hardware lesson 2 computer components. path of information through a computer input device ram cpu...
TRANSCRIPT
![Page 1: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/1.jpg)
Hardware Lesson 2
Computer Components
![Page 2: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/2.jpg)
Path of Information Through Path of Information Through a Computera Computer
RAM
Output Device
![Page 3: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/3.jpg)
Power supply (the heart)
• Takes electricity from the wall outlet and converts it into a current that works for the computer.
• When your computer is turned on, the power supply carries the converted electricity to other components inside the computer.
![Page 4: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/4.jpg)
Motherboard (the spine)
• Houses all of the other circuit boards (expansion cards) and the processor (CPU).
• Every component in the computer must connect to the motherboard.
• Each model of motherboard accepts different types of processors and expansion cards.
![Page 5: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/5.jpg)
CPU or Central Processing Unit (the brain)
• The CPU controls the hardware and tells the other parts what to do.
• The type of CPU in a computer also determines how fast that computer can operate.
• A CPU generates a lot of heat, so there is usually a small fan nearby to cool it down.
More
![Page 6: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/6.jpg)
Expansion Cards
• Anything added to a computer.• Includes sound cards, video cards, network (or
LAN) cards, modems, serial cards and parallel cards, etc. that attach to the computer.
![Page 7: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/7.jpg)
BIOS or Basic Input Output System Chip
• Wakes up the computer when you turn it on and reminds it what parts it has and what they do.
• Stores the date and time, and the basic hardware settings for the computer.
• Had a battery so the BIOS is not lost when the computer is turned off.
![Page 8: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/8.jpg)
Ports• These are places on the back (or side) of the
computer where you plug in hardware. The keyboard, mouse, monitor, and printer all plug into ports.
• PS2 (mouse and keyboard)• Serial (mouse, communications device)• Parallel (LPT: printer / scanner)• Video (video cable)• LAN and MODEM (network or phone line)• USB (Universal Serial Bus) (anything)
![Page 9: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/9.jpg)
Looking at Ports
or scanner
For graphics
![Page 10: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/10.jpg)
Storage
• Saved files• Internal or external• Include
– Hard disk– Floppy disk– CD or DVD/ROM– USB or Flash sticks– and more
![Page 11: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/11.jpg)
Storage• Hard disk drive
– Internal or external– Consists of a set of stacked
"disks," with data recorded electromagnetically in circles or "tracks" on the disk.
– A "head" works like a phonograph arm; it reads and writes information on the tracks.
– Files and applications are stored on the hard drive
![Page 12: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/12.jpg)
Storage
• Floppy disk drive– Reads and writes to floppy disks– Long or short-term file storage– 1.4 MB of data– Original disks were 8 inches across.
The next generation made was 5 ¼ inches, and now they are 3 ½ inches across.
![Page 13: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/13.jpg)
CD-ROM
• Compact Disc, Read-Only Memory• Can store text files and audio (or music) • Max. 650 - 700 MB of data, or 74 - 80 minutes
of music
• Internal or external• Application software
is often installed FROMa CD ONTO a harddrive
![Page 14: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/14.jpg)
DVD-ROM
• Digital Video Disc, Read-Only Memory
• Best for Multimedia (movies and games)• Max. 4.7GB to 17GB
• Faster than CD-ROM
![Page 15: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/15.jpg)
Flash memory
• EEPROM chips - Electronically Erasable Programmable Read Only Memory.
• a grid of columns and rows with a cell that has two transistors at each intersection
• See more at How Stuff Works
![Page 16: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/16.jpg)
Examples of Flash Memory
• Your computer's BIOS chip
• CompactFlash (digital cameras)
• SmartMedia (digital cameras)
• Memory Stick (digital cameras)
• PCMCIA Type I and Type II memory cards (used as solid-state disks in laptops)
• Memory cards for video game consoles
![Page 17: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/17.jpg)
Inside a Mini-Tower
![Page 18: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/18.jpg)
Review Questions
• Answer the questions on the review sheet.
• We’ll go over them when everyone is finished.
![Page 19: Hardware Lesson 2 Computer Components. Path of Information Through a Computer Input Device RAM CPU Output Device](https://reader035.vdocuments.site/reader035/viewer/2022062717/56649e5f5503460f94b596b8/html5/thumbnails/19.jpg)
Hardware Lesson 2
Computer Components