Friday, 27 March 2015

MCQ on Computer Fundamental

MCQ SET 1

 Which of the following devices can be sued to directly image printed text?
 OCR

 The output quality of a printer is measured by
 Dot per sq. inch

 In analog computer
 Input is never converted to digital form

 In latest generation computers, the instructions are executed
 Both sequentially and parallel

 Who designed the first electronics computer – ENIAC?
  J. Presper Eckert and John W Mauchly

 Who invented the high level language c?
 Dennis M. Ritchie

 Personnel who design, program, operate and maintain computer equipment refers to
 Peopleware

 Human beings are referred to as Homosapinens, which device is called Sillico Sapiens?
 Computer

 An error in software or hardware is called a bug. What is the alternative computer jargon for it?
 Glitch

 IMB launched its first personal computer called IBM-PC in 1981. It had chips from Intel, disk drives from Tandon, operating system from Microsoft, the printer from Epson and the application software from everywhere. Can you name the country which contributed the video display?
 Taiwan

 Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?
Motherboard

 In most IBM PCs, the CPU, the device drives, memory expansion slots and active components are mounted on a single board. What is the name of this board?
 Motherboard

 The system unit of a personal computer typically contains all of the following except:
Modem

 A computer program that converts an entire program into machine language is called a/an
Compiler

 A computer program that translates one program instructions at a time into machine language is called a/an
Interpreter

The ALU of a computer responds to the commands coming from
Control section

All modern computer operate on

 Data

 Instructions and memory address are represented by
 Binary codes

Which of the following code used in present day computing was developed by IBM Corporation?
 EBCDIC Code

 What is the latest write-once optical storage media?
 CD-ROM disk

The two kinds of main memory are:
 ROM and RAM

 A kind of serial dot-matrix printer that forms characters with magnetically-charged ink sprayed dots is called
 Ink-jet printer

Which printer is very commonly used for desktop publishing?
Laser printer

An output device that uses words or messages recorded on a magnetic medium to produce audio response is
 Voice response unit

 A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is
Buffer

 Programs designed to perform specific tasks is known as
 Application software

 Time during which a job is processed by the computer is
Execution time

a computer which CPU speed around 100 million instruction per second and with the word length of around 64 bits is known as
Super computer

 An approach that permits the computer to work on several programs instead of one is
 Over lapped processing

 A directly accessible appointment calendar is feature of a … resident package
Memory

Which of the following processors use RISC technology?
Power PC

 Current SIMMs have either … or … connectors (pins)
 30 or 72

 Which of the following is not an input device?
 COM (Computer Output to Microfilm)

 EBCDIC can code up to how many different characters?
 256

 Which is used for manufacturing chips?
 Semiconductors

 The computer code for the interchange of information between terminals is
 ASCII

 A byte consists of
 Eight bits

 A hybrid computer
 Resembles both a digital and analog computer


Cloud Computing

Cloud computing is a computing term or metaphor that evolved in the late 2000s, based on utility and consumption of computing resources. Cloud computing involves deploying groups of remote servers and software networks that allow centralized data storage and online access to computer services or resources. Clouds can be classified as public, private or hybrid
Cloud computing, or in simpler shorthand just "the cloud", also focuses on maximizing the effectiveness of the shared resources. Cloud resources are usually not only shared by multiple users but are also dynamically reallocated per demand. This can work for allocating resources to users. For example, a cloud computer facility that serves European users during European business hours with a specific application (e.g., email) may reallocate the same resources to serve North American users during North America's business hours with a different application (e.g., a web server). This approach should maximize the use of computing power thus reducing environmental damage as well since less power, air conditioning, rack space, etc. are required for a variety of functions. With cloud computing, multiple users can access a single server to retrieve and update their data without purchasing licenses for different applications.
The term "moving to cloud" also refers to an organization moving away from a traditional CAPEX model (buy the dedicated hardware and depreciate it over a period of time) to the OPEX model (use a shared cloud infrastructure and pay as one uses it).
Proponents claim that cloud computing allows companies to avoid upfront infrastructure costs, and focus on projects that differentiate their businesses instead of on infrastructure. Proponents also claim that cloud computing allows enterprises to get their applications up and running faster, with improved manageability and less maintenance, and enables IT to more rapidly adjust resources to meet fluctuating and unpredictable business demand Cloud providers typically use a "pay as you go" model. This can lead to unexpectedly high charges if administrators do not adapt to the cloud pricing model.
The present availability of high-capacity networks, low-cost computers and storage devices as well as the widespread adoption of hardware virtualization, service-oriented architecture, and autonomic and utility computing have led to a growth in cloud computing.Companies can scale up as computing needs increase and then scale down again as demands decrease



