operating system. 1. how operating systems work operating system functions at the simplest level, an...
TRANSCRIPT
Operating System
1. How Operating Systems Work Operating System FunctionsAt the simplest level, an operating system does two things:
• It manages the hardware and software resources of the system. In a desktop computer, these resources include such things as the processor, memory, disk space and more (On a cell phone, they include the keypad, the screen, the address book, the phone dialer, the battery and the network connection).
• It provides a stable, consistent way for applications to deal with the hardware without having to know all the details of the hardware.
2. List 4 different kinds of Operating Systems.
• Real-time operating system (RTOS) - any dedicated machine – alarms• Single-user, single task – Blackberry (changing to multi- tasking , single user)• Single-user, multi-tasking - Windows XP• Multi-user - Unix
3. Name 5 different types of Operating Systems.
• Windows XP, Windows 98 - used on PC• System 5, System 6, System 7 - used on MAC PC• MAC OS 7 , MAC OS 8, MAC OS 9 - use on Mac PC• Server operating systems - Linux, Windows NT,
Windows 2000, Novell 5.1, Citrix , OS/2• Mainframe operating Systems - Unix, DOS , Linux, • IBM - z/OS, z/VSE, z/TPF, z/VM,
• organize and manage files – copy , move, delete, rename files, create shortcuts, set up directories in a tree structure
• save copies of files in different places – especially photos and videos
• general keyboard shortcuts – ctrl c (copy), ctrl v(paste), ctrl x (cut), print and printscreen
4. Describe 3 or 4 different File Management techniques.
Assess User Computing Needs and select appropriate hardware and software for different situations• Student on fixed budget – portability – laptop or put in
one place a desktop• Home business user – desktop, printer, internet –
software that allows you to do business• Gaming enthusiast – need high end graphic card, high
end sound card, lots of RAM memory and high end processor – higher priced desktop – extra fans
• An accountant – computer runs different accounting software, probably portable – laptop
• Computer programmer – computer able to run IDE packages like netbeans, Eclipse – good processing speed and more RAM