Free Download Computer System Architecture Notes in pdf – Bca 1st Semester. High quality, well-structured, and Standard Notes that are easy to remember.
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Computer System Architecture Notes Unit 1 – 5
Unit 1: Introduction to Computer Architecture
“Computer Architecture” refers to the basic concepts and components that make up a computer system.
Unit 2: Digital logic and Arithmetic
“Digital logic and arithmetic” are fundamental concepts in computer science and electronics that deal with binary systems (0s and 1s) to perform computations.
Unit 3: CPU Organization
“CPU organization” refers to the internal structure and design of the Central Processing Unit (CPU).
Unit 4: Memory organization
“Memory organization” refers to the structured arrangement of different types of memory within a computer system to optimize data storage and access.
Unit 5: Data transfer
“Data transfer” refers to the process of moving data between different components of a computer system, such as between memory and the CPU or between the CPU and input/output devices.
Syllabus of computer system architecture
UNIT – 1
(a) Introduction to Computer System Architecture:
Basic structure and functional units of a computer
Von Neumann architecture
Stored program concept
Instruction cycle, fetch-decode-execute cycle
Bus structures and types
(b) Number Systems and Codes:
Binary, octal, decimal, and hexadecimal number systems
Conversions between number systems
Binary arithmetic – addition, subtraction, multiplication, and division
1’s and 2’s complement
BCD, ASCII, Gray code
UNIT – 2
Boolean Algebra and Logic Gates:
Basic logic gates – AND, OR, NOT
Universal gates – NAND, NOR
Boolean laws and theorems
Simplification of Boolean expressions – Karnaugh Map (up to 4 variables)
Combinational circuits – half adder, full adder, multiplexer, demultiplexer, encoder, decoder
UNIT – 3
Sequential Circuits and Memory:
Flip-flops – SR, JK, D, T (basic operations and truth tables)
Registers and types of registers
Counters – asynchronous and synchronous
Memory hierarchy – cache, primary, secondary
RAM and ROM – types and characteristics
UNIT – 4
Central Processing Unit (CPU):
General register organization
Instruction format – opcode, operand, addressing modes
Instruction types – data transfer, arithmetic, logical, branching
Stack organization, instruction pipelining (basic concept)
RISC vs. CISC architecture
UNIT – 5
Input/Output and Control Unit:
I/O devices and their interfacing
I/O techniques – programmed I/O, interrupt-driven I/O, DMA
Control unit – hardwired and microprogrammed control
Micro-operations – fetch, decode, execute cycle
Introduction to microprocessors (basic overview)