(a) Use the Fig 1 to answer questions (i) to (iv)
(i) What does Fig 1 represent?
(ii) Identify two output components in Fig 1.
(iii) Give the names of the parts labelled III, VI, VII.
(iv) State one precautionary measure that should be taken to protect the setup from power fluctuations while in use
(v) Data entry into system can be achieved through the parts labelled
(vi) Mention one device that can be used to access the part labelled VII.
(b) Figures 2 and 3 represent mass storage media. Use the figures to answer questions (i) to (iv)
(i) Identify the media represented by; Fig 2, Fig 3
(ii) The transaction files of a company are to be recorded and accessed in the order which they arrive. Which of the media is most suitable for the purpose?
(iii) In which media will the stored data be accessed faster?
(iv) State the file access method for each medium
Fig. 2
Fig 3
(c) A CCTV camera system has a 300 MB storage device. Each image size is 300 kB.
(i) How many images can be stored by the CCTV.
(ii) If the storage device is full, mention one one measures that should betaken to ensure that the system continues to capture and store image without loosing already stored images.
(a) A teacher asked a student to capture and print out a one-slide presentation assignment using, MS Word, showing everything on the screen.
(i) What keys or combination of keys can be used to carry out this operation?
(ii) Describe the procedure to be followed by the student in carrying out this assignment using the keyboard.
(b) A system analyst was hired to set up a computer laboratory for Bofe international School; (i) Mention three hardware devices the analyst would need to set up the laboratory.
(ii) List three database application packages likely to recommend by the analyst
(iii) State three Word processing packages likely to be installed
(c) Complete Table 1 on keyboard shortcuts.
Table 1
| S/N | Keystroke | Action |
| (i) | Page brake | |
| (ii) | Ctrl+F | |
| (iii) | F1 | |
| (iv) | Ctrl+F2 |
(a) Define the term Software Maintenance.
(b) List four types of Software Maintenance.
(c) State our importance of software maintenance.
Mr Okafor has a company that specializes in the production of beverages with headquarters in Abuja. He intended to monitor the sales and transactions in the company’s branches across Nigeria as well as interact with his customers.
(a) Through what platform can Mr Okafor achieve his intention?
(b) What computer professional should Mr Okafor hire to design the platform in 3(a)?
(c) State two software packages needed to create the platform for Mr Okafor.
(d) If Mr Okafor decides to connect all the offices within the headquarters in abuja in a single network;
(i) What type of network is appropriate?
(ii) Mention three reasons to support his decision.
(e) Mention two transmission media that can be used to implement the network in 3(d)(i).
(a)(i) What is computer Ethics?
(ii) State three computer room management ethics.
(b) List five laboratory rules and regulations.
(a) State four classes of computer based on size.
(b) Define the term Information and Communication Technology (ICT).
(c) Highlight three wys (ICT) has impacted on the society.
Which of these operations would not improve the performance of a parallel database system?
- A. Building indexes
- B. Deleting unwanted data
- C. Evaluating queries
- D. Storing data across several sites.
Maintaining the value nd content of data is part of data
- A. coding
- B. integrity
- C. secrecy
- D. security
Which of the following is not an advantage of file organization?
- A. Faster processing of data input
- B. Postal data retrieval
- C. Prevention of data failure and data loss
- D. Safety of data and information in a storage medium
What file organization would require that all the five (5) records be read before the 6th record is written?
- A. Direct-access file
- B. Index sequential file
- C. Random access file
- D. Sequential access file
Which of the following is not an effect of computer virus?
- A. It distorts the computer screen
- B. interferes with computer operation
- C. damages the computer
- D. corrupts the computer
Which of these methods would delete a relationship defined between two tables in MS Access?
- A. Selecting delete relationship from the edit menu dialog box
- B. Selecting the relationship line and pressing Delete key
- C. Selecting Delete from the relationship menu
- D. Selecting Delete relationship from the file drop menu
Which of the following is used to retrieve specific information from database tables?
- A. Index
- B. Query
- C. Report
- D. Table
Which of the following is not an anti-virus?
- A. Avast
- B. AVG
- C. Compaq
- D. Norton
A computer professional who studies an existing system with a view to evolving a computer-based system from it is called?
- A. computer engineer
- B. computer programmer
- C. data-base administrator
- D. system analyst
Safety measures to be observed when using the computer include all of the following except
- A. use of anti-glare protector
- B. sitting posture
- C. maintaining a dust-free environment
- D. dropping liquids in the computer rooms
Which of the following is safety measure in the computer laboratory?
- A. Eating in the computer laboratory
- B. Illumination in the computer laboratory
- C. Opening the monitor by unauthorized persons
- D. Poor ventilation in the computer laboratory
Commonly accepted practices, rules or methods in computing are called
- A. Conventions
- B. Habits
- C. Laws
- D. Standards
Which of the following is not a good computer maintenance practice?
- A. Blowing the system unit with a blower
- B. Blowing the keyboard with a blower
- C. Cleaning the screen with a wet cloth
- D. Cleaning the CD-ROM drive with lens cleaner
Which of the following is one of the tools used to maintain the computer
- A. Blower
- B. Calipper
- C. Cotton wool
- D. Kerosine
Magazines and brochures can be produced using a
- A. data processing software
- B. graphics software
- C. presentation software
- D. web authoring software