The 1.5 operating system
system software (system software) means the algorithm serves the control function of the computer. And peripherals. As an intermediary between users and with PC
.The software system is divided into
1) operating system (Operating System: OS) is a software function control function of the device and software, all within a computer. As Figure 1.5 by to take care of, and supply the hardware and software installed fish systematically, for example operating systems such as Windows (Windows), Linux (Linux) and Mac OS (MAC OS) as Figure 1.6
.2) utility (utilities program) is a program that promotes the work of the computer. Or help other application program The ability to use convenient and faster. Such a program is used to store data (file manager).Such as (back and restore) program used to compress the file (file compression) and applications in the area of ของดิ disks (disk. Defragmenter) as Figure 1.7
3) device driver or device driver (device driver) is a program that helps in the system so that the computer can contact or use of equipment. . as figure 1.8
.4) translator. Is a program that a program written in a high-level computer language code in a computer can work. As Figure 1.9 examples, such as the java compiler compiler compiler Chi
.Education software applications (application software) means the code written to make computers work according to specific purposes. Software application may be written using the computer programming language, such as basic (basic) Pascal (Pascal).(COBOL) C (c + + C) (C) and hot (Java) application software group use popular table 1.1
1.2.3.Data (date) data is collected and input into the computer. Through the equipment of the unit, input, such as keyboard, and a scanner (scanner).The data is stored in the memory (memory unit) before being transferred to the data storage unit (storage unit), such as the hard disk. And CD (compact Disc:CD) prevention data into the computer as figure 1.10
1.2.4 personnel (people) personnel is the most important components of information systems. Refers to a system developer staffs as Figure 1.11 staffs are developing information systems must have the knowledge and ability in the information system development efficiency, can work according to the requirements of users. A simple and convenient, and the user must have the knowledge and understanding.Information and communications. Correctly the useful information!
1.2.5 procedures (procedure) information system must have procedures that hierarchy is clear. So that the user can understand easily. And operating effectively. In both situations, such as normal and emergency situations.Procedure copy data process when the data have been damaged. Or when the computer and equipment was damaged, damage, these steps should be collected and prepared into the book.As Figure 1.12
figure 1.12 manual
.Various organizations have a lot of investment in supply efficient management information system to bring help to both management and task management of general enterprise. Emphasis on the quality of information and the value in the investment.A computer system is the information processing them. Then the results come out to the user. The user information will bring information to the decision making in any activities activities.Must come back considering starting a step input again that input, and routine other accurate perfect or not. As Figure 1.13
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