Basic Information Technology

A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones.

A small ball that is set in a holder and can be rotated by hand to move a cursor on a computer screen.

Beginner's All-purpose Symbolic Instruction Code.

OCR(Optical Character Recognition) is a computer software designed to translate image of type written test.

CC stands for Carbon Copy.

Monitor, Printer, keyboard, mouse and Speaker etc.

CRT = Cathode Ray Tube

LCD = Liquid Crystal Diode

HTML = Hyper Text Markup Language

DOS = stands for Disc Operating System

ROM = Computer memory which never erased

Oracle = Data Base Program

Microsoft Excel = database program

Scanner = an Input Device

Nano Second = Processing speed of computer is measured in Nano Second

Binary = The computer uses in operations of mathematics-

Windows-7 = The latest version of MS Windows -

Small portable computer.

☛ Graphics Tablets

☛ Cameras

☛ Video Capture Hardware

☛ Trackballs

☛ Bar-code reader

☛ Digital camera

☛ Game-pad

☛ Joystick

☛ Keyboard

☛ Microphone

☛ MIDI keyboard

☛ Mouse (pointing device)

☛ Scanner

☛ Webcam

☛ Touch-pads

☛ Pen Input

☛ Microphone

☛ Electronic Whiteboard

CompactFlash (CF) is a flash memory mass storage device used mainly in portable electronic devices. The format was specified and the devices were first manufactured by SanDisk in 1994. Compact Flash became the most successful of the early memory card formats, surpassing Miniature Card, Smart Media.

The MultiMediaCard (MMC) is a memory card standard used for solid-state storage. Unveiled in 1997 by SanDisk and Siemens AG, it is based on Toshiba's NAND-based flash memory, and is therefore much smaller than earlier systems based on Intel NOR-based memory such as Compact Flash.

A small USB plug-and-play device used to read, copy and backup data from portable flash memory cards such as an SD Card, MiniSD, MicroSD, SIM and others that are used in a wide variety of consumer electronics products.

RAID (originally redundant array of inexpensive disks; now commonly redundant array of independent disks) is a data storage virtualization technology that combines multiple disk drive components into a logical unit for the purposes of data redundancy or performance improvement.

ATX (Advanced Technology EXtended motherboard) The PC motherboard that superseded the Baby AT design. The ATX layout rotated the CPU and memory 90 degrees, allowing full-length expansions to be plugged into all sockets. The power supply blows air over the CPU rather than pulling air through the chassis.

The venerable 3.5-inch floppy disk drive survived for nearly two decades--an eternity in the tech universe. But unless you have a pile of old floppies, you won't need a floppy drive. And if you do find yourself needing a floppy drive, you can always pick up an external, USB-connected drive.

ATA (Advanced Technology Attachment) is the official name that American National Standards Institute group X3T10 uses for what the computer industry calls Integrated Drive Electronics (IDE).

USB (Universal Serial Bus) is the most popular connection used to connect a computer to devices such as digital cameras, printers, scanners, and external hard drives. USB is a cross-platform technology that is supported by most of the major operating systems. On Windows, it can be used with Windows 98 and higher.

A cathode ray tube (CRT) is a specialized vacuum-tube in which images are produced when an electron beam strikes a phosphorescent surface. Most desktop computer displays make use of CRTs. The CRT in a computer display is similar to the"picture tube" in a television receiver.

A small portable computer that accepts input directly on to its screen rather than via a keyboard or mouse.

A mobile phone that performs many of the functions of a computer, typically having a touchscreen interface, Internet access, and an operating system capable of running downloaded apps.