BIOS
· What is it? - Basic Input Output System · Why is it necessary? – boot up · Important Functions – Check CMOS Set-up. – POST - Power On Self Test. – Display…
Ports
· Serial – Serial port “serializes” data. – Mouse, Modems etc use Serial port. · Parallel – Bits transmitted in parallel. – Used primaraly for Printers. · PS/2 – Used to interface keyboards…
Sound Card
· Converts digital data (bits) into analog sound wave and vice-versa. · Has Digital Signal Processor, RAM, ADC and DAC. · Has jacks for speaker, microphone, line in, line out and joysticks · Choosing…
Video Card
· What’s a Graphics Card? – A modern graphics card is a circuit board with memory and a dedicated processor. – Converts digital information into the pixels to display it on…
Hard Disk
· What is Hard Disk? – Stores data in magnetic disk like medium · Non-volatile mass storage device. · Has very high access time as compared to RAM (10-20 million ns). · Very cheap…
Motherboard
The main circuit board which connects all the device on a microcomputer; Also called main board or system board · Chipset – The chipset controls the system and its capabilities. It…
RAM
· What is RAM? – Random Access Memory. – RAM is volatile. · Broadly classified as – Static RAM. – Dynamic RAM. · Static RAM – Fast, has lower access time. – Typical…
Processor
· Processor is the brain of your computer. · Some key concepts –Clock : In a computer, clock speed refers to the number of pulses per second that sets the tempo for…
Computer Software
Computer software is the set of programs that makes the hardware perform a set of tasks in particular order. Hardware and software are complimentary to each other. Both have to…
Input / Output Devices
These devices are used to enter information and instructions into a computer for storage or processing and to deliver the processed data to a user. Input/Output devices are required for…
