Transcript Introduction to Computers

Introduction to Computers
Instructor: Brad Atkinson
Have you ever
felt like this?
How about
this?
• A computer is an electronic device that has the
ability to store, retrieve, and process data, and
can be programmed with instructions that it
remembers. The physical parts that make up a
computer are called hardware. Programs that
tell a computer what to do are called software.
Areas of Discussion
• Hardware
• Software
Hardware
Hardware
• The physical components which make up a
computer system. The keyboard, mouse, CPU,
memory, storage devices, printer, and monitor
are a few of these components.
Terms
• CD-ROM – Stores information/instructions on disk in a read
only format.
• Floppy Disk – Made of thin, Mylar plastic that is used to store
information.
• Hard Drive – A disk drive that reads from and writes to a hard
disk. The Hard Drive stores large amounts of information
magnetically, also known as the C drive.
• Peripheral – Hardware device connected to the computer.
• Ethernet Card – A network adapter that enables a computer to
connect to a network.
• Modem – An electronic device for converting between serial
data from a computer and an audio signal suitable for
transmission over telephone lines.
Terms
• Monitor – Also called a display, or screen, where information is
displayed in pixels.
• CPU (Central Processing Unit) – Processes data and
instructions, performing calculations on the data. Also called
the Processor.
• Memory – Temporary storage space on a chip inside the
computer used to hold programs and data temporarily while
being accessed.
• RAM (Random Access Memory) – The amount of RAM
determines the number of computer programs which you can
run at once and how fast the programs will be processed.
Inside your computer
Processor
Memory
Inside your computer
CD-ROM Drive
Floppy Drive
Hard Drive
Hooking up your Premio computer
Power Cord
Keyboard
Network
Mouse
USB
Parallel
Monitor
Speakers
Front of Dell Desktop
1. Front-panel door
2. Headphone connector
3. USB connectors
4. CD/DVD drive eject button
5. Floppy-drive eject button
6. Floppy-drive activity light
7. Hard-drive activity light
8. Power button
9. Power light
10. Front-panel door
Back of Dell Desktop
1. Back panel connectors
2. Security cable slot
3. Padlock ring
4. Card slots
5. Voltage selection switch
6. Power connector
Front of Dell Tower
1. CD/DVD-drive eject button
2. Hard-drive activity light
3. Front-panel door
4. Front air vents
5. Headphone connector
6. USB connectors
7. Power button
8. Power light
9. Floppy-drive activity light
10. Floppy-drive eject button
Back of Dell Tower
1. Power connector
2. Voltage selection switch
3. Back panel connectors
4. Card slots
Connections on Dell Computer
1. Serial connector
2. Link integrity light
3. Network adapter connector
7. Microphone connector
8. USB connectors
9. Diagnostic lights
4. Network activity light
5. Line-in connector
6. Line-out connector
10. Video connector
11. Parallel connector
Connecting the Printer
Parallel connector
USB connector
Software
Software
• Instructions which ‘tell’ the computer how to
process information. There are two types of
software; Operating System and Application
Software. Windows is an examples of an
Operating System. Application software are
programs which fall under some of the following
categories: utility, educational, data
management, multimedia, productivity.
Terms
• Icon – Picture displayed on the screen which
represents a program, file, or folder, which is
accessed by double-clicking with the mouse.
• File – A file is a collection of data, or
information, stored on your computer or disk.
• Folder – A folder is a place where you can
organize files or documents. A folder is also
known as a directory.
Size & Speed Info
• These sizes refer to the size of memory, hard drive
space, and files on your computer.
• Kilobyte (KB) – 1 thousand bytes.
• Megabyte (MB) – 1 million bytes.
• Gigabyte (GB) – 1 billion bytes.
• These sizes refer to the processor speed of a
computer.
• Megahertz (MHz) – Millions of cycles per second.
• Gigahertz (GHz) – Billions of cycles per second.
Novell Login on Windows 98
Always click “OK” to login to the network,
otherwise you won’t be able to access such
programs as AR or A+.
Novell Login on Windows XP
Click “OK” for normal login.
Click “Advanced” to login as
Teacher on the computer.
Novell Login on Windows XP
Click on the
“Windows”
tab.
Change
Student to
Teacher.
Novell Login on Windows XP
Click “OK”
to login as
Teacher.
Novell Login on Windows XP
Check “Workstation only” only when
the server is down and you still need
into your computer.
Desktop
Icons
Desktop
Taskbar