ITEC Chapter 6
Which 2 of the following are examples of output?
- A YouTube video displayed on a screen. - An anti-lock brake system applying brakes.
Which two of the following would be used to store a single bit of data?
- A hole in a punchcard - A transistor
Which three of the following statements are true regarding a screen's resolution?
- A measure of image quality - Shown as width x height in pixels - Equals the number of pixels in a display
Which two of the following items are commonly included when you purchase a Windows PC laptop computer with a solid-state hard drive?
- A universal serial bus (USB) port - An operating system
Which three of the following colors are used to create pixels in most output devices?
- Blue - Green - Red
Which two of the following statements are correct regarding a byte?
- Each number, special character, and letter of the alphabet is represented as a byte - Equal to 8 bits
Which three of the following are commonly associated with laptop computers?
- Full operating system - Mobile - Integrated keyboard, monitor, and touchpad
Which two of the following are computers?
- Gaming console - Smartphone
Which three of the following are correct statements regarding clock speed?
- Increasing the clock speed of a processor is called overclocking. - The clock speed is the base speed at which the processor performs the machine cycle each second. - Clock speed is sometimes called clock rate.
Which two of the following acronyms describe a type of computer monitor?
- LED - LCD
Not a feature of a tablet computer
- Most allow you to upgrade RAM - Include a terabyte (TB) or more of storage.
Which three of the following are common types of servers?
- Network Server - File Server - Web Server
Select two characteristics of a solid-state drive (SSD).
- No moving parts - Extremely fast
Which two of the following responses best define the term "resolution" in output devices?
- Quality of the image - Number of pixels in a display
Select the items that are commonly found in a traditional hard drive.
- Stores data magnetically - Platter - Read/write head
Tablet Computer
- Tablet computers are highly portable - Smaller OS (usually) - Touchscreen is a primary input
Which two of the following are used for measuring typical hard drive capacities for personal computers?
- Terabytes - Gigabytes
Which three of the following are external storage devices?
- Universal serial bus (USB) drive - Optical (DVD) drive - External hard drive
For which of the following two reasons, you might purchase a tablet computer rather than a laptop?
- You need a computer that you can use while walking - You need a highly mobile computer that works well for reading e-books or Netflix
The three factors that impact a processor's speed
- clock speed - word size - bus width
The four basic functions of a computer are to:
1 - accept data input 2 - process data into information 3 - present output 4 - provide storage of data
Gigabyte (GB)
1 billion bytes
Megabyte (MB)
1 million bytes
Terabyte (TB)
1 trillion bytes
Petabyte (PB)
1,000 terabytes of data
Personal computer CPU clock speeds range between ____.
1-4 gigahertz
Steps in the boot process
1. Activating BIOS, stored permanently on ROM 2. Perform a Power-on self test (POST) 3. Load OS to RAM 4. Configuration and customization checking
Kilobyte (KB)
1000 bytes
Which two of the following are typical aspect ratios for monitors?
16:9 and 4:3
Processors typically have a word size of either_____
32 or 64 bits
Server
A computer system in a network that is shared by multiple users
Embedded
A computer that is integrated (is a part of) with a larger device, such as a programmable thermostat
port
A hole or slot in a computer, designed to accept a specific connector
hyperthreading
A multicore processor has the ability to execute two or more sets of instructions at the same time.
single-core processor
A processor with one control unit and one arithmetic logic unit (ALU)
Universal Serial Bus (USB)
A type of interface that enables the communication between digital devices, allows data transfer, and for devices to be electrically charged
If you want a non-mobile computer without the relatively large footprint of a desktop, consider purchasing a(n) ___
All in one computer
Decode
An instruction is obtained from memory
mainframe computer
An organization that needs to process thousands of simultaneous transactions
CPU (Central Processing Unit)
Another name for a computer's processor
Which of the following is not part of the boot process?
Any installed anti-virus software checks the system for errors
Smartphone
Behind the touchscreen
Laptop
Beneath the keyboard.
A short-distance wireless communications technology,____, uses relatively short-wavelength radio waves to transfer data between devices like phones, speakers, and headphones.
Bluetooth
output
Data that has been processed into a useful format.
Storage
Devices allowing the retention of data, when your computer has been shut down, for future use
The amount of space a device takes up on a desk or table is referred to as its _____.
