Wednesday 5 August 2015

Functional Units of Computer – Computer Organization

Computer Organization is a term about the management, working, super vision, coordination and controlling of components of a computer according to end user requirements. This title being a topic of JNTU- Hyderabad Curriculum for B.Tech II Year CSE helps students to understand about computer functionality in depth.

The Syllabus formed by JNTUH for this title in its B.Tech four – year degree is well planned. The topic discussion starts with basics, and discusses functional units of computer, their organization and assembly language programming.

The curriculum includes 5 units in total, each unit with its own significance. The first Unit describes how the functional units of computer like CPU, Memory and I/O Unit communicates with each other including the topics like Instruction formats, addressing modes and branch instructions etc…

Unit – II discuss the communication between I/O devices and Memory. It also covers more useful concepts in this context like Asynchronous data transfer, Input – output Processor, Direct Memory Access, Interrupts, Interrupt handling schemes etc…

Third unit is about memory management and organization. It discusses the need of various memories in computer and their hierarchy. The leading concept of this unit is Cache memory – FASTEST BUFFER MEMORY; we discuss how cache memory reduces CPU waiting time, how it improves the performance of computer with its policies like replacement policy, write policy and mapping strategies.

The fourth unit is a case study of a processor: 8086. We will learn 8086 pin description, addressing modes and registers of 8086 microprocessor. Finally Unit – V introduces assembly language programming for a processor with basic example programs on arithmetic expressions, branch and CALL instructions.

I suggest this “Computer Organization” title is the mandatory syllabus for all computer users irrespective of their stream in education, profession and area of service. This Subject acts as base for “Micro processors”, “Embedded systems” and “Operating Systems”. This Subject can offer the career options – Embedded engineer, Chip Designer, Computer Architect, Computer designer etc…

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Article By:

K. Satya Narayana
Assistant Professor
Department of CSE
Sphoorthy Engineering College


Sphoorthy Engineering College




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