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(d) Explain the function of each of the following email features. (4 marks) November 2022
(i) Function keys: Function keys are keys located at the top of a computer keyboard and are labeled with the letters F1 through F12. They typically perform specific functions in a program or operating system. For example, in a word processing program, the F1 key may open the program's help menu, whiRead more
(i) Function keys: Function keys are keys located at the top of a computer keyboard and are labeled with the letters F1 through F12. They typically perform specific functions in a program or operating system. For example, in a word processing program, the F1 key may open the program’s help menu, while the F5 key may refresh the document.
(ii) Navigation keys: Navigation keys are keys that are used to move the cursor or the text insertion point around in a document. These keys include the arrow keys, the page up and page down keys, the home and end keys, and the delete and backspace keys. For example, the arrow keys can be used to move the cursor around in a document, while the page up and page down keys can be used to scroll through a document. The home key takes the cursor to the start of a line, end key takes the cursor to the end of a line and delete key deletes the character after the cursor and backspace deletes the character before the cursor.
In summary, function keys perform specific functions in a program or operating system, Navigation keys move the cursor or the text insertion point around in a document and helps to navigate through the document.
See less(c) With the aid of an example in each case, describe the function of the following categories of computer keyboard keys: (i) Function keys; (ii) Navigation keys. (6 marks)November 2022
(i) Function keys: Function keys are keys located at the top of a computer keyboard and are labeled with the letters F1 through F12. They typically perform specific functions in a program or operating system. For example, in a word processing program, the F1 key may open the program's help menu, whiRead more
(i) Function keys: Function keys are keys located at the top of a computer keyboard and are labeled with the letters F1 through F12. They typically perform specific functions in a program or operating system. For example, in a word processing program, the F1 key may open the program’s help menu, while the F5 key may refresh the document.
(ii) Navigation keys: Navigation keys are keys that are used to move the cursor or the text insertion point around in a document. These keys include the arrow keys, the page up and page down keys, the home and end keys, and the delete and backspace keys. For example, the arrow keys can be used to move the cursor around in a document, while the page up and page down keys can be used to scroll through a document. The home key takes the cursor to the start of a line, end key takes the cursor to the end of a line and delete key deletes the character after the cursor and backspace deletes the character before the cursor.
In summary, function keys perform specific functions in a program or operating system, Navigation keys move the cursor or the text insertion point around in a document and helps to navigate through the document.
See less(b) Peter entered value 25 in cell Al in a spreadsheet program. Write a formula that could be used to increase this value by 20%. (2 marks)November 2022
The formula to increase the value of cell Al by 20% could be: =Al*1.2 This formula multiplies the value in cell Al by 1.2, which is the equivalent of increasing the value by 20%. Another way to write the formula would be =Al+Al*0.2 This formula is adding the value in cell Al to the result of Al multRead more
The formula to increase the value of cell Al by 20% could be:
=Al*1.2
This formula multiplies the value in cell Al by 1.2, which is the equivalent of increasing the value by 20%.
Another way to write the formula would be
=Al+Al*0.2
This formula is adding the value in cell Al to the result of Al multiplied by 0.2 which is also equivalent of increasing the value by 20%.
See less3. (a) Outline the fumction of each of the following utility programs in a computer system: (2) disk defragmenter; (ii) disk clean-up; (iii) file management. (3 marks)November 2022
(i) Disk defragmenter: A disk defragmenter is a utility program that reorganizes the files on a hard disk drive so that they are stored in contiguous blocks. This improves the performance of the computer by reducing the time it takes to access files. (ii) Disk clean-up: A disk clean-up utility progrRead more
(i) Disk defragmenter: A disk defragmenter is a utility program that reorganizes the files on a hard disk drive so that they are stored in contiguous blocks. This improves the performance of the computer by reducing the time it takes to access files.
(ii) Disk clean-up: A disk clean-up utility program is used to remove unnecessary files from a hard disk drive. This can include temporary files, old backups, and files that are no longer needed. Removing these files can free up disk space and improve the performance of the computer.
(iii) File management: A file management utility program provides tools for organizing, searching for, and manipulating files on a computer. This can include features such as creating and deleting folders, renaming files, and moving files between folders. A file manager can also provide additional functionality such as file compression, encryption and decryption.
