(a) Explain two differences between an Algorithm and a Flowchart.
(b) List three examples of utility programs.
(c) Draw a flowchart of the stops to be used in updating a customer’s balance.
(a) Supply the names of the inventors of the following devices:
|
DEVICE |
NAME OF INVENTOR |
|
Analytical Engine |
|
|
Mechanical Digital Calculator |
|
|
Slide Rule |
|
|
Punched Card |
(b)(i) What are input devices? (ii) List four input devices
(a) Explain home page.
(b)(i) Mention two reasons why computers are connected. (ii) Mention two reasons why computers are not connected.
(c) List four additional items needed to send an email.
(a) (i) What is video conferencing? (ii) Mention four essential items to a video conference.
(III) Give two examples of other hardware components essential to video conference
(b) Give two examples of data cables.
Mention two graphic applications used in editing photographs
(b) List four steps to take to insert the edited photographs into multimedia application
(C) Menton one multimedia element that could be included in presentation other than graphics and texts
(d) List three multimedia hardware for developing and displaying presentation.
In order to avoid damages caused by security breaches, the user must?
- A. configure firewall.
- B. encourage piracy.
- C. install cracked software
- D. promote cyber crime
Viruses, worms and trojan horses are all?
- A. application software
- B. malicious software.
- C. robust software.
- D. system software
Which of the following statements best describes sequential file organization?
- A. Records are arranged in no particular order.
- B. Records are directly addressed to the key value.
- C. Records are sorted according to a key field.
- D. Records are used as index to access the database.
Which of the following options best shows the arrangement of file structure?
I File
ll. Field
III. Character
IV, Record
- A. III, II, I and IV
- B. II, III, I and IV
- C. IlI, II, IV and I
- D. II, III, IV and I
Which of the following is not a criterion files?
- A. Nature of content
- B. Organizational method
- C. Storage medium
- D. Type of data
The EBCDIC coding system was developed on?
- A. IBM mainframe computers.
- B. HP mainframe and minicomputers.
- C. Dell mainframe computer
- D. Apple mainframe computers.
The decimal fraction 0.9375 converts to binary?
- A. 0.0111.
- B. 0.1011.
- C. 0.1111.
- D. O.1001.
A single hexadecimal digit is represented by?
- A. one bit.
- B. two bits.
- C. four bits
- D. eight bits.
Digital signals can be represented by:
I. Binary Codes
Il.0 and 1
III. High and Low Which of the following options is correct?
- A. l and Il only
- B. I and lIl only
- C. II and lIl only
- D. I, Il and III
In a Windows operation involving dragging and dropping an item on the desktop, the item will be?
- A. deleted from the screen.
- B. duplicated.
- C. moved to a new location.
- D. renamed.
A feature on the computer desktop that indicates the current active applications is called?
- A. icon.
- B. menu bar.
- C. ribbon.
- D. task bar.
Removing a program on a computer properly requires?
- A. deleting.
- B. archiving.
- C. disabling.
- D. uninstalling.
In database application, the field length determines the?
- A. maximum number of characters the field can accommodate.
- B. maximum number of operations that can be performed on the field.
- C. level of security of the database.
- D. maximum number of datatype the field can contain.
In graphics, a subscript text refers to a text that is positioned?
- A. a little bit above a normal line of text
- B. a little bit below a normal line of text.
- C. at the end of a line of text.
- D. at the front of a line of text
To centre worksheet titles across a range of cells MS Excel, the user must?
- A. widen the rows to centres the titles across the range of cells.
- B. widen the columns to centre the titles across range of cell
- C. select the cells containing the title text and use the fill handle to centre the text across the range of cells.
- D. select any cell containing the title text and use the fill handle to centre the text across a range of cells.
In MS Excel, the average of 10 numbers give B1, B2,…,B10 is?
- A. = B1 + B2 ... B10)/10
- B. @SUM(B1:B10).
- C. #SUM(B1:B10)/10,
- D. = B1 +B2 +... + B10/10.