Question No 1: Marks 5
Distinguish the following as: input, output, processing, communication and storage devices:
- Microphone CPU
- Digital pen
- Modem
- CD/DVD disc
- Speakers
- Touch pad
- Multimedia Projector
- Network Adapter
- USB flash drive
Question No 2: Marks 10
Convert the following:
a) (410)10 decimal number into its equivalent binary number (5 Marks)
b) (101101)2 binary number into its equivalent decimal number. (5 Marks)
Solution is Given Below
Slution Question 1
- Microphone (output)
- CPU
- Digital pen (input)
- Modem (communication)
- CD/DVD disc (storage)
- Speakers (output)
- Touch pad (input)
- Multimedia Projector (output)
- Network Adapter (communication)
- USB flash drive (storage)
Solution Question 2 (a)
| 2 | 205 | |
| 2 | 102 | 1 |
| 2 | 51 | 0 |
| 2 | 25 | 1 |
| 2 | 12 | 1 |
| 2 | 6 | 0 |
| 2 | 3 | 0 |
| 1 | 1 |
(11001101)2
Solution Question 2 (b)
(1×25 )+( 0x24 )+ (1×23 )+( 1×22 )+ (0x21 )+ (1×20 )
= (1 x 32) + (0 x 16)+ (1 x 8)+ (1 x 4)+ (0 x 2) +( 1 x 1)
= 32 + 0 + 8 + 4 + 0 + 1
= (45)10