https://padlet.com/m2827997/m0e382jnnf4r1ary Made with good vibes en-us 2020-11-02 05:17:56 UTC 2025-11-17 22:12:31 UTC hello@padlet.com https://padlet.net/icons/png/1f602.png m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881182961 2020-11-02 05:40:56 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881182961 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881209938 *Main circuit board of the system unit,that contains integrated circuits.
Function:
*Hold many components of the system.
*Provides connectors for other peripherals.]]> 2020-11-02 05:56:22 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881209938 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881212675 *Also called the central processing unit(CPU),interprets and carries out the basic instructions that operate a computer.
*CPU speeds is measured in Gigahertz(GHz)
Component of processor
1)Contol unit
2)Arithmetic]]> 2020-11-02 05:57:57 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881212675 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881214744 *Memory consists of electronic components that store instructions waiting to be executed by the processor,data needed those instructions,and the result of processing data.
Types of memory
*Volatile 
*Nonvolatile]]> 2020-11-02 05:58:57 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881214744 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881490154 Basic Component of Motherboard:
*Processor slot:sloton motherboard that houses a CPU and forms the electrical interface with the CPU.
*Adapter card slot:slot on the motherboard that can hold adapter card.
*Memory slot:slot on motherboard that hold memory modules.]]> 2020-11-02 07:59:43 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881490154 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881619284 *The component of the processor that directs and coordinates most of the operations in the computer.
*The control unit interprets each instructions issued by a program and then initiates the apropriate action to carry out the instructions.]]> 2020-11-02 08:54:14 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881619284 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881632277 *Performs arithmetic,comparison and other operations.
*Arithmetic operations include basic calculations such as addition,multiplication ,subsraction and division.
*Comparison(logical) operation involve comparing one data item with another to determine whether the first item is greater than,equal to or less than the other item. ]]> 2020-11-02 09:00:09 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881632277 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881691578 *The operations performed by the CPU to execute any instruction.
*For each instruction, a processor repeats a set of 4 basic operation
Step 1(Fetch):the control unit obtains the math problem instructions and data from memory
Step 2(Decode):the control unit translates the math problem instructions and send the instructions dand data to ALU.
Step 3(Execute):the ALU performs calculations on the data
Step 4(Store):the results of the math problem are stored in memory(RAM)

]]> 2020-11-02 09:27:37 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881691578 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881725192 *When the computer power is turned off,volatile memory loses its contents.
*Volatile memory is temporary
3 Bacic types of ram
1)DRAM(Dynamic RAM)
  chips must be          reernergized constantly or they lost their contents
2)SRAM(Static RAM)
  chips are faster and more reliable than any variation of DRAM chips
3)MRAM(Magnetoresistive RAM)
   A newer type of RAM that can stores data using magnetic charges instead of electrical charges
 ]]> 2020-11-02 09:42:45 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881725192 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881785318 *Doen not lose its content.
*when power is removed from the computer.
*Permanent and cannot modified
Nonvolatile Memory:ROM
*Refers to memory chip storing permanent data and instruction
*Cannot be modified
Types of rom
1)PROM(Programmable Read Only Memory)
  is a blank ROM chip on which a programmer can write permanently
2)EPROM(Erasable Read Only Memory)
  These chip can be erased and rewritten a number of times.
3)EEPROM(Electrically Erasable Programmable Read only Memory)
  allows a programmer to erase the microcode with an electric signal]]> 2020-11-02 10:11:27 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/881785318 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882502819 *any hardware component allows user to enter data and instructions into computer
*voice input:process of entering input by speaking into a microphone.
*audio input:process of entering any sound into the computer
*video input:process of capturing full motion images.


]]> 2020-11-02 14:48:39 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882502819 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882570179 Function:contains keys user press to enter data and instructions into a computer.
Type:
1)desktop computer keyboard
2)keyboard for mobile device
3)keyboard ergonomics-designated with ergonomic considerations to minimize muscle strain and a host of related problems.]]> 2020-11-02 15:03:59 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882570179 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882598231 Allows user to control a pointer on the screen.
Example:
1)mouse-pointing device that fits under palm of your hand comfortably
2)trackball-pointing device with ball on its top or side
3)touchpad- pointing device that sensitive to pressure and motion
4)pointing stick-pointing device shaped like a pencil eraser that is pressure sensitive

