- Bar Code Reader
- Keyboard
- Optical Mark Reader
- Mouse
- a
-
Norman Joseph Woodland invented the bar-code in US in 1951. It took 20 years for development after invention.
Computer Operator
Computer Operator Current & Past Papers have uploaded on ETEST Website. Computer Operator Papers of All Departments i.e. Police Department, Rescue 1122 Department,Revenue Department, Education Department and etc are included in this section of ETEST Website. We update all sections of ETEST Website on daily basis.
“Adobe Flash” is an example of:
- Driver of System
- Multimedia Software
- Programming Software
- None of these
- b
WI-FI is an abbreviation of:
- Wireless Fidelity
- Wireless Force
- Wide Frequency
- Wireless Function
- a
-
Dr. John O. Sullivan and his colleagues started practice to invent WIFI in 1992 and got success in 1996.
…….. Is a silicon chip which carries out set of instructions and processes the data efficiently and accurately.
- Hard Disk
- Processor
- RAM
- Mouse
- b
-
Processor was invented in 1970.
VGA stands for:
- Video Graphic Access
- Video Gross Array
- Video Graphic Action
- Video Graphic Array
- d
-
VGA standard was developed by IBM (International Business Machine) in 1987.
In MS Word 2007,which shortcut key is used to switch to Print Layout view?
- Alt+Ctrl+O
- Alt+Ctrl+P
- Alt+Shift+P
- Alt+Ctrl+N
- b
USB stands for:
- Universal Serial Bus
- Universal Standard Bus
- Universal Serial Background
- None of these
- a
-
USB invented by Ajay Bhatt.
Inventor of Computer Mouse was an:
- American
- Indian
- Russian
- Britain
- a
-
Douglas Carl Engelbart invented the computer mouse in 1964.
Where is the address of the active cell displayed?
- Row Heading
- Name Box
- Status Bar
- Formula Bar
- b
RAM stands for:
- Read Accurate Memory
- Random Access Memory
- Read only Memory
- Read Access Memory
- b
-
RAM is temporarily memory of computer
ROM stands for Read Only Memory. ROM is permanent memory of computer.