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Tuesday, February 17, 2015
Saturday, August 16, 2014
Software engineering
Program:-
Set of instructions.
Software:-
Set of programs.
Software engineering:-
It is study and application of engineering to design, development and maintenance
of the software...
Wednesday, July 9, 2014
Topics covered in Computer system architecture (CSA)
Introduction Boolean algebra and Logic gates, Combinational logic blocks(Adders, Multiplexers, Encoders, de-coder), Sequential logic blocks(Latches, Flip-Flops, Registers, Counters) Store program control concept, Flynn’s classification of computers (SISD, MISD, MIMD); Multilevel viewpoint of a machine: digital logic, micro architecture, ISA, operating systems, high level language; structured organization; CPU, caches, main memory, secondary memory units & I/O; Performance metrics; MIPS, MFLOPS.
Instruction Set Architecture: Instruction...
Performance enhancement with pipelining
Pipelines
With pipelining, the CPU begins executing a second instruction before the first instruction is completed. Pipelining results in faster processing because the CPU does not have to wait for one instruction to complete the machine cycle.
Pipelines
Pipelines in computers are used to improve the performance of the basic instruction cycle. The goal is to improve the throughput of the computer, the number of instructions...
Control Unit
• A microprogram has a sequence of instructions in a microprogramming language.
– These are very simple instructions that specify micro‐operations.
Microprogrammed computers are characterized by the fact that the control signals are combined in control words, each bit of a word representing a control signal. The succession of the control words which indicate the correct sequence of elementary operations (micro-operations) that should...
Instruction Fetch Execute Cycle
1. Fetch Cycle
2. Decode Cycle
3. Execute Cycle
Working Of Instruction fetch Execute Cycle :
1.fetch an instruc:on from memory.
2.fetch any data required by the instruc:on from memory.
3.execute...
Detailed data path of a CPU
Central Processing Unit Introduction The CPU is made up of 3 major Components. The CPU performs a variety of functions dictated by the type of instructions that are incorporated in the computer In programming, memory locations are needed for storing pointers, counters, return addresses, temporary result , etc. Memory access is most time consuming operation in a computer. It is then more convenient and more efficient to store these intermediate...
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