User interface Operating system

-



a screenshot of bash command line. each command typed out after prompt , , output appears below, working way down screen. current command prompt @ bottom.


every computer operated individual requires user interface. user interface referred shell , essential if human interaction supported. user interface views directory structure , requests services operating system acquire data input hardware devices, such keyboard, mouse or credit card reader, , requests operating system services display prompts, status messages , such on output hardware devices, such video monitor or printer. 2 common forms of user interface have historically been command-line interface, computer commands typed out line-by-line, , graphical user interface, visual environment (most commonly wimp) present.


graphical user interfaces

a screenshot of kde plasma 5 graphical user interface. programs take form of images on screen, , files, folders (directories), , applications take form of icons , symbols. mouse used navigate computer.


most of modern computer systems support graphical user interfaces (gui), , include them. in computer systems, such original implementation of classic mac os, gui integrated kernel.


while technically graphical user interface not operating system service, incorporating support 1 operating system kernel can allow gui more responsive reducing number of context switches required gui perform output functions. other operating systems modular, separating graphics subsystem kernel , operating system. in 1980s unix, vms , many others had operating systems built way. linux , macos built way. modern releases of microsoft windows such windows vista implement graphics subsystem in user-space; graphics drawing routines of versions between windows nt 4.0 , windows server 2003 exist in kernel space. windows 9x had little distinction between interface , kernel.


many computer operating systems allow user install or create user interface desire. x window system in conjunction gnome or kde plasma 5 commonly found setup on unix , unix-like (bsd, linux, solaris) systems. number of windows shell replacements have been released microsoft windows, offer alternatives included windows shell, shell cannot separated windows.


numerous unix-based guis have existed on time, derived x11. competition among various vendors of unix (hp, ibm, sun) led fragmentation, though effort standardize in 1990s cose , cde failed various reasons, , eclipsed widespread adoption of gnome , k desktop environment. prior free software-based toolkits , desktop environments, motif prevalent toolkit/desktop combination (and basis upon cde developed).


graphical user interfaces evolve on time. example, windows has modified user interface every time new major version of windows released, , mac os gui changed dramatically introduction of mac os x in 1999.








Comments

Post a Comment

Popular posts from this blog

Investigation Murder of Brooke Wilberger

-
1 investigation 1.1 initial efforts 1.2 joel patrick courtney 1.2.1 conviction investigation initial efforts a billboard in salem requesting information on brooke wilberger. when wilberger disappeared, police began investigating – against normal procedure. lt. ron noble of corvallis police department said, normally, wait. because adults can come , go please, , wait see if showed maybe next day. however, in case, police officials agreed family wilberger not type of girl disappear on own. wilbergers church organized search citizens of corvallis. the investigation centered on sung koo kim, named person of interest in disappearance. kim later dropped suspect, received 11-year prison sentence multiple counts of burglary , theft of women s personal property in yamhill county, oregon, crimes uncovered while being investigated wilberger disappearance. released in december 2012 after serving 7 years. joel patrick courtney on november 30, 2004, university of new mexico student beaten , rape
Read more

Geography St Columb Major

-
1 geography 1.1 town 1.2 settlements 1.3 rivers 1.4 protected areas 1.5 transport geography map of st columb major , surrounding area, robert k. dawson, 1810 st columb situated in mid-cornwall, 5 miles (8 km) inland north coast. the parish covers area of 12,884 acres (5,214 ha) or 20.1 square miles (52 km). highest point, @ 709 ft (216 m), castle dinas, site of iron age hill fort 2 miles (3.2 km) east of st columb. of land in parish used farming (both arable , pastoral), small areas of woodland. there moorland in higher northern , eastern parts of parish, notably part of goss moor in southeast, castle downs below castle dinas (east) , area of moorland adjoining rosenannon downs (northeast). vale of lanherne, valley of river menalhyl (see below) famed beauty , occupies area west of town, connecting st columb , st mawgan churchtown. town st columb occupies plateau @ 300 ft (90 m) elevation. north part of town (known bridge ) descends vale of lanherne, having minimum elevation of approxi
Read more

Shri Ram Centre for Performing Arts Shriram Bharatiya Kala Kendra

-
shri ram centre art , culture, delhi shri ram centre performing arts (srcpa) @ mandi house on safdar hasmi marg, new delhi, close kendra, run indian national theatre trust established in 1958 promotion of art , culture, people sheila bharat ram, kamla devi chattopadhyay,nandita kriplani , aditya srivastava associated it. centre runs certified 2 year acting course. srcpa theatre repertory company started in 1980 , puppet theatre company, on years saw rise of modern puppetry under puppeteer dadi padamjee. the present building of centre opened in ‘60’s. designed shiv nath prasad theatre doyen, ebrahim alkazi, , constructed under overall supervision of industrialist vinay bharat ram of shriram group (dcm ltd.), industrialist family of lala shri ram. shankar lal murli dhar auditorium has capacity of 375 people @ 2 levels; 300 in stall & 75 in balcony.
Read more