SC again =DD

assalamualaikum :))

Entri pada kali ini adalah untuk menerangkan serba sedikit tentang Chapter 2 ; Computer System,

Serba sedikit je la kan. haha. bukan lahh semua. memang tak la kan.

oke. 

let us discuss about the sub topic of the chapter : 2.1

2.1 ni include overview of computer system. data representation and storage capacity.

mari kita bercerita satu-satu ye, hehe.

bermula dengan ini.

Overview of Computer System. 

 what we should know about the above title?

Firstly, define of bende alah kat bawah ni..

  

Maksudnya : an electronic device that accepts input process data and produces output.

* itu main point je lahh. boleh la kalau nak tulis kat PSPM kankan? haha

Seterusnya, Computer System.

Maksudnya : a complete, working computer that includes operating system, software and hardware which are necessary to make the computer function.

kat dalam Computer System have many components. Generally, ada two types.
Hardware : Input Devices, CPU, Output Devices and Storage Devices.
Software : System Software and Application Software.
*pandai-pandai lahh hafal perkara yang bermakna ye. =DD


Next, Basic Processes in Computer 

yang important here are Input, Process, Output and Storage.

kalau dari segi lukisan art nye lebih kurang macam kat bawah ni laa...

Actually gambar yang sebenarnya bukan macam ni lahh. Picture of it je. Letter I and O tu kene replace with PARALLELOGRAM shape, letter P kena replace with RECTANGLE shape and letter S for CYLINDER shape.

....................................................................................................................................................................

Stop about the Overview of Computer System.

Now, I'm going to share something about the

 Data Representation

selama ni we just know to tekan-tekan this kind of devices. BUT..

how does it represent data?

kepada sesiapa yang kurang arif mengenai IT, the answer of the above question was included below.

*bacelahh.. kalau taknak hafal pon takpe. untuk general knowledge ape slahnye kann..

but then, for CS students jangan buat-buat tak tahu plak pasal soalan di atas. kotkot lahh termuntah soalan ni kat dalam PSPM kannn.

 Answer : By using two unique binary digits 1 and 0 to represent the two states on and off (electrical states). 

the above diagram is one of the example of binary digit.

* bende ni dah blajar ehh dalam math. jangan nak buat-buat hilang ingatan pulak. btw, peringatan! PSPM tak boleh gune calculator ehh. haha. padan muke!

sudahsudah, berhenti mencarut! 

* Mai punya word. haha.

straight to the Z.

How letter is converted to binary form and back?

Step 1 : Firstly, tekan letter manemane lahh kat keyboard tu.

Step 2 : Then, electrical signal of the letter yang korang tekan tu dihantar ke System Unit atau pun CPU lahh senang cite.

Step 3 : Signal of the letter tadi is converted to binary code ( something like 010010 laa ) untuk disimpan kat memory untuk diproses.

Step 4 : Lepas diproses, binary code akan di convert kan to an image dan akan appear on the monitor.  

....................................................................................................................................................................

lastlast!! 

lepas ni nak tido.

kahkah

Typical Storage and Capacities

Storage	Capacity
Diskette	1.44 MB
CD-ROM	1.44 MB
HARD DISKS External hard disk Removable hard disk	Up to 4TB or more Up to 1TB or more
Tape Drive	A few hundred kilobytes to several gigabytes

DVD and Blu-ray Storage Capacity

Slides	Layers	DVD	Blu-ray
1	1	4.7GB	25GB
1	2	8.5GB	50GB
2	1	9.4GB	50GB
2	2	17GB	100GB

Typical of Flash Memory Storage

Storage	Capacity
Solid State Drives (SSD)	16GB – 256GB
Memory Cards Compact Flash (CF ) Secure Digital (SD) SDHC XD Picture Card	512GB – 100GB 512GB – 8GB 4GB – 32GB 256MB – 2GB
USB Flash Drive	512MB – 100GB

Ini betul-betul yang terakhir (^_^)

Ini untuk convert - mengconvert segala bytebyte yang ada.

Yang paling small value adalah bit then byte then kilobyte (KB ) then megabyte (MB) then gigabyte (GB)
berapa banyak then daa (-_-)!

ni contoh calculation laa so that you all faham extravaganza sikit.
hehe

1200 MB = 1200/1024    = 1.17 GB

ehh. lupe plak nak explain pasal calculation.
bit ke byte darab lapan. kalau yg lain-lain tu darab ngan seribu dua puluh empat.
haa...
betul lahh tu!
hehe

Another information boleh laa tengok kat sini dan sini.

Alhamdulillah..
Complete sudah.
Boleh tidur dengan tightly nya..
haha.

SELAMAT MALAM KALIAN :)
muahhmuaahhh!
haha. gatal.
(>_<)"