Basic Computer Notions Software

Next A simple computer Instruction format Instruction format (cont'd) Machine instructions Machine instructions (cont'd) Machine instructions (cont'd) Machine instructions (cont'd) Machine instructions (cont'd) Machine-language Programming Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Machine-language Programming (cont'd) Sample data Using an ‘intelligent’ computer Using a not-so-intelligent computer 34 of 50 Using a highly interactive system Using a highly interactive system (cont'd) Using a highly interactive system (cont'd) Using a highly interactive system (cont'd) Using SQL (Structured Query Language) Using a report-generation language Using a general-purpose high-level programming language Using assembler language Compilers and interpreters Compilers and interpreters (cont'd) Types of software Operating systems Operating systems are very complex Operating systems need to be very robust Consequences Consequences (cont'd)

Using an ‘English-like’ query system

? what is the average weight of the adult women in this sample?

*** Invalid syntax. Try again ***

? for sex = 'f' and age >= 18, what is average weight?

*** Invalid syntax. Try again ***

? for sex = 'f' and age >= 18, what is average of weight?

Average = 62.2.

?

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Last modified: Thu, 2007 Mar 15 08:35:42

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