3. Functions of Computer
Characteristics and Limitations Of Computer
Generations Of Computer
Classification Of Computer
Computer System and Technology
Software
Operating System
Computer Language
8. Various Generations of Computer
First generation computer(1951-1959): Use of vacuum tubes
Second generation computer(1959-1965): Use of transistors
Third generation computer(1965-1971): Use of IC
Forth Generation computer(1971-Current year): Use of large
scale of Integration
Fifth Generation computer(future Generation): Use of ULSI
10. Relationship Between System and Technology
Technology: Composed of hardware, software, data and
telecommunication
System: Group of interrelated components
Input
Processing
Output
Feed back: Data about the performance of a system
Control: Monitoring and evaluating feedback
20. Low Level Language
Easily Understandable for Computer
Execute Fast
Machine Dependent
Inefficient in error finding
Hard for logic development
Machine language: Directly executed without any translation.
Instruction written in what can understand by processor.
Assemble language: Instructions are written in codes and
symbolic address.
21. High Level Language
Human understand easily
Slow in execution
Slow in execution
Easy in error finding
Easy in developing logic