-
The picture below shows an external part of a magnetic storage device.
i. What is the name of the device?
ii. Identify the parts labeled A, B and C respectively.
iii. Other than this (i), name other four magnetic storage media that you know.
Date posted:
July 23, 2021
-
Identify the devices labeled A and B.
Date posted:
July 23, 2021
-
The diagram below shows coded data that could be input into a computer.
(i) Name the device that can be used to input the above data.
(ii) Where would the above method of input be applied?
(iii) For the application you have given above (b)(ii), state TWO kinds of information that this type of input may contain.
Date posted:
July 23, 2021
-
What is the name given to the device used to capture data directly from the source document such as a printout.
Date posted:
July 23, 2021
-
Name the keyboard keys represented by the symbols below.
Date posted:
July 23, 2021
-
Joan wanted to transfer some data from a friend’s computer to VCD. How many VCD’s will she require to transfer 4,294,967,296 bytes if a single VCD can hold up to 700MB of data?
Date posted:
July 23, 2021
-
What substance or material normally cause clogging on the keyboard and therefore should not be carried to the lab?
Date posted:
July 23, 2021
-
What was the major improvement in the fourth generation computers.
Date posted:
July 23, 2021
-
List and explain processes state
Date posted:
March 30, 2020
-
Convert the following binary number 1101.012 to decimal.
Date posted:
November 18, 2019
-
Convert the following hexadecimal number to its decimal equivalence 11116
Date posted:
November 18, 2019
-
List the advantages of using an electronic database system for storage of data over the file approach.
Date posted:
November 18, 2019
-
List three types of data integrity constraints that should be observed in a database
Date posted:
November 18, 2019
-
The diagram below shows a layout of computers networked to access the internet. Use the diagram to answer the questions that follow.
i. Name and describe the purpose of the devices labeled A
ii. State two functions of the device labeled server
iii. Name any three transmission medias that can be used to transmit internet to the server .
iv. Explain any two challenges that can be faced by interior network user.
v. Name the network topology used above
Date posted:
November 14, 2019
-
List two programs that can be used by Web Developers.
Date posted:
November 14, 2019
-
Differentiate between peer to peer and server based network.
Date posted:
November 14, 2019
-
Explain the following terms as used in desktop publishing.
a. Embedded object.
b. Autoflow.
Date posted:
November 14, 2019
-
The formula =$M30+Q$20 was typed in cell R15 and then copied to cell M24 of a spreadsheet. Write the formula as it appears in cell M24.
Date posted:
November 14, 2019
-
Give any two characteristics of master file.
Date posted:
November 8, 2019
-
List three paragraph formatting features of word processors.
Date posted:
November 8, 2019
-
Briefly explain the following terms as used in spreadsheet.
(i) Cell
(ii) Range
(iii) Value
(iv) Function
Date posted:
November 8, 2019
-
Study the following pseudocode and answer the questions that follow.
i. Determine the value of N and X.
ii. Draw a flowchart of the above pseudocode.
Date posted:
November 8, 2019
-
Explain any two ways in which computers have been made user-friendly for persons that are physically challenged.
Date posted:
November 8, 2019
-
Work out 3210-1910 in 8-bit binary notation;
(i) As a signed magnitude representation using ones complements.
(ii) Using two’s complement
Date posted:
November 7, 2019
-
The information in figure 3 below is maintained by the patron of wildlife club in a school. Study it and answer the questions that follow.
(a) Describe the field values, records and file.
(b) State the most appropriate primary key for the list.
(c)State the most appropriate data types for the fields:
(i) Admission number
(ii) Membership number.
(d) If a database was to be created for the list; forms, tables, queries and reports are likely to be used.
(i) State the purpose of each of these objects.
(ii) Which objects cannot be used to store the data in the list?
(e) (i) How many field values are in the list?
(ii) How many records are in the list?
Date posted:
November 7, 2019
-
An airline uses an information system whereby if a passenger at station A books a plane seat, this transaction is immediately shown at stations A and B such that no other passenger can book the same seat.
(I) Name this data processing mode.
(II) State two advantages of this data processing mode.
Date posted:
November 7, 2019
-
List two factors that dictate the cost of a computer system.
Date posted:
November 7, 2019
-
Give three hardware considerations that should be made before installing an operating system.
Date posted:
November 7, 2019
-
Differentiate between a word and a word length as used in data representation.
Date posted:
November 6, 2019
-
Using two's complement, show how the arithmetic below would be carried out on a 8 – bit computer system. (+54) – (+29).
Date posted:
November 6, 2019