Footprint
Which of the following terms refers to the physical parts of a computer system?
Hardware
What is equal to one cycle per second?
Hertz
Desktop
In tower or chassis
Overclocking
It can damage a processor if not properly executed. It will also void your warranty.
Which acronym refers to a type of computer monitor?
LCD
The correct abbreviation for megahertz is:
MHz
The interface and connectivity of digital musical devices to computers is accomplished by using _____.
MIDI (Musical Instrument Digital Interface)
The system unit of a computer houses the computer's main circuit board. This circuit board, which holds the CPU, is called the____
Mother Board
When you hear music, read a printout, or view a video, you are using a computer's____.
Output
Overclocking
Running the processor faster than recommended by the manufacturer
Ethernet Cable
Sold in categories such as CAT5e (enhanced) or CAT6, or CAT7 cable is commonly used for connecting devices in a network.
2 in 1
Sometimes called a convertible laptop, a type of laptop that has a removable, or concealed keyboard as well as a touchscreen so that it can be used as a tablet
Lightning connectors
The connector and port developed for Apple devices such as iPhones and iPads
screen size
The diagonal measure of the visible display
Boot Process
The loading of an operating system into the main memory of a device.
super computers
The most powerful computers that can evaluate complex data very quickly.
the display's resolution
The number of pixels in a display
Graphics
The output of visual images created by a computer
Execute
The processor completes the instruction
Store
The results are placed in memory before the next instruction is executed
Pixel
The smallest element of an electronic image
Monitor
The video screen that comes with a computer
aspect ratio
The width of a screen compared to the height of a screen
Desktop
This personal computer is a good choice for gamers who want to be able to expand its capabilities and for families with children who might drop a laptop.
multicore-core processor
Two or more complete processors residing on the same chip and can execute two or more sets of instructions at a time
optical media storage
Using reflective material to store data that can be read using a laser
The graphics adapter inside a digital device is also called the
Video card
GPU (graphics processing unit)
a computer within your computer that creates images.
High-Definition Multimedia Interface (HDMI)
a standard interface for audio-video connectivity which allows for the transmission of high-definition audio and video signals.
Solid State Drives (SSD)
all-electronic storage devices that are used in a variety of products including smartphones, cameras, and tablet computers.
Smartphones owe much of their popularity and computing flexibility to ___ .
applications
A hole in a punchcard, a transistor on a circuit board, or the reflective element on a digital versatile disc (DVD) each represents the smallest unit of data storage called a ___.
bit
Eight bits are considered to make one ____of information. In American Standard Code for Information Interchange (ASCII), it is the data required to store one character, such as a letter or a number.
byte
In addition to the RAM, modern processors temporarily keep frequently accessed data in a _____.
cache
The amount of instructions the CPU can process per second is dictated by the ___
clock
A digital device that accepts input, processes data into information, stores data, and provides output is a
computer
Memory, such as RAM or cache, is __ and has no moving parts.
electronic (solid-state)
Infrared Data Association (IrDA)
establishes the protocols for infrared communication transfer.
The only major difference between MacBooks and the Dell laptops is their prices.
false
The physical parts of a computer such as the system unit (like the tower unit shown) or a monitor are referred to as computer____
hardware
Memory, such as a computer's RAM ___
holds data and programs being used by the processor.
ROM (Read-Only Memory)
is actually storage since it retains data and information when the power has been turned off.
Which of the following are input devices?
keyboard, mouse, microphone, scanner, controller, point-of-sale device
A desktop computer will typically use a ___ for most internal storage.
magnetic hard drive
In an all-in-one computer, such as the one pictured in the image, the motherboard is housed behind the
monitor
Cache contains frequently accessed data and is ___.
much smaller than computer's RAM
When a computer is shut down, the information in the memory (the RAM, the caches, the registers) is ___.
not saved
All computations and activities in a digital device are conducted by the ___
processor
Resolution
refers to the sharpness and clarity of an image.
The location of the computer's ___ unit, which houses a computer's motherboard, depends on the type of computer. For example, in this laptop, it is located under the keyboard.
system
hard drive capacity
the amount of storage you have available to save data and information.
The number of bits that can be processed at one time during one machine cycle is a processor's _____.
word size
