Computer… An electronic machine

Monitor

Mouse

Printer (Inkjet)Key Board

CabinetUPS

PPT 8.1.1

Computer’s

INPUT UNITS : Key Board, Mouse, Scanner, Barcode Scanner, Pen Drive, CD, DVD

OUTPUT UNITS : Monitor, Printer, Speaker, Pen Drive, CD, DVD

CPU : Brain of Computer ( Processor )

PPT 8.2.2

PPT 8.1.2

Key BoardLooks typewriterStandard keyboard – 101 to 104 keysPS2 as well as USB connectorVarious brands (e.g. TVSE, Logitech, HP, etc…)Price – Rs. 200/- to Rs. 1500/-Keyboard is the input device that enables user to enter data into a computer, control cursor and pointer locations, and to control the dialog with the computer.

PS2

USB

PPT 8.1.3

MouseJust looks like a MouseOptical MousePS2 as well as USB connectorVarious brands (e.g. Logitech, HP, etc…) A mouse is a handheld pointing device for computers to control the movement of the cursor or pointer on a display screen. Price :150/- to Rs. 500/-

PS2

USB

PPT 8.1.4

MonitorJust looks like a TVType : Digital – Flat – LCD having different sizeCOM port availableVarious brands (e.g. Samsung, Philips, LG, HP, etc…)Price – Rs. 4000/- to Rs. 10000/-Monitor, also known as display screen, is a computer peripheral device capable of showing still or moving images generated by a computer and processed by a graphics card.

PPT 8.1.5

CabinetIt is a Box containing – Mother Board, CPU, SMPS, RAM, PCI Cards, Hard Disc, CD/DVD Drive, Floppy Drive, Ports, etc…

PPT 8.1.6

CPU (Central Processing Unit)A central processing unit (CPU), also known as processor. It processes, instructions and data contained in the software.There are different CPU designs. But in general, the CPU consists of the control unit, the arithmetic and logic unit (ALU) and memory.Price : Rs. 2000/- to 10000/- PPT 8.1.7

SMPS (Switch Mode Power Supply)Switch Mode Power Supplies is the latest technology for high efficiency power supplies. The switch mode power supply, uses a high frequency switch to maintain the output voltage.Price : Rs. 600/- to 4000/- PPT 8.1.8

RAM (Random Access Memory)Random Access Memory (RAM) is a volatile memory whose contents can be accessed in any (i.e., random) order.Higher the RAM – Faster the ComputerPrice : Rs. 700/- (128 MB), Rs. 1500/- (512 MB)

PPT 8.1.9

PCI Cards (e.g. NIC Card, Sound Card, etc…)

Network Interface Card. A physical circuit card to connect a computer or any other device (such as a printer) to a network using RJ-45, Cat 6 & Switches. It is also called a LAN Card.Price : Rs. 150/- to Rs. 500/-(for Network Interface Card (LAN Card))

PPT 8.1.10

Networking DevicesRJ – 45

(Rs. 2/- to 12/-)

Cat -6(Rs. 18/- Per mtr) 16 Port Switch

Crimping Tool

Using the RJ-45 Connectors, Cat 6 Cable and Switches, Networking can be established with computers. PPT 8.1.11

Hard Disk Hard disk drive, also known as hard drive or hard disk, is a magnetic disk to store large amounts of computer data. A hard disk uses rigid rotating platters (disks). It stores and retrieves information from a magnetic surface.Brand Name : Seagate, Samsung, IBM, etc…Price : Rs. 2200/- (80 GB), Rs. 2650/- (160 GB), Rs. 3500/- (250 GB)

PPT 8.1.12

Other Accessories CPU FAN(Rs. 300/- to

700/-)PS2

Connector

USB

Connect

or

Spike Guard

PPT 8.1.13

PrinterPrinters are output devices which help in printing a hard copy.Type : Dot Matrix Printer

(80 – 132 Columns) (Rs. 5000/- to 15000/-)

Laser Jet (Rs. 5000/- to 20000/-)

Ink Jet (Rs. 2500/- to 8000/-)Brands: Epson, TVS, Canon, HP, Samsung PPT 8.1.14

Mother BoardA motherboard is the central or primary circuit board containing a complex electronic system. Sometimes abbreviated as mobo. All Peripherals and devices are connected to the different slots on this. Price : Rs. 2500/- to 15000/-

PPT 8.1.15

Mother BoardAll slots will be serially numbered and functions stated.

1 – Joint Mouse & Key Board here2 – Attached Pen Drive & USB Printer also3 – Attached Printer (Dot Matrix)4 – Attached Processor (CPU)5 – For Graphic Card6 – Battery for Date & Time7 – Slot for Hard Disk & CD-DVD Drive8 – Slot for RAM9 – Slot for Floppy Controller10 – CPU fan power socket11 – SMPS Socket

PPT 8.1.16

UPS (Uninterrupted Power Supply)Electronic and computer-based equipment for high quality uninterrupted power supply.Price : Depends on KVA (Kilo Volt Ampere) and the backup period.Higher the Backup Time – More the Cost

PPT 8.1.17

Computer… An electronic machineThank You…