Computer Hardware: Input and Output Devices Quiz

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Questions and Answers

Which type of mouse has no moving parts and can be used on any surface?

Touch pads

Optical mouse (correct)

Wireless mouse

Gaming mice

What type of readers are heavily used in grocery stores for automated checkout and inventory control?

Bar Code Readers (correct)

RFID Readers

Character and Mark Recognition Readers

Card Readers

What is the main function of Radio-frequency identification (RFID) Readers?

Recognizing special characters and marks

Reading preprinted characters

Tracking pets (correct)

Scanning bar codes

Which type of scanning device is commonly used to read encoded characters on checks in banks?

Character and Mark Recognition Readers Signup and view all the answers

What type of image capturing device captures images digitally and stores them in memory?

Digital Camera Signup and view all the answers

What marked the beginning of widespread commercial use of mainframe computers?

Introduction of the IBM 1401 and 7090 transistorized machines Signup and view all the answers

During which era did mainframe computers become powerful enough to support thousands of online remote terminals?

General-purpose mainframe and minicomputer era Signup and view all the answers

What did the proliferation of PCs in the 1980s and early 1990s launch?

Spate of personal desktop productivity software tools Signup and view all the answers

Which stage marked the introduction of the IBM 360 series?

General-purpose mainframe and minicomputer era Signup and view all the answers

During which era did mainframe computers come into widespread commercial use?

Transistorized machines era Signup and view all the answers

What type of storage is volatile and temporary?

RAM Signup and view all the answers

Which technology saves files by altering the magnetic charges of the disk's surface to represent 1s and 0s?

Hard disks Signup and view all the answers

What type of printers use a laser light beam to produce images?

Laser printers Signup and view all the answers

What is the primary characteristic used to describe the amount of time required to retrieve data from storage?

Access speed Signup and view all the answers

What characteristic defines the how much the media can hold in terms of data and programs?

Capacity Signup and view all the answers

Which component is responsible for controlling communication for the entire computer system?

System board Signup and view all the answers

What is the function of the Control Unit in a CPU?

Tells the computer system how to carry out a program’s instruction Signup and view all the answers

What is the purpose of Flash Memory in a computer system?

To combine the features of RAM and ROM Signup and view all the answers

What is the function of a TV Tuner when installed in a computer?

To use Windows Media Center as a DVR Signup and view all the answers

What is the purpose of a power supply unit in a desktop computer system?

To convert alternating current (AC) from wall outlets or batteries into direct current (DC) Signup and view all the answers

What is the main characteristic of the client/server computing architecture?

The server provides client computers with a variety of services and capabilities. Signup and view all the answers

In the early 1990s, what did firms turn to for networking standards and software tools?

Integration of disparate networks and applications Signup and view all the answers

What does cloud computing refer to?

A model of computing that provides access to a shared pool of computing resources over a network Signup and view all the answers

What factor determines the power of personal computers?

The type of microprocessor used Signup and view all the answers

What is the main characteristic of laptops compared to desktops?

Laptops are portable and much smaller Signup and view all the answers

Which of the following is NOT a characteristic of solid-state drives (SSDs)?

Contain moving parts Signup and view all the answers

What is the capacity range of USB Drives (or Flash Drives)?

1 GB to 256 GB Signup and view all the answers

What do lands represent on portable optical discs?

1s and 0s Signup and view all the answers

What type of data storage cannot be written to or erased?

Compact disc - read only mode Signup and view all the answers

What technology will potentially extend Moore’s Law into the next decade according to the text?

Quantum Computing Signup and view all the answers

Study Notes

Input Devices

Optical mice have no moving parts and can be used on any surface.
Barcode readers are heavily used in grocery stores for automated checkout and inventory control.

Scanning Devices

Magnetic Ink Character Recognition (MICR) is commonly used to read encoded characters on checks in banks.
Radio-frequency identification (RFID) Readers are used to track and identify objects.

Image Capturing Devices

Digital cameras capture images digitally and store them in memory.

Mainframe Computers

The IBM System/360, introduced in 1964, marked the beginning of widespread commercial use of mainframe computers.
Mainframe computers became powerful enough to support thousands of online remote terminals during the 1970s and 1980s.

Personal Computers

The proliferation of PCs in the 1980s and early 1990s launched the client-server architecture.
The System/360 series was introduced in the 1965 era.

Storage

RAM (Random Access Memory) is volatile and temporary storage.
Hard disk drives use magnetic charges to represent 1s and 0s.
Laser printers use a laser light beam to produce images.

Performance Characteristics

Access time is the primary characteristic used to describe the amount of time required to retrieve data from storage.
Capacity defines how much the media can hold in terms of data and programs.

CPU and Control Unit

The Control Unit is responsible for controlling communication for the entire computer system.
The function of the Control Unit in a CPU is to retrieve and execute instructions.

Memory and Storage

Flash Memory is used to store data in a computer system.
TV Tuners, when installed in a computer, allow for TV signal reception.

Power Supply

The power supply unit in a desktop computer system provides power to all components.

Networking and Cloud Computing

Client-server computing architecture is defined by multiple clients connected to a central server.
In the early 1990s, firms turned to TCP/IP for networking standards and software tools.
Cloud computing refers to on-demand access to a shared pool of computing resources.
The processing power of personal computers determines their capability.

Laptops and Desktops

Laptops are characterized by their portability compared to desktops.

Storage Devices

Solid-state drives (SSDs) are characterized by their high speed and low power consumption.
USB Drives (or Flash Drives) have a capacity range from 1GB to 1TB.
Lands on portable optical discs represent the reflective material.

Data Storage

Read-Only Memory (ROM) is a type of data storage that cannot be written to or erased.

Emerging Technology

Nanotechnology will potentially extend Moore’s Law into the next decade.

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Description

Test your knowledge of input and output devices with this quiz. Learn about keyboards, pointing devices, game controllers, styluses, scanning devices, and more.