(a) Complete Table 1 wih the appropriate criteria for each medium. Table 1 Criteria/Medium DVD-ROM Hard Disk Magnetic Tape Location of storage media Externa...
Question 1 Report
(a) Complete Table 1 wih the appropriate criteria for each medium.
Table 1
| Criteria/Medium | DVD-ROM | Hard Disk | Magnetic Tape |
| Location of storage media | External | (i) _________ _________ |
(ii) __________ __________ |
| Removability | (iii) __________ __________ |
(iv) __________ ___________ |
(v) ___________ ____________ |
| Method file Access | (vi) __________ __________ |
Random/Direct Access | (vii) ___________ ___________ |
(b) List three examples of spreadsheet application.
Answer Details
(a) Completed Table 1 - Criteria for each storage medium.
Each medium is compared by where it is located, whether it can be removed, and how files are accessed on it.
| Criteria / Medium | DVD-ROM | Hard Disk | Magnetic Tape |
|---|---|---|---|
| Location of storage media | External | (i) Internal | (ii) External |
| Removability | (iii) Removable | (iv) Fixed (Non-removable) | (v) Removable |
| Method of file Access | (vi) Random (Direct) Access | Random / Direct Access | (vii) Sequential (Serial) Access |
Reasoning: A hard disk is normally fixed inside the system unit, so it is internal and non-removable, while a DVD-ROM and a magnetic tape are inserted into a drive from outside, so they are external and removable. Both the DVD-ROM and the hard disk allow the read head to jump straight to any location, giving random (direct) access, whereas a magnetic tape must be read in order from the beginning to the required record, giving sequential (serial) access.
(b) Three examples of spreadsheet applications:
- Microsoft Excel
- Lotus 1-2-3
- Apple Numbers (or Google Sheets / VisiCalc)
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