[FAST] Mono-directional Read and Write Tape
IMPORTANT: the download link is updated. If you still own the outdated version you should move the read lever (about 4 blocks) to the left or else 'read' does not work properly!

Quick overview

capacity: 46 bytes (368 bits)
least addressable unit: 1 byte
dimensions: 20x34x18 (floor included)
download: schematic (see link)
blocks/sec: 2
secs/block: 0.5 (5 ticks)
read block: 1 tick
write block: 4 ticks

Overview

Very fast mono-directional tape. The control panel is large because we hadn't had the intention to make it compact. We designed it in such a way it is easy to hook up with other redstone devices or with a databus. Pushing one block takes 5 ticks. Reading takes 1 tick. Writing takes 4 ticks. We think it could have operated faster, but we are enough satisfied with our current design.
This device should be synchronized, though we won't guarantee it is.
Note: as of we used many pistons to move the tape, it may lag your client or server when using this redstone device. We therefore can't guarantee that this device works on slow clients or servers.