Solved

how many different numbers can six bits represent?

Posted on 2006-07-20
10
397 Views
Last Modified: 2012-06-21
Does any body know how many different numbers can six bits represent?
0
Comment
Question by:amoe
10 Comments
 
LVL 35

Assisted Solution

by:Raynard7
Raynard7 earned 50 total points
ID: 17151116
64 (including 0)

2^6
0
 

Author Comment

by:amoe
ID: 17151402
how do i convert 7Bh to decimal?
0
 
LVL 5

Expert Comment

by:Davidshc76
ID: 17151416
0
 
LVL 14

Expert Comment

by:CyrexCore2k
ID: 17151488
Programatically?

Function HexToInt(sStr)
Dim iInt, temp, x
iInt = 0
For x = 1 To Len(sStr)
    temp = Val(Mid(sStr, x, 1))
    If temp = 0 And Mid(sStr, x, 1) <> "0" Then
        If UCase(Mid(sStr, x, 1)) = "A" Then
            temp = 10
        ElseIf UCase(Mid(sStr, x, 1)) = "B" Then
            temp = 11
        ElseIf UCase(Mid(sStr, x, 1)) = "C" Then
            temp = 12
        ElseIf UCase(Mid(sStr, x, 1)) = "D" Then
            temp = 13
        ElseIf UCase(Mid(sStr, x, 1)) = "E" Then
            temp = 14
        ElseIf UCase(Mid(sStr, x, 1)) = "F" Then
            temp = 15
        End If
    End If
    temp = temp * (16 ^ (Len(sStr) - x))
    iInt = iInt + temp
Next
HexToInt = iInt
End Function
0
 
LVL 4

Accepted Solution

by:
v_karthik earned 50 total points
ID: 17151490
>>how do i convert 7Bh to decimal?

you mean manually? Just write down the bits representing 7 and B side by side like this

0111 1011

(note: 7 is 0111, B is 1011 or 11 in decimal)

Now read the binary in decimal (hope u know that), it becomes 123.
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 15

Expert Comment

by:Ryan_R
ID: 17151542
1 bit (as a 1 or a 0)
8 bits (1 byte) = 1 character
therefore 6 bits isn't enough to represnt any characters - you need multiples of 8
0
 
LVL 25

Expert Comment

by:InteractiveMind
ID: 17153097
> therefore 6 bits isn't enough to represnt any characters

For standard character encodings, you are correct.
But if he's implementing his own format, then there's no problem (so long as he can represent those 6 bits).
0
 
LVL 15

Expert Comment

by:Ryan_R
ID: 17153407
fair enough, is there any really good reason why this is needed (whats wrong with standard chars?)
0
 
LVL 25

Expert Comment

by:InteractiveMind
ID: 17153744
Well, if there's only a limited number of characters that need representing, then by using 6 bits instead of 8, you will be of course saving 2 bits per character.

When memory is a *major* issue, and you need to represent a very large number of characters, then this small sacrifice is somewhat significant.

But it's unlikely that you will ever be in that situation nowadays; so really, no.. I personally cannot think of any good reason why you wouldn't just stick with the standard character encodings (or at least use an 8-bit byte, which the low-level architecture directly supports; rather than trying to implement your own format).
0
 
LVL 15

Expert Comment

by:Ryan_R
ID: 17162225
thanks - i was thinking on similar lines as you
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
bigHeights  challenge 13 59
count7 challenge 12 100
what is the main difference between git clone and fetch ann pull and push commands 2 67
Path to Python 9 103
A short article about a problem I had getting the GPS LocationListener working.
Whether you’re a college noob or a soon-to-be pro, these tips are sure to help you in your journey to becoming a programming ninja and stand out from the crowd.
An introduction to basic programming syntax in Java by creating a simple program. Viewers can follow the tutorial as they create their first class in Java. Definitions and explanations about each element are given to help prepare viewers for future …
In this seventh video of the Xpdf series, we discuss and demonstrate the PDFfonts utility, which lists all the fonts used in a PDF file. It does this via a command line interface, making it suitable for use in programs, scripts, batch files — any pl…

939 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now