Electronic gift, China Electronic gift, Electronic gift Manufacturers, China Electronic gift Suppliers--yiwugift.com

Your position: Yiwugift > Electronic Gift > Electronic Gift
Electronic-Gift

After the war, electron tubes were used to develop the first computers, but they were impractical because of the sizes of the electronic components. In 1947, the transistor was invented by a team of engineers from Bell Laboratories. John Bardeen, Walter Brattain, and William Shockley received a Nobel prize for their creation, but few could envision how quickly and dramatically the transistor would change the world. The transistor functions like the vacuum tube, but it is tiny by comparison, weighs less, consumes less power, is much more reliable, and is cheaper to manufacture with its combination of metal contacts and semiconductor materials. Development of the television as an electronic device benefitted from many improvements made to radar during World War II. Radar was the product of studies by a number of scientists in Britain of the reflection of radio waves.
more

Torch (520) Laser Lamp (50) Calculator (186) Radio (233) Electronic Gift (93) Flashing Electronic Gift (63) Promotional Fan (77) Digital Gift (56) Calendar (90) Sound Box (17) Theftproof Gear (13)

home prev [1][2][3][4][5]next end[ Totals 93 gifts,and 5 pages ]

Music Box
ID: HP-024650
The solar energy doll suspends
ID: HP-024167
The solar energy doll suspends
ID: HP-024168
The solar energy doll suspends
ID: HP-024169
The solar energy doll suspends
ID: HP-024170
The solar energy doll suspends
ID: HP-024171
The solar energy doll suspends
ID: HP-024172
The solar energy doll suspends
ID: HP-024173
The solar energy doll suspends
ID: HP-024174
The solar energy doll suspends
ID: HP-024175
The solar energy doll suspends
ID: HP-024176
The solar energy doll suspends
ID: HP-024177
The solar energy doll suspends
ID: HP-024178
Projection Clock
ID: HP-023956
laser pen
ID: HP-023757
clock
ID: HP-023625
Lamp
ID: HP-023299
sun power office gift
ID: HP-023070
Dust catcher
ID: HP-023073
step counter
ID: HP-023083

home prev [1][2][3][4][5]next end[ Totals 93 gifts,and 5 pages ]

About Yiwu City | Order process | Ordinary problem | Payment | Delivery method | Opinion complaint | Website declare | Friendly link | Website map

TEL:0086-579-85379696 FAX:0579-85364147 Mobile phone:0086-15957972102 Ms. Jessie MSN:sales@huapintrade.com

PS:Overall photos and logos are patent and commodities are authorized to produce.
Copyright ©2004-2011 Yiwu Hua Pin Trade Co.,Ltd (www.yiwugift.com ) ICP:05005291