BTM 200: Ch. 3A

Example of multitasking

You do word processing while playing music on your computer.

Which are the function keys?

f1, f2, etc.

What does title view allow for on windows 8?

gesture manipulation of on-screen items (touch screens

What do Linux vendors do?

give away software but sell services, products

User-interface features use...

graphics to facilitate a person's interaction with the computer

What's the problem with DOS (Disk Operating System) (original Microsoft OS?

hard-to-use command-driven user interface

How does the file system arrange files?

in a hierarchical manner: Top level is directories (folders). Subdirectories come below folders

Where are files located?

in many places on secondary storage devices; OS locates files and facilitates access to them

Supervisor AKA

kernel

Macros

keyboard shortcuts to activate series of commands

Unix is used by...

large organizations (for airplane design, currency trading

Apple iOS runs on...

mobile devices

Mouse pointer

moved to particular place on screen or to point to little symbol icons

OS manages files and applications... (File management & application management) Excel (always in the workplace): Spreadsheets (raw data put into tabulated form, manipulate them through formulas/functions) Access (most of the time in workplace): Database (relate data to each other) <-- e.g. Google (query, mine, extract info from database)

ok

Linux is what kind of software?

open-source software

Warm boot

restart a computer that is already on

Title bar

runs across the top of the display window and shows the name of the folder you are in.

System software

runs at the most basic level of your computer and enables the application software to interact with the computer and helps the computer to manage its internal and external resources, as well as manage the hardware.

Menu bar

shows the names of the pull-down menus available

Application software

software that has been developed to solve a particular problem for users—to perform useful work on specific tasks or to provide entertainment.

Function keys

special keys located at the top of the keyboard (F1, F2, F3, etc.) that are used alone or with the Ctrl, Alt, and Shift keys to execute software commands

Unix is particularly... (explain

stable- used to run backbone of Internet

Windows 7

still most commonly used OS

Computers are required to perform many different tasks at once- to do...

task management

Supervisor (kernel

the software that manages CPU. Remains in memory while the computer runs. Directs other programs not in memory to perform tasks that support application programs

Desktop

the system's main interface screen

Linux: continual improvements from...

thousands of volunteer programmers

What does OS allow users to do?

to concentrate on applications rather than on complexities of the computer.

Cold boot

turn on computer's "on" system

Boot disk

use a CD or flash drive containing all files to launch OS

How can we find files?

using their pathname. Example: C:/MyDocuments/Termpaper/section1.doc

Mac OS X AKA

"Ten"

-Dont do the btm 200 quizzes on oct.12, it may be due oct. 11 but at midnight. Start the quizzes in advance, u need time for them

-Dont do the btm 200 quizzes on oct.12, it may be due oct. 11 but at midnight. Start the quizzes in advance, u need time for them

What are four network operating systems?

1. Novell's Open Enterprise Server (OES), 2. Windows Server, 3. Unix, Solaris, BSD, and 4. Linux

Three principal categories of operating systems

1. Stand-alone, 2. Network, 3. Embedded

Booting involves what four steps?

1. Turn the computer on, 2. Diagnostic routines test main memory, CPU, and other hardware, 3. Basic Input/Output System (BIOS) programs are copied to main memory, 4. Boot program obtains the OS and loads it into computer's main memory.

Windows early versions

95, 98, 2000, ME, XP, Vista

Boot from the cloud

? Look it up

Rollover

A small text box that explains the icon when you roll your mouse over it.

Mac platforms run...

Apple Macintosh

Graphical User Interface (GUI

Allows you to use a mouse or keystrokes to select icons and commands from menus.

Linux may legally be...

downloaded and used for free, modified for free (as long as modifications aren't copyrighted

Operating systems

An operating system is the principal component of system software in any computing system.

Task

An operation such as storing, printing, or calculating

BIOS

BIOS contains instructions for operating the hardware. The computer needs those instructions to operate the hardware and find a copy of the OS.

Examples of utilities

Backup, virus protection, data recovery, data compression, file defragmentation, disk cleanup, remove temp files

What does the OS manage?

Booting, CPU management, File management, Task management, Security management

What are some legacy systems still used? (outdated but still functional

DOS (Disk Operating System) (original Microsoft OS

Windows Server

Designed to run on network servers in businesses of all sizes, Multiple users share resources, such as data, programs, printer

Device drivers

Device drivers help the computer control peripheral devices.

