (estimate)
GATE CS 2026 Set 1, Q.36
Consider the real valued variables $X$ , $Y$ and $Z$ represented using the IEEE 754 single-precision floating-point format. The binary representations of $X$ and $Y$ in hexadecim...
ALU, Datapath and Control Unit
GATE CS 2025 Set 1MSQ1 markEasy (estimate)
GATE CS 2025 Set 1, Q.27
A partial data path of a processor is given in the figure, where RA, RB, and RZ are 32-bit registers. Which option(s) is/are CORRECT related to arithmetic operations using the d...
ALU, Datapath and Control Unit
GATE CS 2025 Set 2NAT1 markEasy (estimate)
GATE CS 2025 Set 2, Q.32
The following two signed 2's complement numbers (multiplicand M and multiplier Q) are being multiplied using Booth's algorithm: M: 1100 1101 1110 1101 and Q…
ALU, Datapath and Control Unit · Number Representations and Computer Arithmetic
GATE CS 2025 Set 2MSQ2 marksEasy (estimate)
GATE CS 2025 Set 2, Q.49
Three floating point numbers $X, Y,$ and $Z$ are stored in three registers $R_{X}, R_{Y},$ and $R_{Z}$ , respectively in IEEE 754 single precision format as given below in hexadecimal:...
ALU, Datapath and Control Unit · Number Representations and Computer Arithmetic
GATE CS 2025 Set 2NAT2 marksEasy (estimate)
GATE CS 2025 Set 2, Q.61
An application executes $6.4 \times 1 0^{8}$ number of instructions in 6.3 seconds. There are four types of instructions, the details of which are given in the table. The duration...
ALU, Datapath and Control Unit · Instruction Pipelining and Hazards
GATE CS 2024 Set 2MCQ1 markEasy (estimate)
GATE CS 2024 Set 2, Q.14
The format of a single-precision floating-point number as per the IEEE 754 standard is: Sign Exponent Mantissa (1 bit) (8 bits) (23 bits) Choose the largest floating-point numbe...
ALU, Datapath and Control Unit · Number Representations and Computer Arithmetic
GATE CS 2023MCQ2 marksMedium (estimate)
GATE CS 2023, Q.45
Consider the IEEE-754 single precision floating point numbers $P = 0xC1800000 and Q = 0x3F5C2EF4 .$ Which one of the following corresponds to t...
ALU, Datapath and Control Unit
GATE CS 2022MCQ2 marksMedium (estimate)
GATE CS 2022, Q.41
Consider three floating point numbers A, B and C stored in registers RA, RB and RC, respectively as per IEEE-754 single precision floating point format. The 32-bit content store...
ALU, Datapath and Control Unit
GATE CS 2020MCQ1 markMedium (estimate)
GATE CS 2020, Q.14 (CS Q.4)
Consider the following data path diagram. Single bus CPU data path architecture diagram showing MAR, MDR, IR, PC, general registers R0 through R7, temporary registers TEMP1 and...
ALU, Datapath and Control Unit
GATE CS 2017 Set 1MCQ1 markEasy (estimate)
GATE CS 2017 Set 1, Q.9 (CS Q.9)
When two 8-bit numbers $A_{7} \dots A_{0}$ and $B_{7} \dots B_{0}$ in 2's complement representation (with $A_{0}$ and $B_{0}$ as the least significant bits) are added using a ripple-carry a...
ALU, Datapath and Control Unit · Number Representations and Computer Arithmetic
GATE CS 2016 Set 2NAT2 marksMedium (estimate)
GATE CS 2016 Set 2, Q.40 (CS Q.30)
Suppose the functions $F$ and $G$ can be computed in 5 and 3 nanoseconds by functional units $U_{F}$ and $U_{G}$ , respectively. Given two instances of $U_{F}$ and two instances of…
ALU, Datapath and Control Unit
GATE CS 2014 Set 1NAT2 marksMedium (estimate)
GATE CS 2014 Set 1, Q.65 (CS Q.55)
Consider two processors $P_{1}$ and $P_{2}$ executing the same instruction set. Assume that under identical conditions, for the same input, a program running on $P_{2}$ takes 25% less...
ALU, Datapath and Control Unit

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