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Session 1: Computer Hardware & Software

Discuss “The City Inside” and the components inside the CPU like the. | Computer Hardware & Software Session 1 Computer Hardware Objectives Discuss “The City Inside” and the components inside the CPU like the - Mother board Bus Cards Ports Memory Hard Disk Drive Floppy Disk Drive Power Supply Unit Computer Clock (Real Time Clock) Objectives(Contd.) Classify Computers Identify a typical PC Configuration of - An ideal PC Multimedia – The magic of technology “The City Inside” The city inside shows the Bus - transports data between the processor and other components Motherboard - consists of a complex group of circuits Controllers - controls the input/output work in the computer “The City Inside”(Contd.) Cards - fixed on slots contained in buses to enable the expansion of the computer Ports - entry and exit points of buses “The City Inside”(Contd.) Memory The hard disk drive The floppy disk drive The power supply unit The computer clock Memory Memory is classified into two types Primary Memory RAM ROM Secondary Memory RAM Random Access Memory (RAM) Essentially a read/write memory While writing new data previous data gets overwritten RAM is volatile memory RAM may be classified as: Dynamic RAM Static RAM ROM Read Only Memory Essential functions are stored on the ROM Data can be read randomly from the ROM Data cannot be written onto the ROM Data is hardwired onto these chips at the time of manufacture It is part of the computer system ROM is non-volatile storage ROM Though data is hardwired, the user is able to program the following types of ROM : PROM EPROM EEPROM PROM Programmable Read Only Memory Chips are programmed by burning a fusible link within selected cells A fused link cannot be restored Operations once written cannot be erased EPROM Erasable Programmable Read Only Memory Possible to erase and reprogram the ROM Erasing is done by exposing the EPROM to ultraviolet rays of a specific frequency EEPROM Electrically Erasable Programmable Read Only Memory Can be programmed through special electric pulses Circuitry can be integrated into | Computer Hardware & Software Session 1 Computer Hardware Objectives Discuss “The City Inside” and the components inside the CPU like the - Mother board Bus Cards Ports Memory Hard Disk Drive Floppy Disk Drive Power Supply Unit Computer Clock (Real Time Clock) Objectives(Contd.) Classify Computers Identify a typical PC Configuration of - An ideal PC Multimedia – The magic of technology “The City Inside” The city inside shows the Bus - transports data between the processor and other components Motherboard - consists of a complex group of circuits Controllers - controls the input/output work in the computer “The City Inside”(Contd.) Cards - fixed on slots contained in buses to enable the expansion of the computer Ports - entry and exit points of buses “The City Inside”(Contd.) Memory The hard disk drive The floppy disk drive The power supply unit The computer clock Memory Memory is classified into two types Primary Memory RAM ROM Secondary Memory RAM Random Access Memory (RAM) .