Answered

dia (4marks)
(i) State four devices that input data in the computer through scanning (4marks)
(ii) Name four
factors to consider when choosing an input
device (4marks)
(iii) Describe two application areas of Digitizers (4marks)
13. List five challenges experienced by the users of the first generation computers (4marks)
14.
(i) State two ways of discharging static electricity that might accumulated on the
hands during basic computer setup and cabling (2marks)
(ii) Identify three controllers used to connect a hard disk to the motherboard (3marks)
(iii) What is hot swapping (2mark)
(iv) Write the following acronyms in full (3marks)
(a) SATA
(b) SCSI
(c) EIDE
15. Describe four types of registers located inside the microprocessor (4marks)
16. Baroness
bought a new lap pre-installed
with window 11 operating system
for her
personal use, when she switched the computer on, She released
that some
applications
were not installed. Briefly describe four factors Baroness
should consider before
acquiring
the application(4marks)
17. Describe five functions of the operating system (4marks)
18. Give three electric pathway used by device like main memory, control unit, arithmetic
and logic unit to communicate (3marks)
S
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Answer :

GinnyAnswer
**Question 13:** (i) **Four devices that input data in the computer through scanning:** - Scanner - Barcode reader - OCR (Optical Character Recognition) device - Digital camera (ii) **Four factors to consider when choosing an input device:** - Compatibility with the computer system - Ease of use - Speed and accuracy of input - Cost-effectiveness (iii) **Two application areas of Digitizers:** - Graphic design: Digitizers are used for creating digital drawings and illustrations. - Architecture and engineering: Digitizers are used to input precise measurements and drawings into computer-aided design (CAD) software. **Question 14:** (i) **Two ways of discharging static electricity:** - Touching a grounded metal object - Using an antistatic wrist strap (ii) **Three controllers used to connect a hard disk to the motherboard:** - SATA (Serial ATA) controller - SCSI (Small Computer System Interface) controller - IDE (Integrated Drive Electronics) controller (iii) **Hot swapping:** Hot swapping refers to the ability to replace or add components to a computer system without shutting it down. (iv) **Acronyms in full:** - SATA: Serial Advanced Technology Attachment - SCSI: Small Computer System Interface - EIDE: Enhanced Integrated Drive Electronics I will continue with the remaining questions in separate responses for better clarity and organization.
SmartManMrmath
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