Categories of computer hardware
- 2. 1. WHY IS MONITOR CONSIDERED AS OUTPUT DEVICE? 2. WHY IS KEYBOARD CONSIDERED AS INTPUT DEVICE?
- 3. HARDWARE is the physical equipment which includes the input devices , central processing unit, and output devices.
- 4. INPUT DEVICES are used to input data into the computer
- 5. Examples of INPUT DEVICE KEYBOARD MOUSE
- 6. Examples of INPUT DEVICE SCANNER GRAPHICS INPUT DEVICES
- 7. Examples of INPUT DEVICE WEB CAMERA GAME PAD
- 8. Examples of INPUT DEVICE JOYSTICK TRACKBALL MICROPHONE
- 9. OUTPUT DEVICES allow the user to see the result of the data that has been processed.
- 11. TYPES OF PRINTER DOT MATRIX LASER JETINK JET PLOTTER
- 13. Examples ofOUTPUTDEVICES PROJECTOR MUSIC OUTPUT VIDEO GRAPHICS VOICE OUTPUT
- 14. STORAGE DEVICES
- 15. 1.Why do we need storage devices?
- 16. STORAGE DEVICES are devices where you can store data, files, and softwares
- 17. FLOPPY DISK Small capacity magnetic storage device 3 ½ inch size 1.44 MB capacity
- 18. OPTICAL DISC are storage media that use laser technology to store data onto a circular plastic or metallic disc 2 common OPTICAL DISC 1. COMPACT DISC 2. DIGITAL VERSATILE DISC
- 19. OPTICAL DISC COMPACT DISC Also known as the CD With a standard capacity of 700MB TYPES OF CD 1. COMPACT DISC-READ ONLY MEMORY 2. COMPACT DISK RECORDABLE 3. COMPACT DISK RE- WRITABLE 4. BLU-RAY
- 20. OPTICAL DISC DIGITAL VERSATILE DISC (DVD) Used extensively to distribute movies, since a full length movie TYPES OF DVD 1. DVD-READ ONLY MEMORY 2. DVD RECORDABLE 3. DVD REWRITABLE 4. MINI CD & DVD
- 21. HIGH CAPACITY OPTICAL MEDIA BLU-RAY DISC is a new generation optical disc Has a high capacity
- 22. EXTERNAL DVD DRIVES Can be used by connecting to the CPU through the use of USB connector
- 23. HARD DISKS Main storage device where data and program are saved, retrieved, modified, then stored again for future us.
- 24. HARD DISKS Main storage device where data and program are saved, retrieved, modified, then stored again for future us. KINDS OF HARD DISK 1. INTERNAL HARD DISK 2. EXTERNAL HARD DISK
- 25. FLASH MEMORY Is a non-volatile memory that can be electrically erased and reprogrammed which is used for general purpose storage and data transfer. KINDS OF FLASH MEMORY 1. FLASH DRIVE 2. SOLID STATE DRIVE 3. MEMORY CARDS
- 26. FLASH MEMORY TYPES OF MEMORY CARDS 1. COMPACT FLASH 2. MEMORY STICK 3. MULTIMEDIA CARD 4. SECURE DIGITAL 5. MINIsd CARD 6. MICROsd
- 27. STORAGE CAPACITY Data in a digital computer is represented in binary digit.
- 29. HIERARCHY OF STORAGE 1. PRIMARY MEMORY 2. SECONDARY STORAGE 3. TERTIARY STORAGE 4. OFF-LINE STORAGE
- 30. PRIMARY STORAGE - This refers to the memory devices that are directly connected and accessible to the CPU. - (ex. Registers, cache memories inside the CPU, & RAM)
- 31. SECONDARY STORAGE - Refers to the storage that is not directly accessible by the CPU.
- 32. TERTIARY STORAGE - Refers to the storage used for very large volume of data that are stored for the future. - Examples are optical jukebox
- 33. OFF-LINE STORAGE - Refers to the memories that are not directly connected or controlled by the computer system.