Technique that is used to send data directly from a device to the memory is called……
a) design memory access
b) direct memory access
c) develop memory access
d) none of these
Which of the following implements supervisor calls for processes to request device input and output services?
a) operating system
b) device driver
c) input devices
d) all of these
Which of the following are characteristics of devices?
a) device speed
b) mutual exclusion
c) unidirectional devices
d) all of these
Which of the following is used to connected to your computer on one side and to remote computer on other side?
a) network
b) internet
c) socket
d) none of these
Which is used to hold a copy of data stored on slower device?
a) register
b) cache
c) device driver
d) all of these
Which of the following command perform startup function before the use of device?
a) open
b) close
c) schedule
d) Ioctl
