Chapter 1- Introduction to Operating Systems Essay

question

Microcomputer
answer

Computer built around a special intergrated circuit that perfroms the calculations, or processing, of the computer.
question

Central Processing Unit
answer

The brain of the computer
question

Microprocessor
answer

An integrated circuit which peforms the calculations, or processing, for a computer
question

Server
answer

A computer that plays one of several important roles in a network.
question

Clients
answer

A software component on a computer that accesses services from a network server
question

Input/Output
answer

Anything sent into the computer; anything coming out of the computer.
question

Motherboard
answer

Central Circuit board of the computer.
question

Memory
answer

Involves chips that store programs and data.
question

RAM
answer

Volatile memory that stores active programs and data while the computer is operating.
question

ROM
answer

Type of memory that storess programs more or less permanently.
question

ROM BIOS
answer

A set of program instructions for starting the computer, as well as for controlling communications between the processor and other components.
question

Display Screen
answer

A monitor or a flat screen panel display for visual output from the computer.
question

Cursor
answer

A graphical pointer that can be moved around a GUI by a mouse.
question

Mouse
answer

The most common pointing device.
question

Disk Drive
answer

A data and program storage that works by encoding data onto the surface of platters called disks.
question

Peripheral Device
answer

All computer components that are non essential add-on devices.
question

Operating System
answer

A program that acts as the central control program for the computer
question

Kernel
answer

The main component of the Operating System that always remains in memory while a computer is running.
question

User Interface
answer

The Software layer through which the user communicates with the OS.
question

Graphical User Interface
answer

Offers menus and graphical icons that allow you to use the pointing device to select programs to run and perfrom many other tasks.
question

Job Management
answer

An operating system function that controls the order and time in which the programs are run.
question

Task Management
answer

Allows the user to switch back and forth between multiple tasks.
question

Multitasking
answer

A computer that is simulttaneously running two or more programs at the same time.
question

Memory Management
answer

Operating System function that manages the placement of programs and data in memory, while keeping track of where it put them.
question

Virtual Memory
answer

A system of memory management in which the OS moves programs and data in and out of memory as needed.
question

File Management
answer

Operating system fuction that allows the operating system to read, write, and modify data.
question

Folder
answer

A special file that can contain files as well as other directories.
question

Device managment
answer

Operating system function controls hardware devices through the use of special hardware
question

Device Drivers
answer

Special software added to the OS to control a physical component.
question

Security
answer

Fuction of the operationg system that provides pasward protected authentication of the user before allowing access.
question

Network Operating System
answer

Software that enhances a basic OS by adding network features.
question

Open Source
answer

A certification standard issued by the OSI that requires that the source code of a computer program be made available free of charge to the general public.

Get instant access to
all materials

Become a Member