Answer the following questions: 20 1. Name the two machines designed by Charles Babbage. 2. Name any two early computing devices. 3. What is an input device? Give examples. 4. Name two commonly used operating system. 5. Name two icons on the desktop. 6. What is the Windows Desktop? What does it contain? 7. What is the use of the MS-Paint program? 8. What is the difference between the Line and Pencil tool? 9. Which tools are used for coloring our drawings? 10. Name two Windows Operating Systems.
Answers
Answer:
1.ans- Difference engine and analytical engine.
2.ans- Abacus pascaline and napier's bones.
3.ans- An input device is computer hardware which is used to enter data for processing. Ex- keyboard, mouse, etc.
4.ans- Microsoft windows and Linux.
5.ans- Recycle bin and Internet explorer.
6.ans- Desktop is the main screen area that you see after you turn on your computer and log on to windows. It contain start button, taskbar icons, windows notification area, time and date, etc.
7.ans- Ms paint is used to draw, colour and edit pictures.
8.ans- Pencil tool is used to draw free hand lines while line is used to draw straight lines.
9.ans- Fill with color is used to colour our drawing.
10.ans- Windows 7 and windows 11.
Answer:
1.Charles Babbage (1791-1871), computer pioneer, designed two classes of engine, Difference Engines, and Analytical Engines.
2.The earliest known calculating device is probably the abacus. It dates back at least to 1100 bce and is still in use today, particularly in Asia. Now, as then, it typically consists of a rectangular frame with thin parallel rods strung with beads.
3.In computing, an input device is a peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance. Examples of input devices include keyboards, mice, scanners, digital cameras and joysticks
4.The three most common operating systems for personal computers are Microsoft Windows, macOS, and Linux. Modern operating systems use a graphical user interface, or GUI (pronounced gooey).
5.Common desktop icons include Computer, your personal folder, Network, the Recycle Bin, Internet Explorer, and Control Panel.
6.The desktop is the main screen area that you see after you turn on your computer and log on to Windows. ... It also contains the Start button , which you can use to access programs, folders, and computer settings. On the side of the screen, Sidebar contains small programs called gadgets
7.Microsoft Paint or 'MS Paint' is a basic graphics/painting utility that is included in all the Microsoft Windows versions. MS Paint can be used to draw, colour and edit pictures, including imported pictures from a digital camera
8.The pencil tools is used to draw free hand lines with a hard edge and draws single pixel at a time. If you drag a pencil the it would create one pixel wide line. It you press left mouse button using use the pencil tool it would draw the pixels in primary colour. ... While line tools is used for drawing straight line.
9.The Fill with colour tool is used to fill colour in a drawing. You can select the colour from the colour palette. The brush is used to paint and draw areas of the picture
10.Windows 2000 (February 2000) ...
Windows XP (October 2001) ...
Windows Vista (November 2006)
Explanation