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摘要： SQL DDL: Create Table, Drop Table DML: Select, Insert, Delete, Update Select Col_1,Col_2,...,Col_n - what to return From Rel_1,Rel_2,...,Rel_m - relat 阅读全文

摘要： Recursive Function A recursive function is a function that calls itself (i.e., a recursive call). A recursive function has a base case(s), i.e., no mo 阅读全文

摘要： Object-Oriented Programming Fundamental - Part 1 Object: can be quantified to mean one specific item - is an entity that has a state and a set of oper 阅读全文

摘要： Process Description and Control How are processes represented and controlled by the OS? All modern OS is built around the concept of process OS fundam 阅读全文

摘要： Computer program: A list of instructions(code) meant to be followed by a computer Executing a program: Programs must first be converted into machine c 阅读全文

摘要： Introduction File Systems permanent records stored in various files application programs are written to extract & add records Disadvantages of traditi 阅读全文

摘要： Lecture 1: Complexity Analysis How to measure Running time: Use a function to model the running time of a program or procedure. Assume an abstract mac 阅读全文

摘要： Software Software is a set of items or objects that form a "configuration" that includes: Programs (i.e., source code, executable code) which are inst 阅读全文

摘要： Basic Elements 1. Processor - Central Processing Unit (CPU) Two components: Control Unit Arithmetic (CU) & Logic Unit (ALU) Works repeatedly and conti 阅读全文