حوسبة Ch3&4

The smartphone Operating Systems are

• Nokia Sumbian OS

• UNIX

• Linux

• MAC OS

The Conditions required for deadblock are

• Competition for non-sharable resources

• Resources requested on a partial basis

• An allocated resource cannot be forcibly retrieved

• All of them

The Multitasking is

• One machine, many users

• One users, many tasks

• One machine, one user

• None of them

The critical Region is

• A control flag

• A group of instructions that should be executed by only one process at a time

• Requirement that only one process at time be allowed to execute a Critical Region

• None of them

The functions of Kernel are

• File manager

• Device drivers

• Memory manager

• All of them

The smartphone Operating Systems are

• Google Android

• UNIX

• Liunx

• Mac OS

File manager allocates space in main memory

• True

• False

One example of Operating Systems is LINUX

• True

• False

The Time-sharing is

• One machine, many users

• One user, many tasks

• One machine, one user

• None of them

One example of Operating Systems is UNIX

• True

• False