Ch1

Question 1

Operating System

Answer 1

Collection of one or more software modules that manages and controls the resources of a computer or
other computing device or electronic device and gives users and programs an interface to utilize these resources

Question 2

Kernel

Answer 2

Part of the OS that implements basic functionality and is always resident in memory

Question 3

Services

Answer 3

functions the OS kernel provides to users, mostly through APIs via OS calls. These can be grouped into categories by functionality, such as file manipulation services (create, read, copy), memory allocation (get, free) or miscellaneous services ( get
system time)

Question 4

Utility

Answer 4

Programs no part of the OS kernel, but work closely with the kernel to provide was of use or access to system information.

Question 5

Device

Answer 5

A piece of hardware connected to the main computer system hardware.

Question 6

Device Controller

Answer 6

Hardware interface which helps connect a device or a group of similar devices to a computer system

Question 7

Device Driver

Answer 7

A software routine that is part of the OS, and is used to communicate with and control a device through its device controller.

Question 8

Hardware Abstraction Layer

Answer 8

are software routines or modules that provide a device independent
layer through which to communicate with hardware.

Question 9

BIOS

Answer 9

Software that abstracts the common

device hardware, such as keyboards, basic video, and system clock.

Question 10

Loader

Answer 10

Routine contained on the first card which would load the rest of the application into memory