Lesson 4—How a Computer Processes Data
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The PC system case is the software that runs the computer.
Logical operations involve comparisons.
When electricity is present, it represents a zero within the processor.
The processor is the “brains” of the computer.
After the control unit sends out messages to execute instructions, it changes those instructions into
machine language.
The memory on the motherboard is short term.
RAM is volatile.
ROM is volatile.
A machine cycle cannot contain more than one execution cycle.
A motherboard can contain more than one controller.
Expansion boards are also known as adapter cards.
The point at which a system unit attaches to a peripheral device is called a hub.
IrDA uses radio waves to transfer data between devices.
Bluetooth uses infrared technology to transfer data between devices.
A megabyte represents approximately 1 million bytes.
MULTIPLE CHOICE
1. Which is not a part of IPOS?
a. information
c. output
b. storage
d. input
2. The ____ is central to the computer system.
a. circuit board
c. component case
b. motherboard
d. system case
3. In the IPOS procedure, the P represents which of the following?
a. port
c. peripheral
b. pocket
d. processing
4. A(n) ____ is a thin plate that contains electronic components.
a. printer
c. circuit board
b. expansion slot
d. mouse
5. ____ are special instructions that control the activities of a computer.
a. CPUs
c. Programs
b. Chips
d. ALUs
6. Binary is also known as ____.
a. machine language
c. numbers 1-10
b. the decimal system
d. the control unit
7. When a switch turns off electricity, it represents a ____.
a. 3
c. 1
b. 0
d. 2
8. ROM is ____ memory.
a. volatile
c. temporary
b. nonvolatile
d. none of the above
9. Short-term memory is also known as ____.
a. FRM
c. RAM
b. CPU
d. DRAM
10. The ____ cycle refers to the amount of time it takes a CPU to execute an instruction and store the results.
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a. machine
c. system
b. instruction
d. execution
The more ____ that your computer has, the faster it processes data.
a. RAM
c. PICO
b. CPU
d. NANOS
The computer manufacturer uses ____ to store specific instructions that are needed for computer
operations.
a. RAM
c. CPU
b. ROM
d. SYS
A ____ is a device that allows one computer to talk to another.
a. data enabler
c. CPU
b. DRAM
d. modem
What is the most popular standardized coding system?
a. binary
c. TCP/IP
b. ASCII
d. EBCDIC
____ bits are required to make a byte.
a. Two
c. Six
b. Four
d. Eight
COMPLETION
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The general operations of a computer are input, processing, output, and ____________________.
The motherboard is a(n) ____________________ board.
The CPU has two primary sections: the control unit and the ____________________/logic unit.
The ____________________ unit coordinates all activities from the CPU.
An instruction ____________________ is the amount of time it takes to retrieve an instruction and
complete the respective command.
The faster the ____________________ cycle, the faster your computer processes data.
The computer uses instructions stored on the ____________________ to boot or start the computer.
A(n) ____________________controls the transfer of data to and from a peripheral device.
Parallel ports transfer eight ____________________ at a time.
Expansion boards are also called ____________________.
A byte comprises ____________________ bits.
A(n) USB ____________________ plugs into a USB port and contains multiple USB ports.
The ____________________ standard supports data transfer rates of up to 480 million bits per second.
A(n) ____________________ device transmits data one bit at a time.
___________________ refers to the computer’s ability to configure boards and devices automatically.
____________________ is the ability to add and remove devices from the computer while the computer
is turned on and have the operating system recognize the device.
The ____________________ bus can connect up to 63 external devices to a computer.
____________________ uses radio waves to provide short-range wireless communications.
A(n) ____________________ is approximately one trillon bytes.
On your computer, you can view system information by displaying the ____________________ dialog
box.