Essentials of Information Technology(Public College Samana)

What are the main components of computer hardware?

• Operating system, software applications, network cables

• CPU, RAM, storage devices, motherboard, power supply, input/output devices

• Graphics card, sound card, cooling system

• Monitor, keyboard, mouse, printer

What is the purpose of a CPU in a computer system?

• The purpose of a CPU in a computer system is to execute instructions and process data.

• To manage the computer's power supply and cooling system.

• To provide a user interface for software applications.

• To store data permanently in the computer system.

What is the difference between RAM and ROM?

• RAM is non-volatile and used for temporary storage; ROM is volatile and used for permanent storage.

• RAM and ROM are both volatile and serve the same purpose in a computer.

• RAM is used for permanent storage; ROM is used for temporary storage.

• RAM is volatile and used for temporary storage; ROM is non-volatile and used for permanent storage.

Define 'bandwidth' in the context of networking.

• Bandwidth is the maximum rate of data transfer across a network path, measured in bits per second.

• Bandwidth refers to the physical distance between two network devices.

• Bandwidth is the number of devices connected to a network at one time.

• Bandwidth is the amount of data stored on a network device.

What is the smallest measurement used to measure a computer memory ?

• Megabyte

• Terabyte

• Yottabyte

• Bits

Q7 If I connect a monitor to my computer I would need what type of cable?

• Ethernet cable

• Video Graphics Array cable (VGA)

• Universal Serial Bus cable (USB)

• I do not need a cable for this connection.

These can be used to connect almost any type of device, including mice, keyboards, printers, and digital cameras.

• Audio In

• Audio Out

• USB Port

• Monitor Port

In terms of computer memory, what is meant by the term 'volatile'?

• It retains its content when power is cut

• It loses its contents when power is cut

• It is not stable and should not be used

• Memory chips can overheat

whose person is this picture

• charles babbage

• Donald Trump

• Alan Turing

• Tim Berners-Lee

What is this?

• Harddrive

• Tower

• DVD

• Motherboard