Wednesday, 4 March 2015

MS WORD Short Cut Keys

Shortcut
Description
Ctrl + 0
Toggles 6pts of spacing before a paragraph.
Ctrl + A
Select all contents of the page.
Ctrl + B
Bold highlighted selection.
Ctrl + C
Copy selected text.
Ctrl + D
Open the font preferences window.
Ctrl + E
Aligns the line or selected text to the center of the screen.
Ctrl + F
Open find box.
Ctrl + I
Italic highlighted selection.
Ctrl + J
Aligns the selected text or line to justify the screen.
Ctrl + K
Insert link.
Ctrl + L
Aligns the line or selected text to the left of the screen.
Ctrl + M
Indent the paragraph.
Ctrl + P
Open the print window.
Ctrl + R
Aligns the line or selected text to the right of the screen.
Ctrl + S
Save the open document. Just like Shift + F12.
Ctrl + T
Create a hanging indent.
Ctrl + U
Underline the selected text.
Ctrl + V
Ctrl + X
Cut selected text.
Ctrl + Y
Redo the last action performed.
Ctrl + Z
Undo last action.
Ctrl + Shift + L
Quickly create a bullet point.
Ctrl + Shift + F
Change the font.
Ctrl + Shift + >
Increase selected font +1pts up to 12pt and then increase font +2pts.
Ctrl + ]
Increase selected font +1pts.
Ctrl + Shift + <
Decrease selected font -1pts if 12pt or lower; if above 12, decreases font by +2pt.
Ctrl + [
Decrease selected font -1pts.
Ctrl + / + c
Insert a cent sign (¢).
Ctrl + ' +
Insert a character with an accent (grave) mark, where is the character you want. For example, if you wanted an accented è you would use Ctrl + ' + e as your shortcut key. To reverse the accent mark use the opposite accent mark, often on the tilde key.
Ctrl + Shift + *
View or hide non printing characters.
Ctrl +
Moves one word to the left.
Ctrl +
Moves one word to the right.
Ctrl +
Moves to the beginning of the line or paragraph.
Ctrl +
Moves to the end of the paragraph.
Ctrl + Del
Deletes word to right of cursor.
Ctrl + Backspace
Deletes word to left of cursor.
Ctrl + End
Moves the cursor to the end of the document.
Ctrl + Home
Moves the cursor to the beginning of the document.
Ctrl + Spacebar
Reset highlighted text to the default font.
Ctrl + 1
Single-space lines.
Ctrl + 2
Double-space lines.
Ctrl + 5
1.5-line spacing.
Ctrl + Alt + 1
Changes text to heading 1.
Ctrl + Alt + 2
Changes text to heading 2.
Ctrl + Alt + 3
Changes text to heading 3.
Alt + Ctrl + F2
Open new document.
Ctrl + F1
Open the Task Pane.
Ctrl + F2
Display the print preview.
Ctrl + Shift + >
Increases the selected text size by one.
Ctrl + Shift + <
Decreases the selected text size by one.
Ctrl + Shift + F6
Switches to another open Microsoft Word document.
Ctrl + Shift + F12
Prints the document.
F1
Open Help.
F4
Repeat the last action performed (Word 2000+)
F5
Open the Find, Replace, and Go To window in Microsoft Word.
F7
Spellcheck and grammar check selected text or document.
F12
Save As.
Shift + F3
Change the text in Microsoft Word from uppercase to lowercase or a capital letter at the beginning of every word.
Shift + F7
Runs a Thesaurus check on the selected word.
Shift + F12
Save the open document. Just like Ctrl + S.
Shift + Enter
Create a soft break instead of a new paragraph.
Shift + Insert
Paste.
Shift + Alt + D
Insert the current date.
Shift + Alt + T
Insert the current time.
In addition to keyboard shortcuts, users can also utilize their
mouse to perform some common actions.
The following section contains examples of mouse shortcuts.
Mouse shortcuts
Description
Click, hold, and drag
Selects text from where you click and hold to the point you drag and let go.
Double-click
If double-clicking a word, selects the complete word.
Double-click
Double-clicking on the left, center, or right of a blank line makes the alignment of the text left, center, or right aligned.
Double-click
Double-clicking anywhere after text on a line will set a tab stop.
Triple-click
Selects the line or paragraph of the text that the mouse triple-clicked on.
Ctrl + Mouse wheel
Zooms in and out of document.