BASIC KNOWLEDGE OF COMPUTER SCIENCE

• Definition Of Computer
• Types Of Computers
• Classification Of Computers
• Characteristics Of Computers
• Logical Organization Of Computers
• Input Devices
• What is Mouse?
• What is Optical Scanner Or Digitizer?
• What is Optical Mark Reader?
• What is Optical Barcode Reader?
• What is Optical Character Recognition(OCR)?
• Output Devices
• What is Printer?
• What is Impact Printers?
• What is Non Impact Printers?
• Monitors And Types Of Monitors
• Central Processing Unit(CPU)
• Control Unit(CU)
• Arithmetic And Logical Unit(ALU)
• Memory Unit(MU)
• Memory Unit(MU)-Primary(Main) Memory
• Memory Unit(MU)-Secondary Memory
• Memory Hierarcy