Computer science exam 1

Understanding the Computer System Unit

Schedule:Available now.Due 03/30/2018 11:59 PM EDTStarted:03/30/2018 5:10 PM EDTSubmitted:03/30/2018 5:30 PM EDTScore:100%Points:200 out of 200

Question 1

Points: 10 out of 10What type of computer would integrate the system unit (chassis and computer) with the display and keyboard?

A desktop computer

An all-in-one desktop computer

A mobile computer

A tower computer

Question 2

Points: 10 out of 10Which of the following type of system unit is not considered to belong to the family of PCs?

Workstation

Smart phone

Notebook

Desktop

Question 3

Points: 10 out of 10When purchasing a PC, you should upgrade --busesRAMROMinternal bays and slots to the largest amount or number your budget will afford.

Question 4

Points: 10 out of 10What is an expansion slot?

A device that joins a cable to a peripheral

A device that connects memory to the CPU

A port used for special equipment

A socket on the motherboard that can hold an adapter card

Question 5

Points: 10 out of 10What is the purpose of a heat sink?

To keep the keyboard from overheating

To absorb heat generated by the memory modules

To absorb heat generated by the processor chip

To keep the hard drive from overheating

Question 6

Points: 10 out of 10What is the purpose of the processor, which is also called the central processing unit (CPU)?

This electronic component interprets and carries out the basic instructions that operate the computer.

This hardware component communicates with the keyboard and monitor.

This electronic component stores instructions waiting to be executed and data needed by those instructions.

This component is software that communicates with the keyboard and monitor.

Question 7

Points: 10 out of 10How would a port most likely be used?

To connect additional input, output, storage, and communication devices to a PC

To provide a place for plugging in expansion cards

To provide a place to insert a DVD drive via an opening in the system case

To connect the battery to the computer’s internal circuitry

Question 8

Points: 10 out of 10Which of the following would be an example of a docking station?

A peripheral component that can be used to link a desktop-sized monitor with a tablet PC

An internal bay that can be used for inserting additional components such as a hard drive

A USB port on a laptop or PC

A slot on the motherboard that holds memory modules

Question 9

Points: 10 out of 10If mobility is the primary criteria for a buyer of a new PC, which of the following would be the most important criteria to consider?

The size of the internal hard drive

The number of USB ports for connecting peripherals

The weight and size of the unit

The type of software applications to be used—gaming, for instance, requires sophisticated graphics and sound adapter cards

Question 10

Points: 10 out of 10Marissa is a student taking classes in a face-to-face setting, a physical classroom. She needs to be able to take her computer to class to give presentations. Which of the following might you suggest?

A laptop system with a 2.13 GHz processor, 4 gigabytes of RAM, and a 17" monitor

A workstation with a 1.6 GHz quad-core processor, 8 gigabytes of RAM, and a 20" monitor

A desktop system with a 2.33 GHz processor, 1 gigabyte of RAM and a 23" monitor

A handheld PC

Question 11

Points: 10 out of 10You have been diagnosed with carpal tunnel syndrome in your wrists (related to extensive computer usage). What might be a solution for reducing stress on your wrists?

Use a keyboard with internal lighting to support work in low-light conditions.

Use a flat waterproof keyboard.

Use a keypad that is projected on an external flat surface.

Use a split-style keyboard that separates and angles groups of keys into right- and left-hand portions.

Question 12

Points: 10 out of 10

Monitors with --LCDLED technology are considered to have better picture sharpness and brightness, are sleeker and lighter, consume less power, but are more expensive.

Question 13

Points: 10 out of 10Which of the following is not an input device?

Mouse

Printer

Trackball

Keyboard

Question 14

Points: 10 out of 10What is input?

All processed data

Data or instructions that have been processed into a useful form

Any data or instructions entered into the memory of a computer

Any data or information that is processed and presented to the user

Question 15

Points: 10 out of 10

Printers, monitors, and speakers are the three most commonly used--outputinputcommunicationsprocessing devices.

Question 16

Points: 10 out of 10Which of the following is not a capability of a multifunction printer?

Printing

Video

Scanning

Faxing

Question 17

Points: 10 out of 10A cable --modemrouterEthernet cardnetwork card is a digital device that sends and receives digital data over the cable television network.

Question 18

Points: 10 out of 10What communications device connects multiple computers together and transmits data to its correct destination on a network?

A router

An Ethernet card

A modem

A network card

Question 19

Points: 10 out of 10

The following diagram is an example of what type of home network?

Completely wired

Combination of wired and wireless

Completely wireless

Question 20

Points: 10 out of 10To protect the information and data you send or receive over the network, what other component is critical to install in your home network?

Wire, cable, or fiber optic connection between computers

A hardware or software firewall

Parental controls

An uninterruptible power source

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