Lesson 1: Operating Systems

Disk Operating System (DOS):

A text-based software; enter single line comments to perform tasks like managing files & starting programs.

Application software:

Allows users to create documents or complete specific tasks.

Service Packs:

Collections of updates that is typically released after enough updates have accumulated to warrant the release.

What was the original operating system developed for PCs?

Disk Operating System (DOS)

Patches:

Files of programming code that is inserted into an existing program to fix a known problem, or bug.

Updates:

Files or collections of software tools that resolve security issues and improves performance.

What makes it possible for users to "point and click"?

Graphical User Interface

What updates are optional?

Software that can be installed manually; mew or trial Microsoft software.

What updates are recommended?

Software updates and new or improved features.

What is the last power switch you turn on when starting the computer?

System unit

Software:

The operating system and application programs that run on the computer.

Hardware:

The physical components and devices that comprise the computer.

Booting:

The process of turning on the computer and loading the operating system.

Why are operating systems routinely updated?

To increase security, fix bugs, and adapt to new hardware.

Why were patched designed?

To provide an immediate solution to a particular programming problem; Temporary solutions.

Most operating systems use an integrated graphical user interface (GUI) for interacting with users EXCEPT?

UNIX

ROM-BIOS chips:

Used to make the bootup procedure possible; loads the instructions stored in ROM-BIOS into memory; Checks and counts the memory.

Where can the updates for Windows service be downloaded from?

From the Window Updates web site.

What are some examples of Operating Systems?

-DOS -Windows -UNIX -Linux -Mac OS.

Input Devices:

-Keyboard -Mouse

What are the two functions of an operating system?

-Manages the input devices, output devices, and storage devices. -Manages the files stored on the computer.

What are some examples of an Application software?

-Microsoft Word -Adobe Photoshop -Windows Media Center -Internet Explorer

Output Devices:

-Monitor -Printer

Storage Devices:

-Hard drives -Flash drives -Optical drives

What does every computer require to function?

An operating system.

What do service packs contain?

Contain all previous updates.

What must a computer do first before it can load any application software?

Load the operating system into memory.

What does a computer do first when it is powered on?

Runs a set of self-diagnostic programs and then loads the operating system into memory.

What updates are important?

Security and critical updates.

Interoperability:

The ability for different operating systems to communicate and share information with one another.

Graphical User Interface (GUI):

aka "gooey"; makes it possible for a user to "point and click"; Many functions and commands are represented by menus and clickable buttons or icons.

Operating System:

aka environment; A collection of programs designed to control all the hardware and application software on the computer, and to manage the computer's interaction and communication with users.

What is the name of the service that provides updates for the Windows operating system?

Windows Updates