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