Page 40 - DCAP101_BASIC_COMPUTER_SKILLS

Unit 2: Introduction to Data Representations

Memory dump: A commonly used way of doing this is to print memory contents on a Notes
printer. This printout is called a memory dump.

1. Explain one number system to another Conversion.

2.5 Self-Assessment Questions

1. The value range of one digit of octal duplicates the value range of three digits of
binary.
(a) True (b) False
9
2. A powerful computer is capable of performing several billion (10 ) arithmetic operation
per second.
(a) True (b) False
3. 3-digits bit number, i.e. 101 has …………decimal equivalent.
(a) 6 (b) 8
(c) 2 (d) 5
4. Memory dump is a printout of memory contents on a paper.
(a) True (b) False

2.6 Review Questions

1. Find decimal equivalent of following binary numbers:
(a) 1101011

(b) 1000
(c) 10110011
(d) 11011101
(e) 1110101
(f) 1000
(g) 10110001100
(h) 110001
(i) 1010101100
(j) 111
2. Find octal equivalent of the binary numbers of Question 22.
3. Find hexadecimal equivalent of the binary numbers of Question 22.
4. Convert the following numbers to decimal numbers:
(a) 110110 (b) 2573
2 6
(c) 2A3B (d) 1234
16 9
5. Carry out the following conversions:
(a) 125 =? (b) 24 = ?
6 4 9 3
(c) ABC =?
16 8

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