Sample Questions
Input / Output Devices:
Input Devices: An input device is any hardware device
that sends data to a computer, allowing you to interact with and control
it. The most commonly used or primary
input devices on a computer are the keyboard and mouse. However, there are dozens
of other devices that can also be used to input data into the computer. Below
is a list of input devices that can be utilized with a computer or a computing
device. Following are some of the
important input devices which are used in a computer −
• Keyboard
• Mouse
• Joy Stick
• Scanner
• Microphone
• Card
Reader
• Bar Code
Reader
Output Devices: An output device is any peripheral that
receives data from a computer, usually for display, projection, or physical
reproduction, an output device that can make a hard copy of any
information shown on your monitor, which is another example of an output
device. Monitors and printers are two of the most common output devices used
with a computer.
Following are some of the
important output devices used in a computer.
• Monitors
• Printer
• Speakers
• Headphones
• Modem
• Fax
Parts of Computer:
There are
two basic parts that make up a computer.
Hardware: Hardware refers to the physical
elements of a computer. This is also sometime called the machinery or the
equipment of the computer. Examples of hardware in a computer are the keyboard,
the monitor, the mouse and the central processing unit. However, most of a
computer's hardware cannot be seen; in other words, it is not an external
element of the computer, but rather an internal one, surrounded by the
computer's casing (tower). A computer's hardware is comprised of many different
parts, but perhaps the most important of these is the motherboard. The
motherboard is made up of even more parts that power and control the
computer. In
contrast to software, hardware is a physical entity. Hardware and software are
interconnected, without software, the hardware of a computer would have no
function. However, without the creation of hardware to perform tasks directed
by software via the central processing unit, software would be useless.
Hardware
is limited to specifically designed tasks that are, taken independently, very
simple. Software implements algorithms (problem solutions) that allow the
computer to complete much more complex tasks.
Hardware
is basically anything that you can touch with your fingers.
• Computer
Case
• CPU (central processing unit...
Pentium chip)
• Monitor
• Keyboard
& Mouse
• Disk
Drive, CD-ROM, DVD,
• Hard
Drive
• Memory
(RAM)
• Speakers
• Printer