Computer Science Computer homework

Name: Abednego Rosana Ondieki

Adm: ED12/00229/23

A i.The main components of the system unit are;

· The Central Processing Unit (CPU)

· The Motherboard

· Random Access Memory (RAM)

· A Hard Disk Drive (HDD). A Solid State Drive (SSD)

· Power Supply Unit (PSU)

ii. The basic input and output devices are;

· Input; Keyboard and Mouse

· Output; Monitor and Speakers

iii. If you want to watch television and listen to the radio you will need a TV Tuner card that can be plugged into a PCI Express (PCIe) slot.

iv. To connect your camera use a USB port.

v. There are two types of software that you need to install;

· Operating System; Examples include Windows, macOS, Linux.

· Application Software; Examples include Microsoft Office for productivity and Adobe Photoshop for image editing.

B. Binary calculations;

i. 0110 + 0101 = 1011

ii. 1111- 1010 = 0101

iii. 0101 multiply by 1101

0101

*1101

10101

iii. 1010101/ 0101

Steps

· We devide 1010101 by 0101 which gives us 10 reminder 1001

· We again devide 1010101 by 1001 which gives us 0

· Then we can say the results of 1010101/0101 is 10 without reminder

C.Comparison of Intel processor types;

· Celeron; It is an entry level processor, with performance capabilities.

· Pentium; This processor falls in the. Category and offers decent performance.

· Core 2 Duo; The Core 2 Duo is a dual core processor.

· Duo Core; This term is not commonly used,. It likely refers to dual core processors.

D.Hexadecimal Additions:

i) FFAA + A100

FFAA

+ A100

19BAA

ii) 0123 + A5EE

0123

+ A5EE

A711

D. Hexadecimal Subtractions:

i) FFFFAAAA – 12AA02AB

To subtract hexadecimal numbers, we can use borrowing just like normal.

FFFFAAAA

· 12AA02AB

A – B = A – B = 10 – 2 = 8

A – B (with borrow) = A – B – 1 = 9 – 1 = 8

0 – A (with borrow) = 0 – A – 1 = -A – 1

A – 2 = A – 2 = 10 – 2 = 8

9 – A (with borrow) = 9 – A – 1 = 9 – A – 1

A – 0 = A

So the answer is 88F88E7F