Check this out:

http://kissanime.com/G/326450?l=http%3a%2f%2fkissanime.com%2fAnime%2fSpecial-A

Types of software

A diagram showing how the operating system software and application software are layered on a typical desktop computers. The arrows indicate information flow.

·         Application software uses the computer system to perform useful work or provide entertainment functions beyond the basic operation of the computer itself.

·         System software is designed to operate the computer hardware, to provide basic functionality, and to provide a platform for running application software. System software includes:

·         Operating system, an essential collection of computer programs that manages resources and provides common services for other software. Supervisory programs, boot loaders, shells and window systems are core parts of operating systems. In practice, an operating system comes bundled with additional software (including application software) so that a user can potentially do some work with a computer that only has an operating system.

·         Device driver, a computer program that operates or controls a particular type of device that is attached to a computer. Each device needs at least one corresponding device driver; thus a computer needs more than one device driver.

·         Utilities, software designed to assist users in maintenance and care of their computers.

·         Malicious software or malware, computer software developed to harm and disrupt computers. As such, malware is undesirable. Malware is closely associated with computer-related crimes, though some malicious programs may have been designed as practical

5th Generation – Artificial Intelligence

-          Computers that are capable of learning and self-organization

-          Uses parallel processing

-  a lot of processors work as one

-          Expert System (Watsons), voice recognition, robotics, speed recognition

4th Generation – Microprocessors

-          1971-present

-          Graphical User Interface

-          Picoseconds

-          Can fit into the palm of the hand

-          Available for home users

-          Ex. CPU, LSI etc.

 

3rd Generation – Integrated Circuits

-          1964-1971

-          The keyboard and the monitor was introduced as input, output , and operating system

-          Small chips with small transistors in one

-          Logic gates

-          Performs other application

-          Binary and results

-          Silicon chip

-          Nanoseconds

-          High-level languages were used

-          Smaller

-          Were produced commercially

2nd Generation – Transistors

-          1956-1963

-          Instructions were written using the assembly language

-          Works the same as vacuum tubes

-          Smaller

-          Program is stored already

-          Microseconds

-          Commercial production

Generation of Computer

-          Each generation is designed based on a new technological development

1^st generation – Vacuum Tubes

-          1940-1956 /.during World War II

-          Software technology

-          For circuitry and magnetic drums for memory

-          Ine vacuum tube = one binary value. (1 or 0)

-          Input through punched cards

-          Output displayed as printouts

-          Machine language

-          Milliseconds

-          Enormous

-          Used for scientific application

-          Ex. UNIVersal