Toolbar

Displays menus and icons representing frequently used options or commands

Queue

First-in, first-out (FIFO) sequence of data or programs that waits in line for its turn to be processed

Linux

Free (nonproprietary) version of Unix

Linux is the basis of...

Google's Chrome OS

Multitasking

Handling more than one program concurrently

Windows 8

Has both desktop ("classic") and tile views (see pic on slide 29

Every general-purpose computer must have what to run other programs?

OS

Menus

Lists of built-in commands and/or options from which to choose pull-down, cascading, pull-up, pop-up.

Two principal stand-alone systems

Mac platforms, PC platforms

Mac OS 10.9 =

Mavericks (2013

PC platforms run...

Microsoft Windows

Microsoft Windows

Most common operating system for desktop and portable PCs.

Mac OS 10.8 =

Mountain Lion (2011

Memory management

OS keeps track of memory locations to prevent programs and data from overlapping each other. Swaps portions of programs and data into the same memory but at different times. Keeps track of virtual memory.

Mac OS X ("Ten

OS that runs on Apple Macintosh computers; is popular for desktop publishing , graphics, and educational settings. Pioneered the easy-to-use GUI (based on work done at Xerox). Proprietary OS.

Stand-alone operating systems

Often called a desktop operating system, an operating system that works on a single desktop or notebook (laptop) computer.

Security management

Operating Systems permit users to control access to their computers. Users gain access using an ID and password. You set the password the first time you boot up a new computer. After that, when you boot up, you'll be prepared to type in your username and password.

There are three basic components of system software that you need to know about. What are they?

Operating systems, device drivers, and utility programs

CPU management

Queues, Buffers, Spooling

Windows

Rectangular portion of the display screen through which you can view a file of data or an application program.

Utilities

Service programs that perform tasks related to the control and allocation of computer resources.Some come with the OS, others can be bought separately (e.g., Norton SystemWorks, McAfee Utilities

Platform

The particular processor model and operating system on which a computer system is based

Buffer

The place where the data or programs sit while they are waiting

Icon

Small pictorial figures that represent programs, data files, or procedures.

Versions of Unix include...

Solaris, BSD

Device drivers (2nd definition)

Specialized software programs that allow input and output devices to communicate with the rest of the computer system. When you buy a computer, many device drivers come with the system software. Device drivers also come with new hardware (on CDs/DVDs) or can be downloaded from the manufacturer's website.

To spool

The act of placing a print job into a buffer. (Needed because the CPU is faster than printers. The CPU can work on other tasks while the print jobs wait.

Taskbar

The bar across the bottom of the Windows screen that contains the Start button and icons that show open files/programs.

Booting

The process of loading an OS into the computer's main memory

User-interface

The user-controllable display screen you use to interact with the computer, using keyboard or mouse.

Most operating systems use GUIs with what?

Title bar, menu bar, toolbar, taskbar, and windows

Mac OS X is based on...

Unix

Novell's Open Enterprise Server (OES

Used for coordinating microcomputer-based local area networks (LANs) throughout a company or campus. Network OS usually located on a main server

Special-purpose keys

Used to enter, delete, edit data, and to execute commands.

Utility Programs

Utility programs are generally used to support, enhance, or expand existing programs in a computer system.

Open-source software

What Linux has... anyone may make suggested improvements

The main operating systems for general computer users are...

Windows, Mac OS, and Unix/Linux

Unix

a multitasking operating system with multiple users that has built-in networking capability and versions for all kinds of computers

Data file

a named collection of data

Each application program is written to run of top of what?

a particular OS

Program file

a program that exists in a computer's secondary storage

What do you have to memorize for econ?

all the formulas for all chapters. put this on reminders app & START MEMORIZING ASAP

Unix interface is...

command-line interface

Linux uses

command-line-interface or GUI

Operating System (OS)

consists of the low-level, master system of programs that manage the basic operations of the computer

A file is either a ..

data file or program file

Three main features of GUI

desktop, icons, and menus.

What does OS do while you multitask? (e.g. while you do word processing while playing music on your computer

directs processor to alternate time on each program until processing is complete