- Operating System Tutorial
- OS - Exams Questions with Answers
- Operating System Useful Resources
SwiffCore is a Mac OS X and iOS framework that renders vector shapes and animations stored in the SWF format. It also provides basic support for bitmaps, fonts, text, and MP3 streams. It isn't a Flash runtime. It doesn't enable you to run your interactive Flash games on iOS. Apple’s release of System 1 in January 1984 introduced the world’s first graphical user interface (GUI) operating system. Every other computer until that point had run on a command line, so the GUI-based System 1 became the predecessor of today’s mainstream computing world. Another way to free up RAM on Mac is to clear it of cache files. Of course, it won’t save you gigabytes of space, but deleting cache regularly, you can help your Mac run faster and avoid system issues. So, to remove cache files on your Mac, you need to: Open Finder. From the Go menu, select Go to Folder. The Mac was initially launched in 1984 as the Macintosh, the first personal computer to have a graphical user interface (GUI), 3.5″ floppy disk drive, and consistent operating system. Since then, the family of Mac computers has been expanded to include the MacBook Air, MacBook Pro, iMac, iMac Pro, Mac Mini, and Mac Pro.
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An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. The operating system is a vital component of the system software in a computer system. This tutorial will take you through step by step approach while learning Operating System concepts.
Why to Learn Operating System?
An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is a software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.
Some popular Operating Systems include Linux Operating System, Windows Operating System, VMS, OS/400, AIX, z/OS, etc.
Following are some of important functions of an operating System.
- Memory Management
- Processor Management
- Device Management
- File Management
- Security
- Control over system performance
- Job accounting
- Error detecting aids
- Coordination between other software and users
Applications of Operating System
Following are some of the important activities that an Operating System performs −
Security − By means of password and similar other techniques, it prevents unauthorized access to programs and data.
Control over system performance − Recording delays between request for a service and response from the system.
Job accounting − Keeping track of time and resources used by various jobs and users.
Error detecting aids − Production of dumps, traces, error messages, and other debugging and error detecting aids.
Coordination between other softwares and users − Coordination and assignment of compilers, interpreters, assemblers and other software to the various users of the computer systems.
Audience
This tutorial has been prepared for the computer science graduates to help them understand the basic to advanced concepts related to Operating System.
Prerequisites
Before you start proceeding with this tutorial, we are making an assumption that you are already aware of basic computer concepts like what is keyboard, mouse, monitor, input, output, primary memory and secondary memory etc. If you are not well aware of these concepts, then we will suggest to go through our short tutorial on Computer Fundamentals.
Microsoft Corp.’s Virtual PC software has been lauded by critics as a convenient way for Mac users to run Windows applications on their Macs, but what if you need to do the opposite? Maui, Hawaii-based MXS announced Tuesday the release of Cherry OS, an emulator that does the exact opposite — its developer says Cherry OS lets PCs run Mac OS X instead.
The virtual machine emulated by Cherry OS sports full network capabilities and has complete access to the host computer’s hardware resources — hard drive, CPU, RAM, FireWire, USB, PCI, PCMCIA bus, Ethernet networking and modem. It purportedly runs at about 80 percent of the performance of the host CPU, according to the developer.
Theory Mac Os Catalina
“Now about 600 million PC users can have the MAC advantage,” said the software’s developer, Arben Kryeziu. “One computer to use all software and if PC users would use MAC software to get email, perhaps they would avoid viruses, Trojans and spy-ware.”
Thery Mac Os Download
Cherry OS is being distributed as an online download, and costs US$49.95. Mac operating system software and application software is not included.