ITEC 1000 Lecture Notes - Little Man Computer, Arithmetic Logic Unit, Von Neumann Architecture

• School: York University
• Department: Information Technology
• Course: ITEC 1000
• Professor: All

Document Summary

The www provided so documents could be shared easily and be available. Processing: cpu executes comp program (brain of computer) Alu: arithmetic/logic unit - arithmetic and boolean logical calculations. Cu: control unit control processing of info & movement of data in cpu. Interface unit moves instructions between cpu and other hardware (via bus) Rom gives instructions to cpu and tells it how to communicate with hard drive. Os always reserves a part of ram for itself. I/o: memory management, resource scheduling, program communication, security. In more complex systems 16 bits represent a character. Acsii is able to share 256 characters only. 8 bit patterns has a special name called byte, It does memory management, file management and device management. Everything in terms of files and devices is done by kernel. It has 16 digits which makes it able to store more characters. Software does the translation between binary and human language.