See less) The management of XYZ college received a system audit report indicating that their information system requires protection from malware. Explain twe examples of malware that the system should be protected from. (4 marks)November 2022
Virus: A virus is a type of malware that attaches itself to a legitimate program or file and replicates itself. Once activated, a virus can damage or corrupt files, steal personal information, or even cause the entire system to crash. Trojan: A Trojan is a type of malware that disguises itself as aRead more
(b) Distinguish between a dedicated computer and a general-purpose computer. (4 marks)November 2022
A dedicated computer is a computer that is designed to perform a specific set of tasks or to perform a single task. It is optimized for that particular task and is not intended to be used for any other purpose. For example, a cash register is a dedicated computer because it is specifically designedRead more
A dedicated computer is a computer that is designed to perform a specific set of tasks or to perform a single task. It is optimized for that particular task and is not intended to be used for any other purpose. For example, a cash register is a dedicated computer because it is specifically designed to process financial transactions and cannot be used for other tasks.
On the other hand, a general-purpose computer is a computer that is designed to be versatile and can be used for a wide range of tasks. It is not optimized for any specific task and can be used for a variety of purposes. Examples of general-purpose computers include personal computers, laptops, and servers. These computers can run multiple applications and can be programmed to perform various tasks.
In summary, a dedicated computer is a single-task computer, optimized for specific use, and a general-purpose computer is a versatile computer, can be used for multiple tasks and is not optimized for any specific use.
See less2. (a) Outline three items that could be displayed on the title bar of a word processing program window. (3 marks)November 2022
The name of the document currently open in the program The name of the program itself The name of the current user or the name of the user who last saved the document. The current page number and total number of pages in the document. The current status of the document (e.g. "saved" or "unsaved") AnRead more
(d) _—_ Justus intends to print a word processing document. Outline four print options he could set in the print dialog box. (4 marks)November 2022
Number of Copies: This option allows the user to specify the number of copies of the document that should be printed. The user can select the number of copies needed in this field. Page Range: This option allows the user to specify a specific range of pages that should be printed, rather than the enRead more
(c) Distinguish between aufo content wizard and slide design as used in a presentation program. (4 marks)November 2022
Auto Content Wizard and slide design are two features in a presentation program that are used to create and customize the layout and content of slides in a presentation. Auto Content Wizard is a tool that helps users to quickly create a presentation by providing pre-designed templates and layouts. IRead more
Auto Content Wizard and slide design are two features in a presentation program that are used to create and customize the layout and content of slides in a presentation.
Auto Content Wizard is a tool that helps users to quickly create a presentation by providing pre-designed templates and layouts. It guides the user through a series of steps to enter the title, sub-title, and bullet points, and then automatically creates the slide with the entered information. This can save time and effort when creating a presentation, but it may also limit the creativity and flexibility of the user.
Slide design, on the other hand, is a feature that allows users to customize the layout and design of slides in a presentation. It provides users with a wide range of options to change the background, colors, font styles, and images. Users can also use the slide design feature to add multimedia elements such as videos, audio, and animations to the presentation. This feature provides users with more control over the visual appearance of the presentation, but it also requires more time and effort to create.
In short, Auto Content Wizard is a tool that helps in quickly creating a presentation, while slide design allows users to customize the layout and design of the presentation.
See less(b) Explain each of the following types of storage media used in a computer system: (i) magnetic media; (ii) optical media. (4 marks)November 2022
(i) Magnetic Media: Magnetic media is a type of storage that uses magnetic particles to store data. This includes hard disk drives (HDD), floppy disks, and magnetic tapes. Data is stored on the magnetic media by aligning the magnetic particles in a particular pattern, which can be read and written tRead more
(i) Magnetic Media: Magnetic media is a type of storage that uses magnetic particles to store data. This includes hard disk drives (HDD), floppy disks, and magnetic tapes. Data is stored on the magnetic media by aligning the magnetic particles in a particular pattern, which can be read and written to by a magnetic head.
Hard disk drives (HDD) are the most common type of magnetic storage. They consist of one or more rotating disks coated with magnetic material, and a read/write head that moves across the disk surface to read and write data. They are used to store the operating system, applications, and data files, and have large storage capacities.
Floppy disks and magnetic tapes are another type of magnetic storage media, but they are less common today. They are used for backup and archival purposes, and have less storage capacity than hard drives.
(ii) Optical Media: Optical media is a type of storage that uses a laser to read and write data. This includes compact discs (CDs), digital versatile discs (DVDs), and Blu-ray discs. Data is stored on the optical media by burning small pits or marks into the surface of the disc, which can be read by a laser.
Compact discs (CDs) have been used for storing music, photos, and data files for many years. They have a storage capacity of about 700 MB. Digital versatile discs (DVDs) have a larger storage capacity of about 4.7 GB and can be used to store videos and other large files. Blu-ray discs have even larger storage capacity of up to 50 GB and are used to store high-definition videos and other large files. Optical storage media is used for backup and archival purposes, and as a distribution medium for music, movies and software.