The user is aware of the effects of different applications programs (1) but operating systems are invisible to most users. They lie between applications programs, (2) such as word processing, and the hardware. The supervisor program is the most important. It remains in memory, (3) therefore it is referred tо as resident. Others are called non-resident (4) because they are loaded into memory only when needed. Operating systems manage the computer's resources, (5) such as the central processing unit. (6) In addition, they establish a user interface, and execute and provide services for applications software (7) although input and output operations are invoked by applications programs, they are carried out by the operating system.
In the picture Jane's Sister is as slim as she in the photo.
In the the picture Jane's mother is as beautiful as in photo
In the picture Kate isn't less attractive the she looks in the photo
In the picture Jane's father isn't a bit older than he is in the photo
In the picture Jane;'s father is much more handsome than he is in the photo.He does'nt wear glasses
я не уверена , посоветуйтесь лучше еще с кем-то
"Інший" так и переводиться
<span>cleaner carpenter dentist worker mechanic bricklayer scientist plumber
fire fighter
refund collector
florust driver butcher hairdresser lawyer</span>
Kate always gets up early
I usually walk with my friends on Sundays
Tom is doing his homework now
