below: Serial Port: To connect the external devices, found in old computers. Parallel Port: To connect the printers, found in old computers. USB Ports: To connect external devices like cameras, scanners, mobile phones, external hard disks and printers to the computer. USB .
is the third major version of the Universal Serial Bus (USB) standard to connect computers with other electronic gadgets as shown in Figure . . USB . can transfer data up to Giga byte/second.
USB3. and USB . are also released. Figure .
USB . Ports VGA Connector: To connect a monitor or any display device like LCD projector. Audio Plugs: To connect sound speakers, microphone and headphones. PS/ Port: To connect mouse and keyboard to PC.
SCSI Port: To connect the hard disk drives and network connectors. Mouse Port Keyboard Port VGA Port HDMI Port USB Port Network Port Serial Port Power Supply Fig . Ports and Interfaces High Definition Multimedia Interface (HDMI) High-Definition Multimedia Interface is an audio/video interface which transfers the uncompressed video and audio data from a video controller, to a compatible computer monitor, LCD projector, digital television etc. Micro HDMI HDMI Figure .
HDMI Ports Activity Student Activity • Identify the components of a computer • Connecting external devices like printer/LCD projector. Teacher Activity • Show the components of a computer • Display different ROM ICs • Display the flash memory • Demonstrate various ports and their usage Part – I Choose the correct answer . Which of the following is sadi to be the brain of a computer? (a) Input devices (b) Output devices (c) Memory device (d) Microprocessor .
Which of the following is not the part of a microprocessor unit? (a) ALU (b) Control unit (c) Cache memory (d) register . How many bits constitute a word? (a) (b) (c) (d) determined by the processor used.
. Which of the following device identifies the location when address is placed in the memory address register? (a) Locator (b) encoder (c) decoder (d) multiplexer . Which of the following is a CISC processor?