SECTION A
QUESTION ONE (30 Marks)
a. What are the main features of von Neumann architecture?[4 mks]
a) memory;
b) control unit;
c) arithmetic logic unit;
d) input / output interface.
b. What 3 parts make up the
...
SECTION A
QUESTION ONE (30 Marks)
a. What are the main features of von Neumann architecture?[4 mks]
a) memory;
b) control unit;
c) arithmetic logic unit;
d) input / output interface.
b. What 3 parts make up the CPU?[3 mks]
Control Unit this part controls the input and output devices.
Arithmetic Logic Unit this is the part that does all the working out: it does all the maths
and makes the decisions.
Immediate Access Store this is the memory available for programmes and data.
c. What is a software and list Two types of software?[4 mks]
Software is set of Programs or instructions. use to perform some specific task by
computer.
1.System Software
2.Application Software
d. What is representation of data in computer system?[2 mks]
Data representation. A binary digit, or bit, is the smallest unit of data in computing. It
is represented by a 0 or a 1. Binary numbers are made up of binary digits (bits), eg the
binary number 1001.
e. What is a number system in computers and List 2 common types?[3 mks]
Number systems are the technique to represent numbers in the computer system
architecture, every value that you are saving or getting into/from computer memory has a
defined number system.
Computer architecture supports following number systems.
-Binary number system.
-Octal number system.
-Decimal number system.
-HexaDecimal number system
f. Work out 2's complements of binary number 010111.1100 is [2 mks]
101000.0100
g. List and Explain THREE functions of Operating Systems[4 mks]
Essential functions − Ensures optimum and ef
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