What is the system unit? ________________________________________________________
What are the four basic types of microcomputer system units?
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____________________________________________________________
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____________________________________________________________
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____________________________________________________________
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____________________________________________________________
What are the two most widely used handheld computers? ______________________________ and
_________________________________________.
Our voices create _______________________signals while a computer can only recognize
_____________________ signals. Therefore, in order to process any information, the system unit has to: __________________________________________________________________________________
Electricity can be either ______________ or _____________________. This is called a
_________________________ or a _________________________ and is used to represent data and instructions.
Match the correct number system on the left to the digits it includes on the right:
Binary system 0 1 2 3 4 5 6 7 8 9
Decimal system 0 1
Each 0 or 1 in the binary system represents a ___________________. Eight bits combined are called a
____________________.
Now, go to www.computing2010.com, enter the word binary and read the multiple page article about binary code.
From the article you just read, fill out the chart below using either a whole number or an exponent.
Name
Kilo
Mega
Giga
Tera
Peta
Exa
Zetta
Yotta
Abbr.
K
P
E
Z
Y
M
G
T
Size

What are binary coding schemes?
_____________________________________________________________________________________
_____________________________________________________________________________________
Name 3 binary coding schemes and tell what each are used for:
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______________________________________________________________________________
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______________________________________________________________________________
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______________________________________________________________________________
What is the ASCII code for the number 3?
______________________________________
Write K201 is ASCII code:
______________________________________________
______________________________________________
______________________________________________
The motherboard, also called a system board, does what:
__________________________
____________________________________________________________________________________.
Name the parts of the system board:
What do each of these parts on the system board do?
Sockets: _________________________________________________________________________
Slots: ____________________________________________________________________________
Bus lines: _________________________________________________________________________

The microprocessor is considered the _____________________ of the computer and has 2 basic components. Name each component and tell what each does:
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______________________________________________________________________________
______________________________________________________________________________
What is a word? ___________________________________________________________________
How does it work out (mathematically) that a 32-bit-word computer can access 4 bytes at a time while a
64-bit-word computer can access 8 bytes at a time? __________________________________________
____________________________________________________________________________________
What does the clock speed measure? ______________________________________________________
What is a multi-core chip?
_____________________________________________________________________________________
_____________________________________________________________________________________
Fill in the chart below:
Name 3 specialty processors and tell what they do:
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______________________________________________________________________________
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______________________________________________________________________________
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______________________________________________________________________________
Fill out the following table about memory:
Type of memory
Volatile or nonvolatile Different types? What is it used for?

What is an expansion slot? ___________________________________________________________
Name some of the most commonly used expansion cards and what they are for:

_______________________________________________
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_______________________________________________
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_______________________________________________
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_______________________________________________
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_______________________________________________
What is a bus line (and don’t say Greyhound!)____________________________________________
_____________________________________________________________________________________
Name the different types of expansion buses and what they are used for:
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_________________________________________________
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_________________________________________________
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_________________________________________________
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_________________________________________________
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_________________________________________________
What is a port? _____________________________________________________________________
Name 5 different ports and what they are used for:
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_______________________________________________________
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_______________________________________________________
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_______________________________________________________
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_______________________________________________________
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_______________________________________________________
Name 4 different specialized ports and what they are used for:
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_________________________________________________________
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_________________________________________________________
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_________________________________________________________
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_________________________________________________________

The two most common types of input devices include: ________________________ and
____________________.
How is a QWERTY keyboard arranged and how did they come up with it?
_____________________________________________________________________________________
_____________________________________________________________________________________
What are the 5 different kinds of keyboards?
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______________________________________________________
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______________________________________________________
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______________________________________________________
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______________________________________________________
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______________________________________________________
What does a toggle key on the keyboard do? What is an example?
_____________________________________________________________________________________
Name 3 different kinds of mice and how they work:
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_______________________________________________________________________
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_______________________________________________________________________
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_______________________________________________________________________
What are some other types of pointing devices?
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_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
How does an optical scanner work? ______________________________________________________
Name two types of optical scanners and what they are used for:
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_____________________________________________________________________________
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_____________________________________________________________________________
Name two kinds of card readers and what they are used for:
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______________________________________________________________________________
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______________________________________________________________________________
Name 3 kinds of character and mark recognition devices and what they are used for:

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______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________

What are the monitor features that determine the clarity of the picture:
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_________________________________________________________________
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_________________________________________________________________
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_________________________________________________________________
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_________________________________________________________________
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_________________________________________________________________
Does a high resolution or low resolution give you a better picture? _______________________
Name four features of printers that determine its quality:

__________________________________________________________________
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__________________________________________________________________
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__________________________________________________________________
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__________________________________________________________________
What are three basic types of printers and what are they used for?
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______________________________________________________________________
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______________________________________________________________________
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______________________________________________________________________
What are 4 specialty types of printers and what are they used for?

________________________________________________________________________
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________________________________________________________________________
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________________________________________________________________________
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________________________________________________________________________
Name 3 types of combination input and output devices:

________________________________________________________________________
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________________________________________________________________________
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________________________________________________________________________
What is telephony? ___________________________________________________ What are the advantages and disadvantages to using it? _____________________________________________
_____________________________________________________________________________________
_____________________________________________________________________________________
What are three approaches to place a telephone call using telephony:

__________________________________________________________________
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__________________________________________________________________
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___________________________________________________________________