Compute the value of x in the following expressions
(i) 24.3510 = X_{2} (3mks)
(ii) 6ABH = X_{10} (2mks)
Using twos complements compute the following using 8 bits binary (4mks)
25_{10} – 20_{10}
c) Subtract the following binary numbers using the One’s Compliment method. (3mks)
(11101)_{2} – (1010)_{2}
d)Convert 6057_{8} to Hexadecimal. (3mks)
0 Comments
(a) List and describe four strategies for converting from an old system to a new system. (4mks)
(b) (i) Distinguish between private data and confidential data (2mks)
(ii) What can be done to stop illegal access to a computer laboratory by unauthorized people (3mks)
(c) (i) List four areas that would be considered in the requirement specification. (4mks)
(ii) Name any two areas covered in feasibility report during system analysis and design. (2mks)
The information below is maintained by the sales lady at the school canteen. Study it and answer the questions that follow.(a) Describe the basic data types used in this spreadsheet (4mks)
(b) Provide a single formula that would be used to

Categories
All
Archives
December 2024
