Computer Peripheral Devices Quiz

Computer Peripheral Devices

• The CPU is not a peripheral device. Peripheral devices are input/output devices.

System Unit Ports

• A port is a place in a system unit that allows data transfer between devices and the computer.

Read-Only Memory (ROM)

• ROM is computer memory where users cannot write new information or instructions.

Groups of Bits

• A group of 8 bits is called a byte.

Megabyte Conversion

• A megabyte (MB) is equivalent to 1024 kilobytes (KB).
• A megabyte (MB) is equivalent to 1024 * 1024 bytes.

Device Drivers

• Device drivers allow input/output devices to communicate with the rest of the computer system.

Memory Types

• The two basic types of computer memory are primary and secondary.

Optical Disk

• A CD is a non-erasable disk that stores digitized audio information.

Outputting Data

• Outputting data is the process of producing useful information for the user.

Output Unit's Function

• The output unit's function is to convert data entered by the user into a computer-understandable form.
• It converts data received from the computer into a format that the user can understand.

Smallest Unit of Data

• The smallest unit of data in a computer is a bit.

Input Unit Functions

• The input unit reads instructions and data from the outside world.

Data and Program

• Input is the raw material of a computer system.
• Processed data from a computer is the output.

Computer Characteristics

• Computers are characterized by speed, accuracy, and capacity.
• IQ is not a characteristic of a computer.

Memory for Data Storage

• A computer memory is an electronic component where data can be stored and retrieved later as needed.

Memory Capacity

• Memory capacity is commonly measured in megabytes.

Levels of Cache

• L1 cache is a level of cache that is built into a CPU.

Processor Speed Measurement

• The speed of a computer processor is measured in megahertz (MHz.)

Screen Pixel Distance

• The distance between pixels on a computer screen is called dot pitch.

Screen Symbols

• A pictorial symbol representing computer activity is called an icon.

Image Copy Types

• A soft copy of an image shows the image on a computer screen.

OCR Device

• A wand reader is a device used for optical character recognition (OCR).

Mark Sensing

• "Mark Sensing" is another term for OMR (Optical Mark Recognition).

Screen Refresh Rate

• The screen's refresh rate determines how often the image on the screen is updated.

Other Computer-Related Information

• Memory Management: The process of allocating memory to programs and keeping them separate.

Test your knowledge on computer peripheral devices, including their functions, types of memory, and data transfer mechanisms. This quiz covers essential concepts such as ROM, device drivers, and outputting data. Perfect for computer science students looking to reinforce their understanding.