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6 2.
5 3. 4.
5. (System Software)
6.
(System Software) ROM (Read Only Memory) IPL 7.
(System Software) 8. (System Software)
9. (System Software)
10. (Package) 11. (Application Software) 12. (Package)
13.
(Package) 14. (Package)
15.
(Package) 16. (Package)
17.
18. (Character)(Field) (Record) (File) File 19.
20.
21.
22.
23.
24. 25. Central Processing Unit / CPU
26.
27. (CU)
28. (ALU)
29. Logic Circuits " "" "" "" ""1""0"2 1.(combination logic)2.(sequential logic) 30. CPU InstructionDecoder Instruction Resister CU StorageResister -ALU 31. Memory Unit
32. 1. (Volatile memory) RAM (Random Access Memory) CPUSD RAM DDR RAM 33. 2. (Nonvolatile memory) CPU ROM (Read Only memory) 34. (Magnetic Tape) (Mylar)(Iron Oxide) 2 1. (Reel tape) 2. (Tape cassette and cartridges) 35. (Secondary Storage) CPU 2 1. (Sequential access media) 2.(Direct access media) 36. -
37. (MagneticDisk) Random track Disk Pack 38.
1.(Soft disk or Floppydisk) Oxide disk track track sectorsector 39. (CD-ROM) Compact Disk-Read Only Memory Optical Mediatrack sector 40. 2. (Magnetic Disk or Hard Disk) (platters)Spindle 3600 41. (Input Unit) (keyboard)(mouse) 42. (Terminal) 101 2 1. 2. 43. (Mouse) XY (mouse pad) 44. (Track Ball) 45. (Touch - Sensitive Screens)
46. (Joystick) 2Potentiometers1 / / 47. (Light pens) Computer-Aided Design (CAD) 48. (OCR-Optical Character Recognition) Optical Device ISBN OCR - (Optical Marks)- (Optical Character) - (HandWritten Characters) - (Bar Codes) 49. (Optical Mark Readers) OMR 50. Wand Reader OCR-A 51. Hand Written Character Device Optical Scanner 52. Bar Code Reader
53. (Output Unit)
54. (Monitor)
55. (Printer) Hard Copy 3 1.Serial Printer 2. Line Printer 3. Page Printer 56. Serial Printer
40-450cps (Character per second)
57. Line Printer 1000 -5000lpm (Line per minute) 3 1.The Band Printer 2. The Chain Printer Band Printer 3.The Drum PrinterDrum 58. (Plotter) 1. (Drum Plotter) 2. (Flatbed Plotter) 3. (Electrostatic Plotter) 59. Page Printer (Laser Printer) 6 (Toner) 60.
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