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OtisamLMS
Computing

Computing · Quick practice · answer shown after each question

Binary arithmetic and signed numbers

Question 1 of 10

Question 1 of 10

In 8-bit two's complement the most negative value is −128.

Question 2 of 10

Question 2 of 10

An advantage of two's complement over sign-and-magnitude is that

Question 3 of 10

Question 3 of 10

Explain how logical shifts are used for multiplication and division, with examples.

Question 4 of 10

Question 4 of 10

In floating-point representation, a number is stored as

Question 5 of 10

Question 5 of 10

In sign-and-magnitude representation, the left-most bit shows

Question 6 of 10

Question 6 of 10

In two's complement there is only one representation of zero.

Question 7 of 10

Question 7 of 10

Shifting a binary number left by one place multiplies it by ___.

Question 8 of 10

Question 8 of 10

Which unsigned 4-bit operation causes overflow?

Question 9 of 10

Question 9 of 10

When a result is too big for the bits available, an ___ error occurs.

Question 10 of 10

Question 10 of 10

In binary addition, 1 + 1 + 1 equals

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.