]]> 2020-11-02 15:10:12 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882598231 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882612696 Example:
1)Graphic card-allows user to hand-draw images,animation and graphics
2)Scanner-allow user to converts printed material into a form the computer can used.]]> 2020-11-02 15:13:19 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882612696 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882643372 Allow user to speak into a computer]]> 2020-11-02 15:20:11 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882643372 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882649394 Allow user to capture videos and image ,make phone video calls,broadcast live images over the internet.]]> 2020-11-02 15:21:28 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882649394 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882654049 Input device that sensitive to pressure;a user interact with the computer by touching picture or word on the screen.]]> 2020-11-02 15:22:31 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882654049 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882657154 Allow user to take picture and store them digitally]]> 2020-11-02 15:23:13 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882657154 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882681370 1)Optical Character Recognition(OCR)-allow user to read the character from ordinary documents
2)Optical Mark Recognition-allow user to scans the hand drawn mark document and matches the patterns of light
3)Barcode reader-allow user to read barcode by using laser beam
4)RFID-allow user to reads information on the tag via radio waves
5)Magnetic stripe card reader-allow user to read the magnetic stripe on the back of card
6)MICR-allow user to read text printed with magnetized ink
7)Biometric input device-allow user to authenticates person's identity by veryfying a personal characteristics.]]> 2020-11-02 15:28:30 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882681370 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882686857 Allow user to send data to or receive information from a host computer.
Example: ATM and DVD kiosk]]> 2020-11-02 15:29:39 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882686857 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882693001 Directs movement and acrions of on-screen objects
Example:
1)gamepad
2)joystuck
3)lightgun
4)dance pads
5)motion-sensing controllers]]> 2020-11-02 15:31:03 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882693001 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882697193 Any type of hardware components that conveys information to one or more people.]]> 2020-11-02 15:32:01 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882697193 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882710844 Convey information to user in the form of text,graphic and video
1)LCD monitor-desktop monitor that used liquid crystal display to produce images
2)CRT monitor-a desktop monitor that contain a cathode ray tube
3)Plasma monitor-display device that uses gas plasma technology.]]> 2020-11-02 15:35:10 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882710844 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882723337 An output that conveys information to the user in the form of text and graphics on a physical medium.
Example:
1)ink-jet printer
2)dot-matrix printer
3)laser-printer
4)thermal printers
5)mobile printers
6)label and postage printers
7)plotters
8)large-format printers]]> 2020-11-02 15:37:55 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882723337 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882730721 An output device that convey information to the user in form of music,speech and other sound
Voice output-occurs when you hear person's voice or when the computer talks through the speakers.]]> 2020-11-02 15:39:36 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882730721 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882737465 Output device that takes the text and images displaying on a screen and projects them on a larger screen
Example:
1)LCD projector
2)Digital light processing(DLP) projector]]> 2020-11-02 15:41:09 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882737465 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882742651 Output device that touch-sensitive device,resembling a dry-erase board,that displays the image on a connected computer screen.]]> 2020-11-02 15:42:20 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882742651 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882746606 Send resistance to the device in response to action of the user]]> 2020-11-02 15:43:11 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882746606 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882749447 Provide the user with a physical response from the device.]]> 2020-11-02 15:43:49 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882749447 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882754882 A device that can be both input and output.
Example:
1)touchscreen
2)digital camera
3)headset
4)facsimile]]> 2020-11-02 15:44:59 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882754882 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882779492 •the computer hardware that record and or retrieves items to and from storage media.
•function to store data and programs when they are not being processed
•stores data permanently
•available in form of hard disk,CD,USB drive
~Reading is the process of transferring items from storage medium into memory
~Writing is the process of transferring items from memory to a storage medium.]]> 2020-11-02 15:50:04 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882779492 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882805666 Uses different pattern of magnetization on a magnetically coated surface to store information
Example:
1)Hard disk-A hard disk contains one or more inflexible,circular platters that use magnetic particles to store data,instruction and infromation.
2)Optical Discs Storage-stores information in deformities on the surface of a circular disc and reads this information by illuminating the surface with a laser diode and observing the reflection.
Types of optical disc:
1)Compact disc(CD)
2)Digital Video Disc(DVD)
3)Blu-ray Disc(BD)

]]> 2020-11-02 15:55:50 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882805666 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882819991 -flash memory chips are a tyoe of solid state media and contain no moving parts.
Example:
1)Solid State Drives
2)Memory card-removable flash memory device that you insert and remove from a slot in a computer or card reader.
3)USB flash drives-plug into a USB port on a computer or mobile device.]]> 2020-11-02 15:59:03 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882819991 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882837362 Expansion Slots-socket on the motherboard that can hold an adapter card
Adapter card-enchances functions of a component of the system unit and or provides connections to peripherals.
A peripheral is a device that connects to the system unit and is controlled by the processor in the computer.
Example:modems,printers]]> 2020-11-02 16:02:59 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882837362 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882862026 Types of adapter card:
1)CableCARD-allows viewing of digital cable television channel
2)Disk controller-connect disk drives
3)firewire-connects to FireWire devices
4)HDTV tuner-Allows viewing of HDTV broadcast on the monitor
5)MIDI-Connects musical instrument
6)Modem-connect other computer through telephone lines,cable television lines,or other transmission media
7)Network-connect other computers and peripheral
8)PC-to-TV converter-connect a television
9)Sound-connect speakers to microphone
10)TV tuner-Allows viewing of television channels on the monitor
11)USB-connect to USB devices
12)Video-connect a monitor
13)video capture-connects an analog video camera or VCR]]> 2020-11-02 16:08:23 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/882862026 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/888516095 Typical of flash memory storage and capacities:
1)Solid State Drive(SSD):16GB-256GB
Memory Card
1)Compact Flash(CF):512MB-100GB
2)Secure Digital(SD):512MB-8GB
3)SDHC:4GB-32GB
4)XD Flash Drive:256MB-2GB
1)USB Flash Drive:512MB-100GB]]> 2020-11-04 03:11:02 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/888516095 m2827997 https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/888528364 Storage Capacity betwwen magnetic,optical and flash memory.
Magnetic disk:
1)External hard disk:2TB or more
2)Internal hard disk:160GB to 2TB
3)Removable hard disk:1TB or more
Optical disk:
1)DVD(1 side-1 layer:4.7GB
2)DVD(1 side-2 layers):8.5GB
3)DVD(2 sides-1 layer):9.4GB
4)DVD(2 sides-2 layers:17GB
5)Blu-ray Disc(1 side-1 layer):25GB
6)Blu-ray Disc(1 sides-2 layers):50GB
7)Blu-ray Disc(2 sides-1 layer):50GB
8)Blu-ray Disc(2 sides:2 layers):100GB
9)CD-ROM:650MB to 1GB]]> 2020-11-04 03:19:21 UTC https://padlet.com/m2827997/m0e382jnnf4r1ary/wish/888528364